BQ

    COMBO FILTER

    Best Summer Mostly Flat Marathons for a Boston Qualifier

    13 Boston-qualifying marathons · Summer · Mostly Flat

    These 13 summer mostly flat marathons are certified Boston qualifiers with courses built for fast times. Browse, compare, and plan your BQ attempt.

    Santa Rosa Marathon

    Santa Rosa, CA
    Medium BQ
    August 23, 2026
    Medium (500 - 1,999)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Bound for Boston (Milwaukee) Marathon

    Menomonee Falls, WI
    Medium BQ
    August 23, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Millennium Meadows Marathon

    Grand Rapids, MI
    Medium BQ
    August 23, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Foot Traffic Flat Marathon

    Portland, OR
    Medium BQ
    July 14, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Maritime Marathon

    Manitowoc, WI
    Emerging BQ
    June 7, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Grandmas Marathon

    Duluth, MN
    Emerging BQ
    June 20, 2026
    Large (2,000 - 9,999)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    MISH Waterfront Marathon

    Gladstone, MI
    Emerging BQ
    June 6, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Missoula Marathon

    Missoula, MT
    Emerging BQ
    June 28, 2026
    Medium (500 - 1,999)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Wausau Marathon

    Wausau, WI
    Emerging BQ
    August 16, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Charlevoix Marathon

    Charlevoix, MI
    Emerging BQ
    June 20, 2026
    Medium (500 - 1,999)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Casper Marathon

    Casper, WY
    Emerging BQ
    June 7, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Boise Marathon

    Boise, ID
    Emerging BQ
    June 20, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    King Salmon Marathon

    Cordova, AK
    Emerging BQ
    July 18, 2026
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

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