// COACHING STAFF
5 ON THE FLOOR · CF-L1+L2 · USAW · RD ·
23 COMBINED YEARS COACHING ·
// COACHING STAFF
5 ON THE FLOOR · CF-L1+L2 · USAW · RD ·
23 COMBINED YEARS COACHING ·
// 03 — coaching staff · 2026 roster

Five coaches.
Every one lifts.

Combined twenty-three years on the floor. Two USAW certified, one registered dietitian, one USATF Level 1, two former competitive athletes. The coaches you meet at intake are the same ones standing behind your bar three months later.

5
Coaches on staff
23y
Combined years
CF-L2
Highest cert
USAW
L2 Oly coach
1RD
Registered dietitian
// 01 — meet the staff

Long bios.
Real numbers.

Cert level on the badge. Sport background, specialty, and current PRs in the body. The classes each coach owns are listed under the photo.

CF-L2 · 12y
// classesMon · Wed · Fri · 5:30 + 5:00
STAFF 01Head coach · co-founder

Reyna Voss

Head coach · programmer · CrossFit Level 2

Reyna co-founded Caldera in 2014 and has been on the floor every week since. She programs the weekly WOD board, runs new-member intake, and coaches the 5:30 AM and 5 PM classes Mon/Wed/Fri. Background — D1 rower at OSU, 2× regional CrossFit qualifier (2018, 2019). She's the coach who'll spend ten extra minutes on your hip mobility before deadlift day.

CF-L2USAW-L1D1 rowerRegional qualifier
Years
12y
Back squat
155kg
Snatch
88kg
"Fran"
3:01
STAFF 02Olympic lifting lead

Jakob Cerny

Olympic lifting lead · USA Weightlifting Level 2 · CF-L1

Jakob runs the Tuesday and Saturday Oly blocks. National-level lifter on the masters circuit (81 kg class), USAW Level 2 since 2021, and a CrossFit Level 1 who happily coaches the 6:30 PM general class four nights a week. Background — collegiate gymnast turned weightlifter at twenty-eight after a shoulder reconstruction. Lifters who train under him don't get pretty snatches; they get strong ones that don't break down at 90%.

USAW-L2CF-L1Masters nationalEx-gymnast
Years
7y
Snatch
142kg
C&J
178kg
FS
202kg
USAW-L2
// classesTue · Sat oly · Mon-Thu 6:30 PM
RD · CF-L1
// classesMon · Wed · Fri · 6:30 AM
STAFF 03Nutrition · strength coach

Rosa Petrov

Strength coach · Registered Dietitian · CF-L1 · Pn1

Rosa heads the nutrition coaching add-on and coaches the 6:30 AM class three days a week. RD since 2019, Precision Nutrition Level 1 since 2020, CF-L1 since 2022. She does the thing nobody else on staff does — she meets with members monthly to look at body comp, macro adherence, and sleep, and adjusts the macro target every cycle. Most members who plateau hire Rosa, and most of them break the plateau within twelve weeks.

RDPn1CF-L1Macro coaching
Years
5y
Members
42active
Avg loss
8.2kg
"Cindy"
22rds
STAFF 04Endurance lead

Mateo Ahern

Endurance lead · USATF Level 1 · CF-L1

Mateo programs and coaches the Wednesday and Saturday endurance class. USATF Level 1, CF-L1, sub-3-hour marathoner, and a four-time Hyrox podium finisher. He also coaches the kids and teen tracks Tuesday and Thursday afternoons. Members who want their conditioning to do something — get them through a half-Ironman or just survive a 5K with their kids — train with Mateo.

USATF-L1CF-L1Sub-3 marathon4× Hyrox podium
Years
4y
Marathon
2:54
5K
16:42
Hyrox
59:18
USATF-L1
// classesWed · Sat endurance · kids/teens
CF-L1 · DPT
// 1-on-1Movement screen · referral basis
STAFF 05Movement coach · DPT

Devon Akiyama

Movement coach · Doctor of Physical Therapy · CF-L1 · FRC

Devon is the staff DPT — a licensed physical therapist with Functional Range Conditioning credentials. He doesn't run a class, but every member with an injury or return-to-lift question goes through him. He sees members 1-on-1 by referral from the other four coaches, runs the Sunday mobility class once a month, and writes the gym's return-to-lift protocols.

DPTFRCCF-L1Return-to-lift
Years (DPT)
9y
Members seen
128'25
Mob class
Monthly
Format
1:1refer.
// 02 — what the floor looks like

12,000 sq ft.
Purpose-built.

Twelve lifting platforms, two squat racks, a quarter-mile of running track behind the gym, and the original calderas that named the place.

// lifting floor
// olympic rack
// rig + rings
// outdoor turf

Meet a coach.
Run a free intro.

The free intro is a sixty-minute session with whichever coach is on the floor — usually Reyna, sometimes Rosa. Movement screen, working sets, and a real conversation. No pitch, no contract.

Book free intro →