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Mainly Marathons
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  • Distance: 14.6 km from Springfield
    Jun 11 – 12, 2027 at 1:00 AM

    World's Best Marathon & Half Series (5K's, 10K's, & 50's too)!

    No Time Limits

    Great Food

    Award-Winning Medals

    Loony Community!

    Event details and schedule

    Thanks for running with Mainly Marathons! Take a look at our website for additional details about this series and our other series of races.

    Also, join our Facebook group to stay up-to-date with our loony adventures: Main Group and New England Series.

    If you're interested in some Mainly Merch, check out our online store HERE. We'll offer some items (hats, stickers, magnets, mugs, etc.) in-person at the races, the Mainly Merch store best option for a variety of fun designs and quality merchandise to showcase your loonacy!

    If you have any questions, email [email protected]

    Run
  • Distance: 19.9 km from Springfield
    Sat, Nov 21, 2026 at 9:00 AM

    Mount Ascutney Vertical Backyard

    Mount Ascutney Vertical BackyardA "Last Person Standing" type of event. Each hour participants will ascend (and descend) 1209 vertical feet via one of two routes. The race ends when there is only one person left.November 21, 2025 - 9:00 AM start90 RunnersCome out for a few hours or see just how much up and down your legs can handle before enjoying Thanksgiving dinner a few days later. ALL RUNNERS (and fast hikers too!) are welcome. This is a chance to challenge yourself, and exceed your expectations. Can you make it 4 hours, 8 hours, 12 hours, 24 hours?Runners have one hour to complete each lap (yard), and must be at the start line on the hour to continue racing. The laps are short, 2.25 miles with 1,209 feet of gain. Why 1209 feet per lap? If anyone can make it 24 hours, they will have equaled the ascent from sea level to the top of Mt. Everest. Runners will have the ability to do three laps up the t-bar path (403 feet) or one lap up to a spot on the hiking trail much higher on the mountain (1209 feet) each hour.We'll have one aid station at the bottom, with hot food available throughout the event and indoor tables and bathrooms at Ascutney Outdoors Center.Small prizes for all runners who hit elevation gains equivalent to:Mt. Washington (6,288 ft) - 5 Yards and a bit moreMt. Whitney (14,505 feet) - 12 YardsMt. Everest (29,032 feet) - 24 YardsAwards for:Cash Lap (m/f/nb) - Fastest Yard which occurs on hour 5Vert Gobbler - Turn around at higher turnaround, ~180ft extra per lap. Finisher with most extra vert wins.Assist - 2nd PlaceWinner - Last Person StandingThere will be spots to camp the night before and personal aid stations such as EZ-ups and tables are permitted.Much of the course is visible from the bottom, so it's a great spectator race, and racers will have endless views throughout. This a late November race on a mountain, so be prepared for any weather. It will get cold at night and there could be snow and ice.The course is 2.25 miles with approximately 1,209 feet of gain per mile. Links to loops below (ignore Strava's elevation gain in links below)Long loop:https://www.strava.com/routes/3412854362312059184Short Loop:https://www.strava.com/routes/3412870885962649666$150 entry fee (not including taxes)75% refunds through Oct 150% refunds through Nov 15% of entry fees will be donated to Ascutney Outdoors.5% of entry fees will be donated to Ascutney Trails Association5% of entry fees will be donated to West Windsor Fast SquadRunner's Handbookhttps://docs.google.com/document/d/1yJx64z9sCVIYtIy_bqit1NxOJBvCotgImykX8Nar8BQ/edit?usp=sharing

    Event's current local time: 5:06 AM ET

    Backyard UltraRunTrailUltra
  • Distance: 20 km from Springfield
    Sun, Sep 27, 2026 at 6:00 AM

    33 Years of Supporting Vermont Adaptive

    The Vermont 50 is an annual race held during the last weekend of September at Ascutney Outdoors in West Windsor, Vermont. All benefits go to Vermont Adaptive Ski and Sports. A wonderful place where youth and adults with disabilities gain a measure of self confidence and independence by participating in adaptive sports programs and activities year-round.

    Since 1993 the Vermont 50 has been a destination for mountain bikers and ultra runners to enjoy a challenging and scenic Vermont landscape course that is like no other. There is something for everyone. We offer the Vermont 50 mile Mountain Bike Race, Womens 2-person Bike Relay, Over 60 2-person Bike Relay, 50 mile Ultra Run, 50K Endurance Run, 2-3 Person 50 mile Run Team Relay and the Kids Fun Runs and Bike Rides.

    NOTE-This race does NOT allow E-Bikes.

    We are a family friendly event offering lots of kid centered activities such as the Hay Bale Treasure Hunt, The Fun Runs and Rides, clowns, face painting and more! Join us and find out why the Vermont 50 has become so popular. (Subject to change as COVID-19 rules and regulations apply.)

    Spots fill-up quickly so early registration is a must!

    50k50 MilesFun RunRunUltra