Double Peak Challenge 10k

The Double Peak Challenge 10k returns to San Marcos, California on September 26th, inviting runners from across the region for a challenging course with panoramic views of North County's highest point. This year marks the event’s eleventh anniversary and continues its tradition as one of the most anticipated running events in the area.
On race morning, participants gather at San Elijo Park before setting out along Elfin Forest Road to begin their ascent up Double Peak. The weather forecast for September 26th predicts a typical California autumn day with temperatures ranging from an average low of 16.9°C to a high of 27.1°C and feels like conditions around 22°C due to moderate humidity levels averaging at 73.5%. There is also a slight chance of rainfall, estimated at approximately 0.5mm.
Since its inception in 2016, the Double Peak Challenge has grown into an integral part of San Marcos's running community and beyond. Each year sees hundreds of runners participating across all age groups. The race not only serves as a competitive event but also raises funds for local youth programs through sponsorship partnerships with businesses supporting education initiatives.
The course itself begins at the base of Double Peak in San Elijo Park, leading participants along Elfin Forest Road towards their 1,176-foot elevation gain up to reach Double Peak's summit. The terrain is marked by a hard and dry surface trail that stretches for about two miles round trip from start to finish line before descending back down the same path. Along with this challenging climb, runners will encounter aid stations strategically placed throughout offering water and energy drinks.
Weather on race day in September tends to be comfortable without excessive heat or humidity; however, early morning temperatures may drop below 16°C making layers advisable for optimal comfort during warm-ups. Additionally, winds blowing at an average speed of around six miles per hour can create a cool breeze against exposed skin which might feel refreshing but also necessitate windproof outerwear.
The Double Peak Challenge offers three distinct race options: the main 10k event and two shorter alternatives designed to accommodate different age groups while ensuring everyone has access to giveaways such as bib numbers, wooden medals along with shirts for adult participants. The Kids Trail Trot provides young children aged between four and twelve years an opportunity to experience running on trails in a fun atmosphere.
Registration can be completed online via the official site at https://ultrasignup.com/register.aspx?did=136488 where runners will find information about fees ($60 for 10k, $30 for 5K) and deadlines. Bib pickup details are available on race day morning from 7:00 am to 9:00 am at the start location - San Elijo Park located off Elfin Forest Road where participants must present a government-issued ID or email confirmation of registration.
Starting early in September, all runners should plan their arrival knowing that the starting line address is 1105 Elfin Forest Rd. No age restrictions apply other than those set by each individual race category; however, children participating in the Kids Trail Trot require adult supervision until they reach the designated finish area.

- 10K | fee=$60.00
- 5K | fee=$30.00
- Kids Trail Trot
The Double Peak Challenge 10k is set to take place in San Marcos, California on September 26th, offering runners the chance to tackle a scenic and challenging course while supporting local youth programs through their participation.