Monster Dash Half Marathon - Irvine

Irvine, United States • 26 Oct 2025

Monster Dash : Irvine, October 26, 2025

The event takes place at Bill Barber Memorial Park in Irvine on Sunday, October 26, 2025. Distances offered:

  • 5k
  • 10k
  • 15k
  • Half marathon

Course, rules and logistics

The course is an open route on a shared path and uses out-and-back loops that will be marked. Specific loop formats listed are: 5k as an out-and-back route, 10k as two 5k loops, 15k as three 5k loops, and the half marathon as three 4.36-mile loops. The event is a private reservation and is not endorsed or sponsored by the City of Irvine. Participants may not run with dogs; running or walking with a stroller is allowed. There is a 3:15 time limit for the half marathon; the organizer may allow an early start on request.

Park restrooms are about 200-300 meters (roughly a 5 minute walk) from the start/finish/check-in area. A separate restroom is about 0.62 miles (1 km) away at San Marco Park, with a path from the race route to that bathroom. Parking is free in the lot. Registration includes custom finisher medals, drawstring goodie bags, free photos and videos, posted results within 12-24 hours, and an assortment of snacks and samples. Race transfers and group registration are managed by the organizer. Visit the organization's website for the most recent information.

Race information

Half Marathon
Half Marathon
15 km
15k
10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

Trail races of 50K, 25K and 5K at Crystal Cove State Park with ocean views and hill climbs, benefiting the John Wayne Cancer Foundation; packet pickup is May 7 and the event is May 9, 2026.

O'Neill Park Trail Races take place May 16, 2026 in O'Neill Regional Park, using trails in Trabuco and Live Oak Canyons. The route passes coast live oak and sycamore stands and chaparral hillsides; parking requires a five dollar fee.

A multi-distance loop race on a flat, one-mile dirt and grass loop at a private ranch in Riverside. Options run from 3-hour events to a 100-mile race, with camping, relay teams, and event awards.

A 5k trail run at Black Star Canyon in Silverado, California, with mixed fire road and single track, 390 ft elevation gain, one aid station, a cupless policy, and pre-run access restricted to authorized days.

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