On October 25, 2025, the Hubble Bubble Day 1 & Ghostly 1 Mile invites runners of all levels to embrace a spooky spirit while challenging themselves on an entirely flat out-and-back course beside the Leeds‑Liverpool Canal in Kirkstall. Distances range from a leisurely 5K to a full ultra‑marathon, culminating in a family-friendly Ghostly 1 Mile starting at 4:30 PM. Participants are rewarded with Halloween treats, bespoke medals, spot prizes, and a festive atmosphere—costumes are encouraged but not required. With aid stations every three miles and a traffic‑free trail, it's both beginner-friendly and ideal for seasoned runners chasing fast times. Organized by It's Grim Up North Running, this event brings community, costumes, and camaraderie to Bramleys and beyond.
Races
32 miles
Marathon
20 miles
Half Marathon
10 miles
10 km
5 km
Race Date:
25 October, 2025
The Ultra distance, held on Saturday, 25 October 2025, extends beyond the marathon using extra laps on the canal path. Organised by It’s Grim Up North Running, it’s suited to seasoned endurance runners looking for a supportive, Halloween-spirited ultra experience.
Race Date:
25 October, 2025
The Marathon on Saturday, 25 October 2025 features a multi-lap format along the picturesque Leeds–Liverpool Canal starting from Kirkstall. Organised by It’s Grim Up North Running, it offers well-stocked aid stations every three miles and a friendly, festive vibe.
Race Date:
25 October, 2025
The 20 Miler is staged on Saturday, 25 October 2025 along the Leeds–Liverpool Canal, using the same flat and scenic laps as the marathon. Organised by It’s Grim Up North Running, it’s perfect for those training for a marathon or seeking a longer autumn challenge.
Race Date:
25 October, 2025
The Half Marathon takes place on Saturday, 25 October 2025, using multiple laps of the scenic canal route from Wyther Lane. Organised by It’s Grim Up North Running, it provides a flat, traffic-free course that’s ideal for chasing PBs or enjoying the Halloween atmosphere.
Race Date:
25 October, 2025
The 10 Miler on Saturday, 25 October 2025 covers an extended out-and-back stretch of the canal from Wyther Lane. Organised by It’s Grim Up North Running, it bridges the gap between 10K and half marathon distances, offering scenic views and a flat profile.
Race Date:
25 October, 2025
The 10K event offers a double-length out-and-back route along the same canal towpath, held on Saturday, 25 October 2025 in Kirkstall. Organised by It’s Grim Up North Running, it’s a fast and friendly race with spooky support stations and seasonal goodies.
Race Date:
25 October, 2025
The 5K race on Saturday, 25 October 2025 follows a flat, out-and-back stretch of the Leeds–Liverpool Canal from Kirkstall, Leeds. Organised by It’s Grim Up North Running, it’s perfect for beginners and those after a quick, Halloween-themed run with festive treats at the finish.
Weather based on historical averages.
FAQs
What is the Hubble Bubble Day 1 Ultra Marathon?
How long is the Hubble Bubble Day 1 Ultra Marathon?
Where does the Hubble Bubble Day 1 Ultra Marathon take place?
What is the elevation gain of the Hubble Bubble Day 1 Ultra Marathon?
How can I prepare for the Hubble Bubble Day 1 Ultra Marathon?
How do I choose the right training plan for the Hubble Bubble Day 1 Ultra Marathon?
The Ultra distance, held on Saturday, 25 October 2025, extends beyond the marathon using extra laps on the canal path. Organised by It’s Grim Up North Running, it’s suited to seasoned endurance runners looking for a supportive, Halloween-spirited ultra experience.
The Hubble Bubble Day 1 Ultra Marathon is 51km long.
The Hubble Bubble Day 1 Ultra Marathon takes place in Leeds, UK.
Runna classifies the Hubble Bubble Day 1 Ultra Marathon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 Ultra Marathon?
The Ultra distance, held on Saturday, 25 October 2025, extends beyond the marathon using extra laps on the canal path. Organised by It’s Grim Up North Running, it’s suited to seasoned endurance runners looking for a supportive, Halloween-spirited ultra experience.
How long is the Hubble Bubble Day 1 Ultra Marathon?
The Hubble Bubble Day 1 Ultra Marathon is 51km long.
Where does the Hubble Bubble Day 1 Ultra Marathon take place?
The Hubble Bubble Day 1 Ultra Marathon takes place in Leeds, UK.
What is the elevation gain of the Hubble Bubble Day 1 Ultra Marathon?
Runna classifies the Hubble Bubble Day 1 Ultra Marathon elevation profile as Flat.
How can I prepare for the Hubble Bubble Day 1 Ultra Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Hubble Bubble Day 1 Ultra Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 Marathon?
How long is the Hubble Bubble Day 1 Marathon?
Where does the Hubble Bubble Day 1 Marathon take place?
What is the elevation gain of the Hubble Bubble Day 1 Marathon?
How can I prepare for the Hubble Bubble Day 1 Marathon?
