Maven Baseball vs Stuff or Not

Know exactly where you stand. Maven is the gold standard in baseball player assessment. Built by former pro players and powered by elite-level biomechanics data, the Maven app puts your complete performance picture in your pocket. No guesswork. No generic advice. Just objective data that tells you exactly where you're strong, where you need work, and what to do about it. YOUR MAVEN SCORE Review your comprehensive hitting and pitching assessments. See how you stack up against MLB, elite college, and amateur benchmarks. Track progress over time with clear, color-coded performance indicators across every pillar of your game—Gather, Bat Path, Ground, and Motor for hitters; Lower Half, Sequencing, and Arm Action for pitchers. VIDEO ANALYSIS Watch your swing or delivery with pro-level analysis. Compare your mechanics side-by-side against past assessments or elite benchmarks. See exactly what changed and what still needs work. PERSONALIZED DRILL LIBRARY Access targeted drills that connect directly to your assessment results. Every drill is tagged to specific metrics—so you're always working on what actually matters, not just filling time. TRAINING PROGRAMS Follow coach-prescribed programs. Complete sessions, track progress, and communicate directly with your training staff. Everything synced, nothing lost. FOR PLAYERS Whether you're chasing a college scholarship, preparing for the draft, or staying sharp at the pro level—Maven gives you the clarity to train with purpose. FOR COACHES Manage your roster, assign programs, and track player development with objective data backing every decision. The best players find Maven because we give them something no one else can: total clarity. Don't guess. Assess.

The baseball pitching statistic known as Stuff+ compares the physical characteristics of a pitch (Release point, velocity, spin vector, movement profile) to the expected run value. In other words, how many runs are scored on a particular type of pitch? Every Stuff-type pitch grader uses a different combination of pitch variables, sometimes including pitch location, arsenal information, batter attributes (like handedness), and even pitch sequence. Usually, the ultimate goal is to apply a rating to a pitch, and ultimately grade a pitcher's arsenal. One thing lost in this grading approach is understanding how a specific kind of pitch can lead to specific outcomes. For example, sometimes you need a ground ball. How often does a particular sinker lead to a ground ball, and what tweaks to velocity, movement, release point or sequencing can make that pitch even more likely to result in a grounder? This link between pitch characteristics and batted ball types (or event types like whiffs) can have an outsized impact on calling pitches and managing games. The Stuff or Not app is designed to provide coaches and players easily accessible information about event type outcomes, and expected statistics like xAVG and xSLG, for different pitches. The app is built on data from over 5 million Division 1 (D1) college pitches and over 2.2 million Major League Baseball (MLB) pitches from 2022-2025. The app's dashboard screen makes it easy for players to input pitch characteristics and see D1 and MLB event outcome likelihoods. This dashboard is particularly useful for adding competition, and another dimension of coaching, to bullpen sessions. The heatmap screen allows the user to see how quickly, and in what direction, event type outcomes vary with changing pitch characteristics.