Island Running Festival

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The Island Running Festival will be held on September 20, 2026. This event is sponsored annually by the Bank of Marin and features a half marathon, a 10K, a 5K and a family fun running event. Event producer Steve Ashbaker of Outfront Endurance is donating 15% of the proceeds from the event, plus 100% of directed donations at registration, to  AEF programs.

Planning on running? Use the code AEF2026 for a discount at registration.

AEF will host an aid station for runners, plus will table at the Expo following the runs. We look forward to seeing you there!

Island Running Festival 2026