BQ

    COMBO FILTER

    Best Spring Mostly Flat Marathons for a Boston Qualifier

    43 Boston-qualifying marathons · Spring · Mostly Flat

    These 43 spring mostly flat marathons are certified Boston qualifiers with courses built for fast times. Browse, compare, and plan your BQ attempt.

    Bound for Boston (Las Vegas) Marathon

    Henderson, NV
    High BQ
    March 15, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Glass City Marathon

    Toledo, OH
    Medium BQ
    April 26, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    London OH Marathon

    London, OH
    Medium BQ
    April 11, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Combos Marathon

    Albany, GA
    Medium BQ
    March 7, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Carmel Marathon

    Carmel, IN
    Medium BQ
    April 18, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Bayshore Marathon

    Traverse City, MI
    Medium BQ
    May 23, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Steel Rail Marathon

    Pittsfield, MA
    Medium BQ
    May 17, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Lake Wobegon Trail Marathon

    St. Joseph, MN
    Medium BQ
    May 9, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Eugene Marathon

    Eugene, OR
    Medium BQ
    April 26, 2026
    Large (2,000 - 9,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Jersey City Marathon

    Jersey City, NJ
    Medium BQ
    April 19, 2026
    Large (2,000 - 9,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Walter Childs Memorial Race of Champions Marathon

    Holyoke, MA
    Medium BQ
    May 3, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Modesto Marathon

    Modesto, CA
    Emerging BQ
    March 22, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Frisco Marathon

    Willard, MO
    Emerging BQ
    April 25, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Eisenhower Marathon

    Abilene, KS
    Emerging BQ
    April 18, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Ohio River Road Runners Club Marathon

    Xenia, OH
    Emerging BQ
    March 29, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Athens Marathon

    Athens, OH
    Emerging BQ
    April 19, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Newport Marathon

    Newport, OR
    Emerging BQ
    May 31, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    B and A Marathon

    Severna Park, MD
    Emerging BQ
    March 29, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Famous Idaho Potato Marathon

    Boise, ID
    Emerging BQ
    May 16, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Illinois Marathon

    Champaign-Urbana, IL
    Emerging BQ
    April 25, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Martian Marathon

    Dearborn, MI
    Emerging BQ
    April 11, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Buffalo Marathon

    Buffalo, NY
    Emerging BQ
    May 24, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Med City Marathon

    Rochester, MN
    Emerging BQ
    May 17, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Hyannis Marathon

    Hyannis, MA
    Emerging BQ
    March 1, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Coastal Delaware Running Festival Marathon

    Rehoboth Beach, DE
    Emerging BQ
    April 12, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Chicagoland Spring Marathon

    Schaumburg, IL
    Emerging BQ
    May 3, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Northwoods Escape Marathon

    Minocqua, WI
    Emerging BQ
    May 24, 2026
    Small (<500)
    40–60°F
    Mostly Flat

    Trailbreaker Marathon

    Waukesha, WI
    Emerging BQ
    March 29, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Wisconsin Marathon

    Kenosha, WI
    Emerging BQ
    April 25, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Maine Coast Marathon

    Wells, ME
    Emerging BQ
    May 3, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Kentucky Derby Festival Marathon

    Louisville, KY
    Emerging BQ
    April 25, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Brew City Marathon

    Milwaukee, WI
    Emerging BQ
    April 18, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Brainerd Jaycees Run for the Lakes Marathon

    Nisswa, MN
    Emerging BQ
    May 2, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Long Island Marathon

    East Meadow, NY
    Emerging BQ
    May 3, 2026
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Run the River Marathon

    Kennewick, WA
    Emerging BQ
    April 18, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Non Cancelled Marathon

    Oconomowoc, WI
    Emerging BQ
    April 25, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Windermere Marathon

    Spokane, WA
    Emerging BQ
    May 17, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Golden Driller Marathon

    Tulsa, OK
    Emerging BQ
    April 18, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Potomac River Run Marathon

    Washington, DC
    Emerging BQ
    May 2, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Marathon of the Treasure Coast

    Stuart, FL
    Emerging BQ
    March 1, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Rend Lake Marathon

    Whittington, IL
    Emerging BQ
    March 28, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Maui Marathon

    Kahului, HI
    Emerging BQ
    April 19, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Rock n Roll San Diego Marathon

    San Diego, CA
    Emerging BQ
    May 31, 2026
    Large (2,000 - 9,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Fast Course Briefing

    Get the monthly drop on the fastest Boston qualifiers.

    We track which courses are trending, how weather looks, and which registration windows are about to close. Subscribe to get one actionable briefing each month—built for runners and race directors alike.

    • Course intel: weather, elevation, and BQ odds for the next 60 days.
    • Deadlines: registration and deferment reminders before they disappear.
    • Spotlight races: two editor-picked events (one downhill, one flat) every issue.

    One email per month. Unsubscribe anytime.

    RELATED COMBINATIONS

    Explore more combos

    Browse all combos →

    Best Mostly Flat Marathons in the Midwest for a BQ

    51 races

    Browse 51 mostly flat Boston-qualifying marathons in the Midwest. Compare BQ rates and course details to plan your qualifier.

    Best Spring Rolling Hills Marathons for a Boston Qualifier

    49 races

    Browse 49 spring rolling hills Boston-qualifying marathons. Compare locations, BQ rates, and race sizes to find your best qualifier.

    Best Fall Mostly Flat Marathons for a Boston Qualifier

    48 races

    Browse 48 fall mostly flat Boston-qualifying marathons. Compare locations, BQ rates, and race sizes to find your best qualifier.

    Best Mostly Flat Marathons in the Northeast for a BQ

    24 races

    Browse 24 mostly flat Boston-qualifying marathons in the Northeast. Compare BQ rates and course details to plan your qualifier.