Stats, scholarships, and transfers — earned by players who did the work.
Indy Ball → Detroit Tigers
Chase Wells
Indy Ball → Signed with the Detroit Tigers
"Before working with Jantzen, I felt tight and unable to get a good, hard, competitive swing off. I felt like I was playing defense at the plate from the beginning. I definitely felt like I was put into better positions to attack the ball and do damage on mistake pitches."
Indy Ball → Philadelphia Phillies
Daunte Stuart
4 HR in 6 Games · Signed with the Philadelphia Phillies
“I’m doing the piggyback every day. I could just tell the balls come off harder — I could just see the difference. Four home runs in six games.”
Pitcher-Only at JUCO → 2-Way Player
Spencer Dailey
Pitcher-Only → 2-Way Player at Upper Iowa University · +5 MPH Bat Speed
"My swing after working with Jantzen has felt more easy and repeatable while adding an average of 5 mph of bat speed. I have felt more confident and free in the box than ever before."
NAIA → Ohio State
Brady Lester
NAIA → Transferred to Ohio State · ⭐⭐⭐⭐⭐ Google Review
"It's not just drills. We talk through my approach, my swing thoughts, and the mental side of hitting. The podcast-style Zoom calls with pro players and coaches have been unreal — hearing what it actually takes to reach the next level has been eye-opening. Witte's experience shows in everything he does."
JUCO → 4-Year Scholarship
Parker Sobiesiak
.209 → .421 AVG in Conference · .468 OBP · .614 SLG · 4-Year Scholarship
"I was so far down in the dumps and I found you as a resource. This is really life-changing."
On the verge of quitting. Finished .350 avg, .421 in conference. Earned a 4-year scholarship.
D1 — Arizona State
Dom
.220 / 4 HR → .275 / 10 HR · Transferred to Arizona State
Mid-season turnaround. 10 home runs and a D1 transfer to Arizona State.
JUCO — Single Season HR & RBI Record Holder
Tony Woodie
3 HR → 10 HR · Single Season HR & RBI Record at His College
"My experience has been great. There are over 50 guys in here and still somehow it feels like I'm the only one getting trained. This is ran really well and I'm getting better every day."
JUCO — Committed to Oklahoma Wesleyan University
Saul Trevino
Line Drive % 41% → 57% · Committed to Oklahoma Wesleyan
"My line drive percentage went from 41 to 57. Miss hit a ball and still got a double — baseball's just more fun now."
Alma (Saul's mom): "His aura is bigger. He knows where he's at and what he's doing. When he looks comfortable, he plays phenomenal."
High School — Kentucky
Brady Greene
"Best My Swing Has Ever Felt" · ⭐⭐⭐⭐⭐ Google Review
"It took hitting from 10 different steps to — all I have to think about now is hit the ball. My head is so much more calm. Some of the farthest balls I've ever hit in my life. Just constantly."
Football coach told him he had a Ken Griffey Jr. swing after 3 months.
High School
Max Fraizer
87 MPH EV PR → Beat It on Day 1 of Week 2 · Distance PR Same Day
"I ended up hitting a distance PR and an exit velocity PR in the same day after a 30-minute call. I've gone from a pushy, scared hitter to more confident than ever, crushing the ball to all sides of the field."
High School
Brooks Burdine
Air Force Academy Scholarship + MLB Draft Letters
"Got my feels back in one session."
High School | Massachusetts
Ryan Duffy
Batting 3-4 Hole Playing Up a Level at 14
"Now that I can just trust it — I don't have to worry about it. I look confident walking into the box and they throw me curveballs. They think they can get me out with them. They can't."
Ryan's dad: "He learned so much from Jantzen, tells me what we need to do. I do what he tells me. It's been amazing seeing the progress."
High School
Caden Niederhaus
.220 → .400+ Batting Average
One of the biggest turnarounds in the program.
D2 — University of Jamestown
Ryan Foster
2 Hits All of Last Spring → Barreling Every Game
"I might have gotten one or two hits all of last spring. Turning around this year, I don't think there was a game where I didn't catch a barrel."
Travis Foster (Ryan's dad): "His approach is spot on — he tailors the program to the individual. He takes the player's natural swing and adds small, incremental tweaks to get the most out of it versus trying to rebuild the entire swing. Buy in is 100%."
High School — Senior Year
Cade (Barney Wiley's Son)
.474 Average — Led Team Senior Year
"Jantzen has been a mainstay in my son's development for the past 10 years. He keeps it simple, to the point, and fun — and the improvement both from the swing but more importantly the mindset of hitting has been amazing. Highly recommend on all fronts."
— Barney Wiley, Baseball Dad (10 Years)