Daily leaders
Knuckle curve: Average Spin: October 10, 2026
Daily leaders for Knuckle curve: Average Spin on October 10, 2026. How fast the ball spins, measured in turns per minute. Only measured pitches are included. More spin is not always better. Uses pitches recorded as knuckle curve.
View player statsRecorded pitch types. Usage divides by all delivered pitches, including unknown types. Speed is in mph, spin in rpm and extension in feet. Averages use measured pitches only. Whiffs divide misses by swings.
No leaders for October 10, 2026
No players with available Knuckle curve: Average Spin data meet this day's requirements. Missing inputs and undefined ratios are not counted as zero.
Understanding daily Knuckle curve: Average Spin
How fast the ball spins, measured in turns per minute. Only measured pitches are included. More spin is not always better. Uses pitches recorded as knuckle curve.
Formula: Sum of recorded spin rates ÷ pitches with spin measurements
Daily totals include a player's games on the selected date, including doubleheaders. Rates are calculated from the combined counts. Missing inputs and zero-denominator ratios are unavailable, rather than zero.
Daily rates describe a small sample. Read them alongside the playing time shown in the table.
Source: MLB game statistics and MLBDB derived measures. Source refresh time is not available.