YOUR SWING.ENGINEERED.
Six AM tee work. Pitching tunnels. Exit velocity that college scouts actually open. This is where 14-year-olds become varsity starters — and varsity starters become prospects.
BUILT IN THE
CAGE.
Marcus T. · 16U · Tunnel 2
Hip rotation +18°. Launch angle corrected from −2° to 14°. Ready for varsity.
Jordan Alvarez
Illinois State
Caleb Okonkwo
Lewis Univ.
Tyler Wrzesinski
Triton College
Darius Monroe
Elmhurst Univ.
6 Tunnels.
Open 5:30 AM.
Downers Grove, IL
Velocity Lab
Rapsodo tracking · Spin rate · Break analysis
COACHED BY
PROS.
Every coach at Diamond played at the collegiate or professional level. They don't teach theory — they teach what worked on the field.
Ray Dominguez
Head Hitting Instructor
Played at University of Illinois · .341 BA, 2× All-Big Ten
Drafted Rd. 12 · Kansas City Royals org. · 4 seasons
Brianna Kowalczyk
Pitching & Mechanics Director
Played at Ball State · 1.87 ERA · 3× MAC Pitcher of the Week
Independent League · 3 seasons · Pitching coach certification NSCA
Terrence Mbeki
Speed & Athletic Development
Played at DePaul · .19 HR/AB · Speed & Agility specialist
CSCS certified · Former Frontier League outfielder · 2 seasons
PARENTS DON'T LIE.
NUMBERS DON'T EITHER.
“My son was hitting .210 JV. Eight weeks at Diamond — he's starting varsity and just committed to Lewis University. Ray saw things in his swing that nobody else caught.”
Linda Kowalski
Parent · Caleb Okonkwo, D2 Commit
“I drove him here at 5:15 AM every Tuesday for four months. Worth every dark morning. The coaches actually track your numbers — you can see the progress on screen after every session.”
Marcus Webb Sr.
Parent · Marcus Webb Jr., 16U Travel Ball
“I sent the highlight reel Diamond helped me put together to 12 schools. Got responses from 9 of them in two weeks. The film quality alone changed how coaches saw me.”
Jordan Alvarez
Player · Now at Illinois State
“As a travel ball coach I've rented cages all over the state. Diamond's tunnels are the cleanest, the equipment actually works, and they leave you alone to run your own practice. Perfect.”
Shawn Petersen
Head Coach · Northwest Express 14U
Cage Rental
WATCH OUR
PLAYERS' FILM.
Exit-velo compilations, swing mechanics breakdowns, and full game film — the stuff college coaches actually watch.
Watch Players' Film