Start and finish
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All races / CA
Diablo Summit Stomp Half Marathon
Walnut Creek, CA · Half Marathon
Recorded edition
A Mount Diablo trail half marathon with climbs and potential mud or creek crossings. The organizer welcomes walkers; review the current course and time limits.
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This edition was checked against official information on 2026-10-05. It may now be in the past; dates, courses and entry availability can change. This page is a source snapshot, not a live registration feed.
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Event location
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The route
Race route
2026 · Half Marathon
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