10K races near Redlands

Big Bear Lake becomes the center for ultra-running with the HOKA Kodiak Ultra Marathons by UTMB, an event that has shown significant growth since 2023. This UTMB World Series race provides the hospitality of a mountain community, attracting thousands of participants and becoming a notable fixture on the ultra-running calendar. The start/finish line is in downtown Big Bear Lake, serving as a central hub for spectators to support the athletes. This race is particularly welcoming for first-time ultra-runners and those new to trail running, offering a serious yet supportive setting for challenging oneself on the trails.

Luz y Vida is a Día de los Muertos run/walk in Riverside, California, with 5k, 10k, 15k, and half marathon options from Ryan Bonaminio Park. A Better World Running organizes it, and the setup is low-key: bib pickup happens the morning of the race, all distances start early, and registration includes a custom finisher medal, a drawstring goodie bag, free photos, free videos, posted results, snacks, and samples. The course uses a marked open path shared with pedestrians, runners, and cyclists, so this is not a closed-road race. The 5k is an out-and-back, the 10k repeats that loop twice, the 15k repeats it three times, and the half marathon uses three 4.36-mile loops. Aid is available at the turnaround and start/finish area with water, Gatorade, and Gu gels. Strollers are allowed, dogs are not, and half marathoners get a 3-hour-15-minute limit with early starts available by request.

The MVRRC Turkey Run begins at Lake Perris Dam, offering participants three distance options: a 1-mile for children, a 5K, and a 10K. This club race has a Thanksgiving theme. The youth 1-mile starts in the morning, followed shortly by the 5K and 10K. The 1-mile is for ages 5 to 12; the 5K and 10K are open to runners 12 and older. The event is included in the MVRRC race series and is in its 13th year. Race-day logistics are straightforward: parking is available at the Fisherman Lot and Lot 1. Online registration remains open until the day before the event, with on-site registration offered before the races. Entry fees are modest, with the kids’ mile having a different price than the 5K and 10K. Additionally, a Lake Perris vehicle entrance fee is required at the gate. An awards ceremony concludes the morning after the races.

The Reindeer Run Riverside is a holiday-season run/walk held at Ryan Bonaminio Park in Riverside, California, offering 5k, 10k, 15k, and half marathon distances. The start and finish are located at the park's far end. Bib pickup occurs at the park on weekend mornings, with free parking available in the park lot and along Tequesquite Avenue. The routes consist of marked out-and-back loops on a shared path, meaning participants will encounter other pedestrians, runners, and cyclists. The 5k is a single out-and-back, the 10k is two repetitions of the 5k loop, the 15k is three repetitions, and the half marathon uses three 4.36-mile loops with a 3:15 time limit. Restrooms are situated near the start and finish. The aid station at the turnaround point provides water, Gatorade, and Gu gels. Strollers are permitted, but dogs are not. Finishers receive a custom medal, a goodie bag, complimentary photos and videos, snacks, and results posted within 12 to 24 hours.

The Citrus Heritage Run begins at Arlington Heights Sports Park in Riverside, California, offering a half marathon, 10K, 5K, and a 1-mile kids race for participants 12 and under. The longer races commence early, with all distances concluding by late morning, structuring the event as a focused race-day schedule rather than an extended festival. The course winds through the orange groves of California Citrus State Historic Park, allowing runners to experience the scent of citrus and orange blossoms while taking in views of the nearby mountains and the Riverside skyline. The race attracts significant local attention, with every distance having sold out in a past event. Participants receive long-sleeve tech shirts, finisher medals, and age-group awards. Live bands perform along the course, hydration stations are provided, and the finish area offers fresh orange juice from a local grove, hot food, beer, and mimosas.

Bedrock Valley Trail Runs is a spring trail race series in Hemet, California, held around Diamond Valley Lake. All courses are on unpaved trails. The series includes a full marathon, half marathon, 15K, 10K, Stroller 5K, and a 1 Mile Kid's Fun Run, catering to trail runners and families, not just long-distance racers. The race begins early and maintains a small field with a 400-participant limit and no prize money. The location has a unique history: the lake area is situated on bedrock where remains of hundreds of mastodons and other prehistoric animals were discovered. The event has been held annually since 2012 as an American Trail Running Association member race.

Run on Memorial Day on a flat, fast, out-and-back course near Diamond Valley Lake. This race is for everyone, from seasoned runners to beginners, and the whole family. Finishers receive custom medals and technical shirts. The course is near Southern California wineries and Old Town Temecula.