ATR-25 C.S.A.U.P
https://youtu.be/PB9KPgjZT8s ATR-25 stands for Around the Region with 12 AOs. We are challenging All F3 Pax to travel to all 12 Naperville AOs in the Month of February and March…
A Mid Winters CSAUP 13.1 Run – 2025
In 2023 a couple of PAX got together for an out and back 13.1 mile (ish) run starting at Two Wolves, Running Through The Outpost and ending up at The…
Get Scrooged This December
Son of Scrooged is F3 Naperville's Annual Winter Running and Rucking Challenge December 1st to December 30th, 2024In 1843 Charles Dickens wrote A Christmas Carol. The story of Ebeneezer Scrooge,a…
F324 2024 Recap
The annual F324 C.S.A.U.P. Fitness Event, held on October 26, 2024, was an overwhelming success. Over the course of 24 grueling workouts, 94 Pax showed up and posted a remarkable…
Sign up for the 2025 ABOMINABLE SNOW RACE
Arctic Crawl Biggest team Barricades Biggest Team Again! Avalanche Part II Help defend our title of biggest team for the 4th year on January…
F324 on October 26, 2024
The F324 Completely Stupid and Utterly Pointless Fitness Challenge will be held in Naperville, IL, on October 26, 2024. This grueling event consists of 24 back-to-back 45-minute workouts, starting at…
IronPax 2024 Is Here
Iron PAX 2024 is coming!!! Who: All F3 PAX Accross the USA and World! What: Iron Pax (IPC) is a F3 Nationwide competition that takes place over a span of 5 consecutive weeks.…
The RECLAIM13 15,000-Mile Challenge by F3 GREATER CHICAGO
Please check out this meaningful Fitness Challenge/Awareness Campaign coming to Chicagoland October 6th - 12th that will help Reclaim13 and their fight against child sex trafficking. The last several years…
2024 Olympic Games – July 20 to July 27
Get up and Hustle! From July 20 - July 27, 2024 an F3 Naperville Central AO will feature a fun fitness event inspired by the 2024 Summer Olympic Games being…
A Mid Winters CSAUP 13.1 Run
Last year a couple of PAX got together for an out and back 13.1 mile (ish) run starting at Two Wolves, Running Through The Outpost and ending up at The…