About the Jurassic Jaunt - 5K, 10K, 10M, and Half Marathon
Alamitos Beach is the start, and the route heads out along the waterfront path from there. It is an open path, shared with pedestrians and cyclists, so runners stay to the right. Turns are marked with chalk and flags. The shorter and longer distances all use overlapping out-and-back sections of the same flat shoreline stretch.
Early bib pickup is the evening before at a local running store. Race-morning pickup opens at the start area before the first wave. Parking is available in the adjacent lot, with free street parking as an alternative. The finish area has water, sports drink, gels, and fruit snacks set out.
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Finish-Time Stats
Going by the 2025 results, this is a small, friendly field, with a competitive front end and a big recreational middle.
13.1 Miles · 2025 results
51finishers
1:30:00winner
2:31:10median
3:20:00cutoff
Top 3: Andrew Partyka (1:30:00) · C.M. FILES (1:37:41) · Jonathon Rojo (1:41:01)
5K · 2025 results
46finishers
19:19winner
46:45median
1:10:30cutoff
Top 3: Aaron Terrones (19:19) · William Weiss (23:55) · Eric Rodriguez (24:12)
10K · 2025 results
25finishers
43:24winner
1:11:50median
3:20:00cutoff
Top 3: Marvin Mabait (43:24) · Victor Hugo (44:58) · Angel Andrade (45:08)
· 2025 results
5finishers
2:00:42winner
2:01:15median
2:29:00cutoff
Top 3: Alejandra Gutierrez (2:00:42) · Liz Lengyel (2:01:15) · Spencer Albuquerque (2:01:15)
The Jurassic Jaunt - 5K, 10K, 10M, and Half Marathon has been held every year since at least 2022. That is as far back as RunSignup's records for this race go, so it may well be older.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Distances & Start Times
5K9/19/2026 07:30$25
10K9/19/2026 07:30$29
10 Miler9/19/2026 07:00$35
13.1 Miles9/19/2026 07:00$39
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