Red Peloton presents the TNT Criterium Series in Santa Rosa, California, held on select Tuesday nights throughout the racing season. You do not need a license to race in TNT. There are races for all levels of riders, from beginners who want to learn the basics in the Mentor Training Race to the Elite A Race which includes top riders from the region including pros at some races. Photo by Steven Curtis.
Tuesday Night Twilights (TNT!) Criteriums
A Northern California Bike Race Series Presented by Red Peloton
Sponsored by
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The TNT’s have been a staple of the North Bay for more than 20 years.
Red Peloton is proud to have taken over stewardship as the primary force behind the continuation of this amazing series.
Special thanks to Sonoma County Event Center at the Fairgrounds for supporting the TNT Criterium and Sonoma County bike racing!
IMPORTANT UPDATES:
Red Peloton has made a number of updates to make the TNTs more safe and easier to enjoy effective May 13, 2025. Most updates are reflected on this page, but you can view the full summary of updates on our TNT Update blog post.
Tuesday Night Twilight 2025 Schedule
The 2025 season will have 11 races at the Sonoma County Fairgrounds
Series Winner
For the 2025 race season, there will be a Series Winner for the A and B races. The best 8 races will count towards this overall Series winner. All other racers (C and Women) must upgrade to the next level race after 3 wins. So if you win 3 times in Cs, you will need to upgrade to the B race. If you win 3 times in the Women’s race you will need to upgrade to the C race.
The TNT criterium series is an annual bike racing series that is a Sonoma County tradition. Now presented by Red Peloton bike racing team and cycling club at the Sonoma County Fairgrounds April through September.
April – September 2025
DATES:
April 1, 22
May 6, 13, 20
June 3, 10, 17
August 19, 26
September 9
No racing license required.
Rain
In the event of rain, the road race events will be cancelled; wet pavement doesn’t make for safe racing. Rained out dates may be rescheduled. Visit this page for updates.
Nightly Schedule
NOTE: There have been multiple updates to the TNT schedule for 2025, including adding a Women’s Race as well as a Women-specific Mentor ride at the same time as the standard Mentor Ride, but on a separate part of the course!
WARMUP UPDATE/RACING MULTIPLE RACES
Riding other races to warm up is no longer allowed.
Due to the increased number of riders, we want to be able to let racers focus on their race and to help officials more easily track the race. A new, separate warmup area is being established.
Riders can still ride other higher up races to test/improve your fitness. For example if you race the C race, you can race the B race and/or A race to improve your skills, but you must pull out prior to the last 3 laps. You can only contest multiple races that you have paid for.
IMPORTANT PODIUM INFORMATION!
Celebrating our top finishers is important to us and our sponsors!
Top 3 placed riders MUST return to the registration area to attend Podium presentations prior to racing the next race. The next race WILL NOT begin until the podium photo is complete so top finishers please go to the podium as quickly as possible following your race.
5:20 to 5:40 pm: Mentor Training
20 min – Coaches present. All racers who want to learn how to crit.
5:20 to 5:40 pm: Women’s Mentor Training
20 min – Coaches present. All women racers who want to learn how to crit (held on a separate part of the course).
5:45 to 6:05 pm: C Race
20 min – Coaches present. Intended for Cat 5 & new racers.
6:10 to 6:35 pm: Women’s Race
25 min – No coaches. Women racers of all skill levels welcome!
6:40 to 7:10 pm: B Race
30 min – No coaches. Intended for Cat 3 & 4 Men
7:15 to 7:50 pm: A Race
35 min – No coaches. Intended for Cat 2 & 3 and Pro, 1 & 2
* Race durations may be adjusted to longer or shorter based on daylight availability.
Women’s criterium podium at Tuesday Night Twilights criterium bike race series in Northern California.
Longtime Red Peloton member and leader – including past President – Javier Sanchez competing at Tuesday Night Twilights criterium series. Javi has played a critical role in the continuation of many Northern California cycling events including TNT.
Location
All races are at the Sonoma County Fairgrounds.
Park in the Northeast parking lot off Bennett Valley Road or by entering Gate 4 off of Brookwood Ave.
Registration
Registration is OPEN!
IMPORTANT REGISTRATION UPDATE:
You must check in at the registration table before racing. For safety, we have relocated the registration (for same day registration)/check-in table to be just past the arches on the East side of the course.
Registration through Bike Monkey
Volunteers
Volunteers are vital for the success of bike racing! If you can help us run this event please contact us.
Volunteer help is needed with:
- Corner marshaling
- 1. Set up and tear down
- 2. Advertising, and equipment maintenance
