Mar, 2026

Sun
Mon
Tue
Wed
Thu
Fri
Sat
12
260302
3
260303
4
260304
5
260305
6
260306
Casey S
7
260307
8
Kim L
9
260309
10
260310
11
260311
Rebekah L
12
260312
13
260313
14
260314
Katie C
1516
260316
17
260317
Yasmin
18
260318
Ginger
19
260319
20
260320
21
260321
2223
260323
24
260324
25
260325
26
260326
27
260327
28
260328
2930
260330
31
260331
Apr 1
260401
Apr 2
260402
Apr 3
260403
Apr 4
530-217-3154
G-Theory CrossFit
345 Sacramento Street Unit-G
Auburn, CA 95603 (view larger map)


4.9

36 reviews

Loren Schneider


8 months ago

G-Theory CrossFit is the kind of gym where you can tell people genuinely care. The coaching is thoughtful and approachable, with clear explanations and intentional scaling options so everyone can train hard at their own level. The workouts are ch

GregAcq


a month ago

Casey, Dave and crew are all awesome coaches. Workout programming is next level and the gym community is friendly and supportive. Benchmark set!

Lorie Pinion


3 months ago

When you think of CrossFit you probably don't immediately think of a 40 year old soccer mom, I know I didn't. So when I won a free trial month for G-Theory at a Bingo fundraiser (is that not the most 40 year old thing you've ever heard?!) I thoug

Angela Acquistapace


a month ago

Coaching is phenomenal. Class sizes are small enough for individual help but large enough to be fun. Members are welcoming and encouraging. Programing is well planned and challenging for all levels.

Matthew Smith


10 months ago

I’ve been part of a handful of gyms over the years, and G Theory CrossFit has been the best! The community is amazing, and whether you’re new or experienced, you instantly feel welcomed. It honestly feels like a family, which is something Iâ€