Trail Running calendar near San Luis Obispo 2026-2027

Born To Run Ultra Marathon in Los Olivos CA on May 16, 2026 offers distances from 10 miles to 100 miles plus 3- and 4-day formats; registration opens December 1, 2025.

A community race at Thousand Hills Ranch on 09/06/2026 featuring a Kids Mile, 5K and 10K across mixed trail and paved ranchland. The event supports Central Coast Athletics Foundation and 17 Strong and includes a post-race festival.

A loop-based Last One Standing race at Smith Ranch in Bradley CA where runners repeat a 4.18 mile loop each hour until one runner completes the final lap; crews of two are allowed and on-course aid must be carried by competitors.

Tierra Redonda Mountain Trail Run and Camp in Bradley CA runs September 18 and 19, 2026, and offers multi day timed events plus 20 km and 10 km trail distances, with camping on site.

A multi-format trail event at Sand Creek Ranch near Los Olivos, CA featuring a 3.4 mile loop with about 400 ft of gain per lap, on-course aid, free camping, and awards including souvenir gear and buckle prizes for 100 mile finishers.

A multi distance trail event on the Gaviota Coast near Santa Barbara, with routes to Gaviota Peak and ridgelines. Distances range from 12 kilometers to 100 miles and proceeds support local trail maintenance.

A two day Spartan Trifecta Weekend at Santa Margarita Ranch featuring trail obstacle races from a 5 km Sprint to a 50 km Ultra. Courses run through vineyards and forest scenery with options for kids, workshops and spectators.

A two-day Spartan Trifecta weekend at Santa Margarita Ranch near Los Padres National Forest features Sprint, Super, Beast and a 50K Ultra across vineyard and hill terrain, plus kids races, an obstacle workshop and spectator access.

Rancho Ramble Trail Run takes place at Santa Margarita Ranch on November 8, 2026. The event offers 10K, half marathon and 50K options on soft, hilly trails through rolling pastures and oak-lined arroyos.

The Pacific Trails California by UTMB will take place in Lake Los Carneros from Saturday 14 November 2026 to Sunday 15 November 2026.

La Cuesta Ranch Trail Run takes place in San Luis Obispo on January 23, 2027 and offers 10 km, 20 km and 30 km trail distances as part of the AllWeDoIsRun event calendar.