How do I choose the right training plan for the Hubble Bubble Day 1 Marathon?
The Marathon on Saturday, 25 October 2025 features a multi-lap format along the picturesque Leeds–Liverpool Canal starting from Kirkstall. Organised by It’s Grim Up North Running, it offers well-stocked aid stations every three miles and a friendly, festive vibe.
The Hubble Bubble Day 1 Marathon is 42km long.
The Hubble Bubble Day 1 Marathon takes place in Leeds, UK.
The Hubble Bubble Day 1 Marathon elevation gain is 88 metres, which Runna classifies as a Flat race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 Marathon?
The Marathon on Saturday, 25 October 2025 features a multi-lap format along the picturesque Leeds–Liverpool Canal starting from Kirkstall. Organised by It’s Grim Up North Running, it offers well-stocked aid stations every three miles and a friendly, festive vibe.
How long is the Hubble Bubble Day 1 Marathon?
The Hubble Bubble Day 1 Marathon is 42km long.
Where does the Hubble Bubble Day 1 Marathon take place?
The Hubble Bubble Day 1 Marathon takes place in Leeds, UK.
What is the elevation gain of the Hubble Bubble Day 1 Marathon?
The Hubble Bubble Day 1 Marathon elevation gain is 88 metres, which Runna classifies as a Flat race.
How can I prepare for the Hubble Bubble Day 1 Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Hubble Bubble Day 1 Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 20 Miler?
How long is the Hubble Bubble Day 1 20 Miler?
Where does the Hubble Bubble Day 1 20 Miler take place?
What is the elevation gain of the Hubble Bubble Day 1 20 Miler?
How can I prepare for the Hubble Bubble Day 1 20 Miler?
How do I choose the right training plan for the Hubble Bubble Day 1 20 Miler?
The 20 Miler is staged on Saturday, 25 October 2025 along the Leeds–Liverpool Canal, using the same flat and scenic laps as the marathon. Organised by It’s Grim Up North Running, it’s perfect for those training for a marathon or seeking a longer autumn challenge.
The Hubble Bubble Day 1 20 Miler is 32km long.
The Hubble Bubble Day 1 20 Miler takes place in Leeds, UK.
Runna classifies the Hubble Bubble Day 1 20 Miler elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 20 Miler?
The 20 Miler is staged on Saturday, 25 October 2025 along the Leeds–Liverpool Canal, using the same flat and scenic laps as the marathon. Organised by It’s Grim Up North Running, it’s perfect for those training for a marathon or seeking a longer autumn challenge.
How long is the Hubble Bubble Day 1 20 Miler?
The Hubble Bubble Day 1 20 Miler is 32km long.
Where does the Hubble Bubble Day 1 20 Miler take place?
The Hubble Bubble Day 1 20 Miler takes place in Leeds, UK.
What is the elevation gain of the Hubble Bubble Day 1 20 Miler?
Runna classifies the Hubble Bubble Day 1 20 Miler elevation profile as Flat.
How can I prepare for the Hubble Bubble Day 1 20 Miler?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Hubble Bubble Day 1 20 Miler?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 Half Marathon?
How long is the Hubble Bubble Day 1 Half Marathon?
Where does the Hubble Bubble Day 1 Half Marathon take place?
What is the elevation gain of the Hubble Bubble Day 1 Half Marathon?
How can I prepare for the Hubble Bubble Day 1 Half Marathon?
How do I choose the right training plan for the Hubble Bubble Day 1 Half Marathon?
The Half Marathon takes place on Saturday, 25 October 2025, using multiple laps of the scenic canal route from Wyther Lane. Organised by It’s Grim Up North Running, it provides a flat, traffic-free course that’s ideal for chasing PBs or enjoying the Halloween atmosphere.
The Hubble Bubble Day 1 Half Marathon is 21km long.
The Hubble Bubble Day 1 Half Marathon takes place in Leeds, UK.
The Hubble Bubble Day 1 Half Marathon elevation gain is 44 metres, which Runna classifies as a Flat race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 Half Marathon?
The Half Marathon takes place on Saturday, 25 October 2025, using multiple laps of the scenic canal route from Wyther Lane. Organised by It’s Grim Up North Running, it provides a flat, traffic-free course that’s ideal for chasing PBs or enjoying the Halloween atmosphere.
How long is the Hubble Bubble Day 1 Half Marathon?
The Hubble Bubble Day 1 Half Marathon is 21km long.
Where does the Hubble Bubble Day 1 Half Marathon take place?
The Hubble Bubble Day 1 Half Marathon takes place in Leeds, UK.
What is the elevation gain of the Hubble Bubble Day 1 Half Marathon?
The Hubble Bubble Day 1 Half Marathon elevation gain is 44 metres, which Runna classifies as a Flat race.
How can I prepare for the Hubble Bubble Day 1 Half Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Hubble Bubble Day 1 Half Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 10 Miler?
How long is the Hubble Bubble Day 1 10 Miler?
