Grade Your Pitch
Like the MLB Does
Free pitch grader that scores your fastball, curveball, slider, or changeup using published MLB Statcast benchmarks and a 20—80-style grading convention.
After you get your grade, chat directly with Brent about your pitch and how to improve it — free.
No account needed · Results in seconds
Scout language.
Benchmark sources. MLB comparisons use league-average velocity, spin rate, induced vertical break and horizontal break by pitch type, derived from published MLB Statcast data. Collegiate (“D1”) comparison values are internal TopVelocity estimates informed by publicly reported collegiate pitch data — they are approximations for training context, not an official collegiate dataset.
Supported pitches and metrics. Eight pitch types (4-seam fastball, sinker, cutter, changeup, slider, sweeper, curveball, splitter) across four metrics: velocity (mph), spin rate (rpm), induced vertical break and horizontal break (inches).
How grades are calculated. Your entered numbers are compared with the benchmark averages for your pitch type, and the distance from average (scaled by typical spread) is mapped onto a 20–80-style scale where 50 represents the benchmark average. The exact weighting is TopVelocity’s own implementation of this standard scouting convention.
Limitations. Grades are calculated from self-entered numbers, so measurement device, capture conditions and entry accuracy affect results. Benchmarks are adult professional averages and collegiate estimates — they are not age-adjusted, and a youth pitcher’s grade reflects distance from pro/college benchmarks, not peer ranking. Grades are educational estimates for training context — not official scouting evaluations, recruiting assessments, or medical evaluations of any kind.
Methodology last updated: August 27, 2026.
