running.services
    5K · San Francisco

    5Ks in San Francisco, CA in May

    Every 5k happening in or near San Francisco during May. Sorted by date with deterministic 0–100 scores so you can pick the right one for your goal.

    Open in race search for full filters →
    5K

    Viking Run

    Sat, May 2, 2026
    San Francisco, California
    road
    Rolling
    65PR40value45vibe
    Register
    5K

    Sunrise Marathon 5K/10K/13.1 SAN FRANCISCO

    Sat, May 2, 2026
    San Francisco, California
    road
    Rolling
    65PR40value55vibe
    scenic
    Register
    5K

    Cinco De Mayo Run 5K/10K/13.1 SAN FRANCISCO

    Sat, May 2, 2026
    San Francisco, California
    road
    Rolling
    65PR40value55vibe
    festive
    Register
    5K

    The Sasquatch Scramble 5K/10K/Half Marathon (live or virtual)

    Fri, May 8, 2026
    San Francisco, California
    road
    Rolling
    65PR40value45vibe
    Register
    5K

    Race to Cure Sarcoma San Francisco

    Sat, May 9, 2026
    San Francisco, California
    road
    Rolling
    65PR50value65vibe
    charity
    Register
    5K

    Memorial Day Run 5K/10K/13.1 SAN FRANCISCO

    Sat, May 23, 2026
    San Francisco, California
    road
    Rolling
    65PR50value75vibe
    festive
    charity
    Register
    5K

    Run for Mental Health 5K/10K/13.1 SAN FRANCISCO

    Sat, May 23, 2026
    San Francisco, California
    road
    Rolling
    65PR40value45vibe
    Register

    Get an alert when a new race is added

    Save this search and we'll email you when a matching race opens registration or drops in price.

    Save this search

    Explore more

    10Ks in San FranciscoHalf Marathons in San FranciscoMarathons in San FranciscoTrail Races in San FranciscoAll races in California5Ks in San Francisco (all months)