Where does the Hubble Bubble Day 1 10 Miler take place?
What is the elevation gain of the Hubble Bubble Day 1 10 Miler?
How can I prepare for the Hubble Bubble Day 1 10 Miler?
How do I choose the right training plan for the Hubble Bubble Day 1 10 Miler?
The 10 Miler on Saturday, 25 October 2025 covers an extended out-and-back stretch of the canal from Wyther Lane. Organised by It’s Grim Up North Running, it bridges the gap between 10K and half marathon distances, offering scenic views and a flat profile.
The Hubble Bubble Day 1 10 Miler is 16km long.
The Hubble Bubble Day 1 10 Miler takes place in Leeds, UK.
Runna classifies the Hubble Bubble Day 1 10 Miler elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 10 Miler?
The 10 Miler on Saturday, 25 October 2025 covers an extended out-and-back stretch of the canal from Wyther Lane. Organised by It’s Grim Up North Running, it bridges the gap between 10K and half marathon distances, offering scenic views and a flat profile.
How long is the Hubble Bubble Day 1 10 Miler?
The Hubble Bubble Day 1 10 Miler is 16km long.
Where does the Hubble Bubble Day 1 10 Miler take place?
The Hubble Bubble Day 1 10 Miler takes place in Leeds, UK.
What is the elevation gain of the Hubble Bubble Day 1 10 Miler?
Runna classifies the Hubble Bubble Day 1 10 Miler elevation profile as Flat.
How can I prepare for the Hubble Bubble Day 1 10 Miler?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Hubble Bubble Day 1 10 Miler?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 10km?
How long is the Hubble Bubble Day 1 10km?
Where does the Hubble Bubble Day 1 10km take place?
What is the elevation gain of the Hubble Bubble Day 1 10km?
How can I prepare for the Hubble Bubble Day 1 10km?
How do I choose the right training plan for the Hubble Bubble Day 1 10km?
The 10K event offers a double-length out-and-back route along the same canal towpath, held on Saturday, 25 October 2025 in Kirkstall. Organised by It’s Grim Up North Running, it’s a fast and friendly race with spooky support stations and seasonal goodies.
The Hubble Bubble Day 1 10km is 10km long.
The Hubble Bubble Day 1 10km takes place in Leeds, UK.
The Hubble Bubble Day 1 10km elevation gain is 27 metres, which Runna classifies as a Flat race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 10km?
The 10K event offers a double-length out-and-back route along the same canal towpath, held on Saturday, 25 October 2025 in Kirkstall. Organised by It’s Grim Up North Running, it’s a fast and friendly race with spooky support stations and seasonal goodies.
How long is the Hubble Bubble Day 1 10km?
The Hubble Bubble Day 1 10km is 10km long.
Where does the Hubble Bubble Day 1 10km take place?
The Hubble Bubble Day 1 10km takes place in Leeds, UK.
What is the elevation gain of the Hubble Bubble Day 1 10km?
The Hubble Bubble Day 1 10km elevation gain is 27 metres, which Runna classifies as a Flat race.
How can I prepare for the Hubble Bubble Day 1 10km?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Hubble Bubble Day 1 10km?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 5km?
How long is the Hubble Bubble Day 1 5km?
Where does the Hubble Bubble Day 1 5km take place?
What is the elevation gain of the Hubble Bubble Day 1 5km?
How can I prepare for the Hubble Bubble Day 1 5km?
How do I choose the right training plan for the Hubble Bubble Day 1 5km?
The 5K race on Saturday, 25 October 2025 follows a flat, out-and-back stretch of the Leeds–Liverpool Canal from Kirkstall, Leeds. Organised by It’s Grim Up North Running, it’s perfect for beginners and those after a quick, Halloween-themed run with festive treats at the finish.
The Hubble Bubble Day 1 5km is 5km long.
The Hubble Bubble Day 1 5km takes place in Leeds, UK.
Runna classifies the Hubble Bubble Day 1 5km elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hubble Bubble Day 1 5km?
The 5K race on Saturday, 25 October 2025 follows a flat, out-and-back stretch of the Leeds–Liverpool Canal from Kirkstall, Leeds. Organised by It’s Grim Up North Running, it’s perfect for beginners and those after a quick, Halloween-themed run with festive treats at the finish.
How long is the Hubble Bubble Day 1 5km?
The Hubble Bubble Day 1 5km is 5km long.
Where does the Hubble Bubble Day 1 5km take place?
The Hubble Bubble Day 1 5km takes place in Leeds, UK.
What is the elevation gain of the Hubble Bubble Day 1 5km?
Runna classifies the Hubble Bubble Day 1 5km elevation profile as Flat.
How can I prepare for the Hubble Bubble Day 1 5km?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Hubble Bubble Day 1 5km?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
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Sport:
Running
Tags:
Fun Run
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Hubble Bubble Day 1 & Ghostly 1 Mile 2025 or Its Grim Up North Running. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Hubble Bubble Day 1 & Ghostly 1 Mile 2025 website.
