Endurance Race Series

Endurance Race Series

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Avid trail racer, or trail beginner the ERS offers challenging beginner friendly courses, spectacular views, and family friendly environments.

Whether you are looking for scenic single track, or a challenging mountain course we have the race for you. Welcome to the Endurance Race Series, home to 12 total trail races in Colorado and California. Whether you are a competitive trail racer, an avid runner, or a trail beginner, our races have what you are looking for... 50K, Half Marathons, 10K, and NOW 24 Hour races! If you are looking for a

07/22/2026

On Saturday, July 25th, there's one aid station you won't want to run past. A big thank you to Raising Cane's for supporting the South Bay 24 Hour and keeping our runners fueled with fresh brewed sweet tea and lemonade from 11:00 am to 3:00 pm.

After hours of loops, a cold cup of sweet tea or lemonade can make all the difference, and we're grateful to have Raising Cane's helping take care of our runners during one of the biggest weekends of the season.

Be sure to stop by, grab a drink, and thank the Cane's team for being part of the South Bay 24 Hour. We couldn't do it without partners like them.

07/21/2026

The South Bay 24 Hour isn't just for ultrarunners. This year we're adding two new ways to be part of one of the most fun race weekends of the year.

The South Bay Social is perfect for runners and walkers who want to experience the event without the pressure of racing. Come out for some trail miles, meet new people, cheer on the runners, and enjoy the atmosphere. Every participant receives a finisher medal. Space is limited to just 50 participants.

Looking to complete the South Bay Trifecta, but not quite ready for the 12 Hour or 24 Hour? The Hefty Half is for you. At 15.86 miles, it's the perfect middle ground and earns you the third medal needed to complete the trifecta.

If you've been curious about South Bay, this is your chance to join the fun. Spots are limited, so grab yours before they're gone.

https://www.enduranceraceseries.com/south-bay

Photos from Endurance Race Series's post 07/17/2026

๐ŸŒ„ ERS Friday Trailhead: San Clemente Canyon

Tucked away in the middle of San Diego, San Clemente Canyon is one of those trails that surprises people the first time they run it. Just minutes from the city, the noise fades away and you're surrounded by trees, creek crossings, and miles of winding dirt trails.

The trail system offers a little bit of everything, including smooth dirt paths, flowing singletrack, rolling climbs, shaded canyon sections, and a few creek crossings to keep things interesting. It's a great place for easy recovery runs, weekday training, or linking together longer routes when you want to add some miles.

๐Ÿ“ Marian Bear Memorial Park (Genesee Ave)
๐Ÿƒโ€โ™‚๏ธ 3โ€“10+ mile route options
โ›ฐ๏ธ Easy to Moderate

It's one of those trails you'll find yourself coming back to again and again, especially when you're looking for shade and a break from the busier trail systems around San Diego. Grab a friend, explore a new route, and enjoy one of San Diego's hidden gems.

07/16/2026

Weโ€™re excited to welcome Strive Soda to the ERS family as our newest sponsor!

Strive is a hydration soda made for people who like to move. Each can combines bold soda flavor with electrolytes and organic wildflower honey, giving you something cold and refreshing to look forward to after the miles are done.

Youโ€™ll get a chance to try Strive at ERS events this season, so make sure you grab a can, kick back with your trail friends, and let us know which flavor is your favorite. We have a feeling these are going to hit pretty well after a few hours on the trails. ๐Ÿ˜Ž๐Ÿฅค

Welcome to the family, Strive Soda! Weโ€™re stoked to have you along for the season.

07/15/2026

COMMUNITY SPOTLIGHT ๐Ÿ”ฆ

After taking four years away from running, Danielle () found her way back in May 2025 and discovered a love for the trails along the way. Being outside in nature drew her in, but seeing complete strangers support and encourage each other is one of the things that keeps her coming back.

Her favorite ERS race is the Black Mountain Half Marathon. She loves the challenge of taking it on each time and the feeling of finally crossing that finish line after everything the course throws at her.

Her advice for anyone thinking about signing up for an ERS race is simple. ""Itโ€™s worth the challenge and the feeling you get when you push yourself.""

Weโ€™re glad you found your way back to running and into the ERS family, Danielle! ๐Ÿ‘

07/13/2026

The Jester would like to remind you that there is money on the line at South Bay 24 Hour. ๐Ÿ’ฐ๐Ÿคก

The first runner to hit 125 miles during the 24 hour race will take home a $1,500 prize purse provided by Death March Running Co! Thatโ€™s 125 miles of running, walking, snacking, questioning your decisions, finding a second wind, losing it again, and somehow continuing to move forward.

Think youโ€™ve got 125 miles in you?

๐Ÿ“… July 24 and 25, 2026
๐Ÿƒ South Bay 24 Hour
๐Ÿ’ฐ $1,500 to the first runner to reach 125 miles

The clock is ticking. Whoโ€™s going for it?
https://www.enduranceraceseries.com/south-bay

Photos from Endurance Race Series's post 07/10/2026

๐ŸŒ„ ERS Friday Trailhead: Rancho Bernardo & Lake Hodges

Lake Hodges is one of those trail systems where you can make the day as easy or as challenging as you want. Cruise along the lake, add in some rolling hills, or connect different sections of trail for a longer day of exploring. Terrain includes wide dirt trails, flowing singletrack, rolling hills, rocky sections, and plenty of scenic lake views.

๐Ÿ“ Piedras Pintadas Trailhead (West Bernardo Dr)
๐Ÿƒโ€โ™‚๏ธ 3โ€“20+ mile route options
โ›ฐ๏ธ Easy

Itโ€™s a great spot for easy weekday miles, long runs, race training, or simply spending a morning outside with friends. With so many route options to choose from, thereโ€™s always another section of trail to explore.

Pick a route, grab some friends, and go see where the trails take you.

Photos from Endurance Race Series's post 07/09/2026

๐Ÿ”ฅ JULY PRODUCTS OF THE MONTH

A little ERS gear for those cool mornings, post race hangs, and everything in between. This month weโ€™re featuring two ERS favorites from TRL Gear. Both are 25% off throughout the month of July.

๐Ÿ”๏ธ ERS Full Zip Hoodie
๐Ÿ”๏ธ ERS Half Zip Hoodie

Throw one on before an early morning run, keep it in your race bag for the finish line, or wear it around town while representing the ERS community. Grab yours before July is over.

๐Ÿ›’ TRLGear.shop

07/07/2026

Happy Birthday to ERS Ambassador and Santa Mujeres Run Club leader Virginia ()! ๐ŸŽ‰

Virginia is one of those people who makes the trail community feel a little more welcoming just by being part of it. Through , she helps bring runners together, encourages people to try new trails, and creates a space where friendships are built one run at a time.

As an ERS Ambassador, Virginia is always showing up, supporting other runners, sharing her love for the trails, and bringing her community along for the adventure. Weโ€™re lucky to have her as part of the ERS family and love seeing the impact she continues to make in the San Diego running community.

Happy Birthday, Virginia! We hope your day includes good trails, plenty of laughs, and your favorite people by your side. Show her some birthday love in the comments. ๐Ÿ‘‡๐ŸŽ‚

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