BQ

    COMBO FILTER

    Best Mostly Flat Marathons in the West for a BQ

    36 Boston-qualifying marathons · West · Mostly Flat

    These 36 mostly flat marathons across the West are certified Boston qualifiers. Compare course profile, timing, location, and verified historical metrics when available.

    Planning context

    How to evaluate mostly flat qualifiers in the West

    This collection helps runners compare similar terrain inside one travel region. Keeping geography steady makes it easier to judge whether the main difference is course profile, timing, weather, or travel fit. Start with the most relevant race cards, then compare two or three finalists side by side before registering.

    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

    Regional familiarity can reduce uncertainty, but it does not replace race-specific research. Confirm the current course certification, date, packet pickup, and start plan on the official race site.

    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

    Jeepers Creepers Marathon

    Santa Clarita, CA
    October 18, 2026
    Cool (40–60°F), ideal racing conditions
    Mostly Flat

    Tri-Cities Marathon

    Richland, WA
    October 25, 2026
    Small (<500)
    45–65°F
    Mostly Flat

    ZombieRunner Halloween Marathon

    San Jose, CA
    October 31, 2026
    Small (<500)
    Cool (40–60°F), ideal racing conditions
    Mostly Flat

    Two Cities Marathon

    Fresno, CA
    November 1, 2026
    Medium (500 - 1,999)
    Cool (40–60°F), ideal racing conditions
    Mostly Flat

    Santa Clarita Marathon

    Santa Clarita, CA
    November 15, 2026
    Small (<500)
    Cool (40–60°F), ideal racing conditions
    Mostly Flat

    Holly Jolly Marathon

    Camarillo, CA
    December 20, 2026
    Small (<500)
    Cool (35–50°F)
    Mostly Flat

    Jed Smith Ultra Classic Marathon

    Sacramento, CA
    February 6, 2027
    Small (<500)
    Cool (35–50°F)
    Mostly Flat

    Surf City Marathon

    Huntington Beach, CA
    February 7, 2027
    Medium (500 - 1,999)
    Cool (35–50°F)
    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

    Modesto Marathon

    Modesto, CA
    April 4, 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

    Washington State Marathon

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

    Eugene Marathon

    Eugene, OR
    April 25, 2027
    Large (2,000 - 9,999)
    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

    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

    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

    Casper Marathon

    Casper, WY
    June 6, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Seaside Marathon

    Ventura, CA
    June 6, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Bound for Boston (Seattle) Marathon

    Olympia, WA
    June 13, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Boise Marathon

    Boise, ID
    June 20, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Missoula Marathon

    Missoula, MT
    June 27, 2027
    Medium (500 - 1,999)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Foot Traffic Flat Marathon

    Portland, OR
    July 4, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Shoreline Marathon

    Ventura, CA
    July 11, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    King Salmon Marathon

    Cordova, AK
    July 17, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Camarillo Marathon

    Camarillo, CA
    August 1, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    Mostly Flat

    Bound for Boston (Denver) Marathon

    Denver, CO
    August 1, 2027
    Small (<500)
    Warm to hot (65–80°F), humidity varies
    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

    Santa Rosa Marathon

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

    Appletree Marathon

    Vancouver, WA
    August 30, 2026
    Small (<500)
    Cool (40–60°F), ideal racing conditions
    Mostly Flat

    Surfers Point Marathon

    Ventura, CA
    September 6, 2026
    Small (<500)
    Cool (40–60°F), ideal racing conditions
    Mostly Flat

    Top of Utah Marathon

    Logan, UT
    September 19, 2026
    Small (<500)
    Cool (40–60°F), ideal racing conditions
    Mostly Flat

    Long Beach Marathon

    Long Beach, CA
    October 4, 2026
    Large (2,000 - 9,999)
    Cool (40–60°F), ideal racing conditions
    Mostly Flat

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