
Green Valley Lake, United States of America · Saturday 1 August 2026
🌲 GREEN VALLEY LAKE 5K / 10K / HALF MARATHON Saturday, August 2, 2025 Green Valley Lake, CA (Between Running Springs & Big Bear in the San Bernardino Mountains) 🕖 START TIMES 7:00 AM: Early Start Half Marathon (for those expecting to take 3.75 hours) 7:30 AM: Standard Half Marathon Start 8:30 AM: Mass Start for 5K & 10K 🏞 COURSE HIGHLIGHTS This is a breathtaking mountain race in the heart of the San Bernardino National Forest! Start with a scenic ¾-mile out-and-back along the lake Climb gradually up Green Valley Lake Rd and onto a forest service road Enjoy a 400 ft elevation gain to an overlook at the 5K turnaround 10K and Half Marathon continue along rolling terrain on FS Road 2N13, through pine forests and rocky vistas Course is part paved (1.5 miles), then transitions to dirt roads and trail Water & aid stations every 1.5 miles Get ready for that fresh air, mountain-made, above-the-clouds experience! 📍 LOCATION Green Valley Lake – Just 40 minutes from Redlands, located off Hwy 18 between Lake Arrowhead and Big Bear. Post-race activities take place in the Downtown Community Garden on Main Street. Race HQ / Packet Pickup: Black Dog Social Club, 33231 Green Valley Lake Rd. 🥇 WHAT YOU GET Custom, high-quality event t-shirt Unique, huge finisher medal Top 3 overall awards per race distance Age group medals (3 deep in 5-year spans up to 80 ) Chip timing by Itz About Time 🏆 Age Groups: 10 & under, 11–14, 15–19, 20–24, 25–29, 30–34, 35–39, 40–44, 45–49, 50–54, 55–59, 60–64, 65–69, 70–74, 75–79, 80 (Separate overall awards for each race distance.) 🏁 AWARDS CEREMONY – COMMUNITY GARDEN 9:15 AM – 5K Awards 9:30 AM – 10K Awards 9:45 AM – Half Marathon Awards 🧁 FOOD & FUN Coffee ,pastries , street tacos, and more available for purchase packet pickup and race morning Food available for purchase post-race Live music at the Community Garden post-race Hang out in a welcoming mountain community with big hometown vibes
Adjusted Time
1:40:47
Time difference: -4.2 minutes compared to a flat, road, temperate course.
Green Valley Lake 5k/10k/& Half Marathon is a half marathon held in Green Valley Lake, United States of America, scheduled for Saturday 1 August 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 0m above sea level. For registration and full race details, visit the official Green Valley Lake 5k/10k/& Half Marathon website.
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 0m to 0m above sea level — a 0m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Green Valley Lake 5k/10k/& Half Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Green Valley Lake 5k/10k/& Half Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Green Valley Lake 5k/10k/& Half Marathon against other half marathons to find the right race for your goals.
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