BQ

    COMBO FILTER

    Best Spring Mostly Flat Marathons for a Boston Qualifier

    56 Boston-qualifying marathons · Spring · Mostly Flat

    These 56 spring mostly flat marathons are certified Boston qualifiers with courses built for fast times. Browse, compare, and plan your BQ attempt.

    Planning context

    How to evaluate spring mostly flat qualifiers

    This collection is useful when the training calendar and terrain are already part of your decision. Spring races give you a defined build window, while a mostly flat course profile shapes the workouts, long runs, and pacing strategy you should rehearse. Compare the race cards for course profile, date, location, and verified historical metrics when available, then open the individual race pages for course notes and official registration details.

    For Boston qualifying, this page should be a short-list tool rather than the final answer. A race with a strong course profile may still be the wrong fit if it falls too soon after your peak training block, requires difficult travel, or uses terrain you have not practiced. A quieter race can be a better choice when the logistics are simple and the course matches your strengths.

    Before you register

    Do not assume every mostly flat course behaves the same. Weather, turns, aid-station spacing, start logistics, and travel recovery can change how realistic your goal pace feels on race day.

    Open each finalist, check the official race link, and compare the target pace against your Boston standard. If the decision is close, use BMQR's comparison tool so course profile, date, location, and verified historical metrics when available are visible in one place.

    Compare finalist racesCheck your qualifying standard

    Illinois Marathon

    Champaign-Urbana, IL
    Featured Listing
    April 24, 2027
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Combos Marathon

    Albany, GA
    March 6, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Marathon of the Treasure Coast

    Stuart, FL
    March 7, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    B and A Marathon

    Severna Park, MD
    March 7, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Bound for Boston (Las Vegas) Marathon

    Henderson, NV
    March 14, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Race to Space Marathon

    Huntsville, AL
    March 21, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Rend Lake Marathon

    Whittington, IL
    March 27, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Modesto Marathon

    Modesto, CA
    April 4, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Trailbreaker Marathon

    Waukesha, WI
    April 4, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Ohio River Road Runners Club Marathon

    Xenia, OH
    April 4, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Coastal Delaware Running Festival Marathon

    Rehoboth Beach, DE
    April 11, 2027
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Athens Marathon

    Athens, OH
    April 11, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    University of Charleston Marathon

    Charleston, WV
    April 11, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    London OH Marathon

    London, OH
    April 17, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Carmel Marathon

    Carmel, IN
    April 17, 2027
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Brew City Marathon

    Milwaukee, WI
    April 17, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Run the River Marathon

    Kennewick, WA
    April 17, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Golden Driller Marathon

    Tulsa, OK
    April 17, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Jersey City Marathon

    Jersey City, NJ
    April 18, 2027
    Large (2,000 - 9,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Washington State Marathon

    Seattle, WA
    April 18, 2027
    40–60°F
    Mostly Flat

    Kentucky Derby Festival Marathon

    Louisville, KY
    April 24, 2027
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Frisco Marathon

    Willard, MO
    April 24, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Non Cancelled Marathon

    Oconomowoc, WI
    April 24, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Wisconsin Marathon

    Kenosha, WI
    April 24, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    MV Spring Classic Marathon

    Marthas Vineyard, MA
    April 24, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Maui Marathon

    Kahului, HI
    April 25, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Eugene Marathon

    Eugene, OR
    April 25, 2027
    Large (2,000 - 9,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Glass City Marathon

    Toledo, OH
    April 25, 2027
    Mostly Flat

    Fort Wayne Marathon

    Fort Wayne, IN
    April 25, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Maine Coast Marathon

    Wells, ME
    May 2, 2027
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Long Island Marathon

    East Meadow, NY
    May 2, 2027
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Chicagoland Spring Marathon

    Schaumburg, IL
    May 2, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    OC Marathon

    Costa Mesa, CA
    May 2, 2027
    Large (2,000 - 9,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Sombrero Marathon

    Santa Clarita, CA
    May 2, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Lake Wobegon Trail Marathon

    St. Joseph, MN
    May 8, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Pine Tree Marathon

    Portland, ME
    May 9, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Three Days at the Fair Marathon (Spring)

    Augusta, NJ
    May 10, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Famous Idaho Potato Marathon

    Boise, ID
    May 15, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Windermere Marathon

    Spokane, WA
    May 16, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Med City Marathon

    Rochester, MN
    May 16, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Old Colony Marathon

    Springfield, MA
    May 28, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Bayshore Marathon

    Traverse City, MI
    May 29, 2027
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Buffalo Marathon

    Buffalo, NY
    May 30, 2027
    Medium (500 - 1,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Northwoods Escape Marathon

    Minocqua, WI
    May 30, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Red Island Marathon

    Warwick, RI
    May 30, 2027
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Newport Marathon

    Newport, OR
    June 5, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Rock n Roll San Diego Marathon

    San Diego, CA
    June 6, 2027
    Large (2,000 - 9,999)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Hyannis Marathon

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

    Martian Marathon

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

    Eisenhower Marathon

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

    Brainerd Jaycees Run for the Lakes Marathon

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

    Potomac River Run Marathon

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

    Walter Childs Memorial Race of Champions Marathon

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

    Steel Rail Marathon

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

    Spokane, WA 05/17/2026

    Spokane, WA 05/17/2026, WA
    May 17, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

    Newport Marathon (OR)

    Newport, OR
    May 31, 2026
    Small (<500)
    Cool to mild (45–65°F), variable conditions
    Mostly Flat

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