Monster Dash - Simi Valley
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Haunted Valley 5k 10k 15k Half Marathon
The Haunted Valley event at Rancho Simi Park in Simi Valley takes place on October 25, 2026. It offers multiple distance options on a marked, shared trail and road path. The course is open and participants share the path with pedestrians, cyclists, and other users.
Distances
- 5k one loop
- 10k two loops
- 15k three loops
- Half Marathon three 4.37 mile loops
Each loop includes an aid station. The 5k, 10k, and 15k use out and back loops on the trail. The half marathon is described as three repeating loops of 4.37 miles each and has a 3 hour 15 minute time limit.
Registration includes a custom finisher medal, a drawstring goodie bag, live results at finish, free photos linked to bib numbers, free videos and cinematic highlight reels, trophies and achievement badges, and access to an event app that tracks races and media. An assortment of snacks and samples is provided. Age group awards are available for pickup at the race only. Group discounts are available with automatic application for groups of three or more on Race Ascend. Parking is free at Rancho Simi Park with closest spaces near the Pickleball Courts and additional lots near the community pool and kickball fields. Visit the organization's website for the most recent information.
