Marathons within 50 mi of Diamond Bar, CA
7 races
2026 First Responders 1M 5K 10K 13.1 26.2
Los Angeles, CA2 wks out$25
- 1 mi
- 5K
- 10K
- Half
- Marathon
$25View details
SOCAL River Marathon - 26.2 - 13.1 - 10K - 5K
Huntington Beach, CA20 wks outfrom $40
- 5K
- 10K
- Half
- Marathon
from $40View details
2027 SFA Los Angeles Marathon Team
Los Angeles, CA21 wks outRegistration closed
- Marathon
Registration closedView details
Bedrock Valley Trail Runs
Hemet, CA25 wks outfrom $15
- 1 mi
- 5K
- 10K
- 9.3 mi
- Marathon
- +4
from $15View details
Run4Kids Ultra Running Party
Corona, CA27 wks outfrom $59
- Marathon
- 50 mi
- 100 mi
from $59View details
The Hoag OC Marathon Running Festival
Costa Mesa, CA29 wks outfrom $0
- 5K
- Half
- Marathon
from $0View details
Griffith Park Trail Marathon Relay & 8K
Los Angeles, CA34 wks outRegistration closed
- 5 mi
- Marathon
Registration closedView details
That’s every race for this search.