Build Strength. Build Muscle. Feel Athletic Again.
OTB is right next door in Ayer — minutes from Littleton. Semi-private coaching, your own program, and Kyle coaching every workout. Max four to a session.
Littleton's loaded with big-box gyms and class studios — and plenty of people still aren't getting stronger. Crowded rooms and shared workouts off a screen aren't coaching. OTB is a small room with a real coach, a plan built for your body, and attention on every rep.
We're just minutes from Littleton, and the word's getting out. The adults who find us are usually done with the swipe-in-and-wander routine — they want a program built around their goals and injuries, and someone who holds them to it.
Built around your body, your history, and your goals — never a shared template off a screen.
Every session, the owner — not a rotating junior trainer. 20,000+ hours on the floor.
Real attention and hands-on cueing on every rep. You're never lost in a crowd of 25.
Post-rehab specialist coaching. We train around your bad back or knee, not through it.
OTB is at 12 Central Ave in Ayer — roughly a 10-minute drive from Littleton. Free parking right outside. Morning sessions Mon–Fri 5 AM–1 PM and Sat 6–11 AM.
📍 12 Central Ave · Ayer, MA 01432 Get directions from Littleton →Real members from Littleton and around the Nashoba Valley — part of 47 five-star Google reviews.
In one year at Ross Fitness I've made more progress than in years at other gyms. I used to join a gym, make progress, then get injured. Kyle designed the perfect program for my body — a full year of continuous training, and all my lower-back pain is gone.
Zack C. · LittletonExcellent overall experience. I wanted a trainer with real experience rehabbing athletic injury, and Ross Fitness delivered.
Matthew C. · LittletonOnly about a 10- to 12-minute drive (6–7 miles) — we're right next door at 12 Central Ave in Ayer, with free parking outside. Littleton's about as close as it gets.
Because a big gym sells you access; OTB gives you coaching. Max 4 per session, your own program, and Kyle on every rep. For a few extra minutes you get a completely different result.
Morning sessions only: Monday–Friday 5 AM–1 PM, Saturday 6–11 AM, closed Sunday. If you're an early riser who wants to train before the day takes over, it's a perfect fit.
That's exactly who this is built for. Every client starts with a movement screen, and Kyle is a post-rehab specialist — we train around your history, not through it.
OTB is premium, fully individualized, owner-coached strength coaching — not a big-box membership. We'll walk through the investment together at your in-person consult.
Train with me for two full weeks. If you don't feel stronger, more confident, and more capable than when you walked in, I refund every dollar. No questions, no fine print.
We coach members who drive in from across the area: Shirley, Groton, Harvard, Lunenburg.
Littleton resident? Tell us where you're starting from. We only take a handful of new clients at a time — if it looks like a fit, Kyle will reach out to set up your free in-person session at the gym. Takes 30 seconds to apply.