| January 2 | The Happy Kids Duathlon #1 | Register Online | Print & Send |
| January 2 | 2027 New Year’s Duathlon and 5K Run/Walk | Register Online | Print & Send |
| January 9 | 2027 IPA Beer 5K/12K Trail Runs | Register Online | Print & Send |
| January 10 | 2027 MTB Kickstart – Cross Country Mountain Bike Racing | Register Online | Print & Send |
| January 23 | 2027 Gumby 10K and 5K | Register Online | Print & Send |
| January 23 | The Dirty Duathlon | Register Online | Print & Send |
| January 24 | 2027 MTB Classic – Cross Country Mountain Bike Racing | Register Online | Print & Send |
| February 6 | 2027 Escape from Folsom 10 Miler & 5K | Register Online | Print & Send |
| February 6 | The Happy Kids Duathlon #2 | Register Online | Print & Send |
| February 7 | The MTB Challenge – Cross Country Mountain Bike Racing | Register Online | Print & Send |
| February 20 | Lost Trail 5K & Half Marathon | Register Online | Print & Send |
| February 21 | MTB Madness–Cross-Country Mountain Bike Racing | Register Online | Print & Send |
| March 6 | Chanoko 31K, 10K and 5K trail runs | Register Online | Print & Send |
| March 7 | MTB Showdown–Cross-Country Mountain Bike Racing | Register Online | Print & Send |
| March 20 | The Mighty Dog Trail Runs | Register Online | Print & Send |
| March 21 | MTB Championship–Cross-Country Mountain Bike Racing | Register Online | Print & Send |
| April 10 | The 25th Annual ICE Breaker Triathlon and Super Sprint Triathlon | Register Online | Print & Send |
| May 8 | The Folsom Lake International Triathlon | Register Online | Print & Send |
| May 9 | Folsom Lake Sprint & Super Sprint Triathlons | Register Online | Print & Send |
| June 5 | Tri for Real Triathlon, Aquabike and Super Sprint Triathlon #1 | Register Online | Print & Send |
| June 6 | TRI for Kids Triathlon #1 | Register Online | Print & Send |
| June 6 | TRI for FUN Triathlon #1 and DU for FUN Duathlon #1 | Register Online | Print & Send |
| July 10 | Tri for Real Triathlon, Aquabike and Super Sprint Triathlon #2 | Register Online | Print & Send |
| July 11 | TRI for FUN Triathlon #2 and DU for FUN Duathlon #2 | Register Online | Print & Send |
| July 11 | Tri for Kids Triathlon #2 | Register Online | Print & Send |
| July 24 | Folsom Swim Run | Register Online | Print & Send |
