Introducing PitchIQ - Contact Metrics at all 4 levels!
Why PitchIQ Matters
For years, the conversation around minor league hitters has been incomplete. We’ve had batting average. We’ve had OPS. We’ve had wRC+ and ISO and stolen bases. What we haven’t had — at least not publicly, at least not at scale — is the discipline data. The pitch-level data. The stuff that tells you not just what a hitter did, but how he did it and why it’s going to hold up.
That changes today.
PitchIQ is a pitch intelligence leaderboard covering all four levels of affiliated minor league baseball — Triple-A, Double-A, High-A, and Low-A — tracking every qualifying batter who has seen 75 or more pitches this season. It updates automatically every morning. It is, to my knowledge, the most comprehensive publicly available pitch discipline resource for MiLB hitters that exists right now. I could be wrong and you can point me in the right direction - but most of what I see and find is for Low-A and Triple-A only.
Here is why that matters.
The hit tool is a starting point, not a conclusion. A prospect hitting .320 in Double-A is interesting. A prospect hitting .320 in Double-A with a 38% Z-Contact% and a 42% O-Swing% is a red flag. The average tells you what happened. The discipline data tells you whether it’s real. PitchIQ gives you the second layer of the conversation that batting lines alone can never provide.
Swing decisions are the closest thing we have to a leading indicator. O-Swing% — how often a hitter chases pitches outside the zone — is one of the most predictive stats in baseball at any level. Hitters who chase at elite rates almost never sustain offensive production as they climb. Hitters who demonstrate elite zone discrimination at 19 years old in Low-A are sending a signal that most prospect coverage completely ignores. PitchIQ surfaces that signal every single day.
SwStr%, K%, and BB% are now exact at every level. These numbers are calculated directly from umpire call codes — the actual ball, strike, swing, and contact decisions recorded in real time — not from pitch coordinates. That means they carry zero measurement error. A 14% SwStr% at High-A is as reliable as a 14% SwStr% in the major leagues. For the first time, you can compare whiff rates across all four MiLB levels with full confidence in the accuracy of the number.
The transparency is built in. PitchIQ doesn’t hide its methodology. Every limitation is documented directly on the site — the difference between Statcast-quality data at Triple-A and Low-A versus the manually stringed coordinate data at Double-A and High-A, the adjustment ranges you should apply when reading Z-Contact% and O-Swing% at the lower levels, the research behind the accuracy estimates. You know exactly what you’re looking at and exactly how much to trust it.
This resource grows more valuable as the season goes on. Right now we have a month of data. By July we’ll have four months. By September the sample sizes will be large enough to make definitive statements about swing decisions at every level for every qualifying prospect in affiliated baseball. The players who show up at the top of the O-Swing% leaderboard in September — the ones who have demonstrated elite chase discipline across 400, 500, 600 pitches — are the players whose plate approach is genuinely real. Not a hot streak. Not a small sample. A documented, repeatable skill.
Here is the Zone Classification Methodology & Accuracy pulled straight from the site.
Here is an example of what the top 10 looks like at Double-A — descending order of Z-Contact%:
This will update every morning at around 9 am with the previous days stats locked in and will be ever-changing and ever-growing by the day as the season goes on. You can search by organization or by player and filter by level, as well - to help you find and track “your guys.” Bookmark it and check it as often as often as you need. Make sure to read through the Methodology & Accuracy so you get a better understanding of the directional relationships at each level.
Below is the link to the URL where subscribers get first and full access to the site. Please consider subscribing to help support what we’re building here at ProspectTilt and to benefit from all the resources we have planned to share with you as the season progresses. Enjoy!