In modern baseball, data from Statcast confirms that infield throwing velocity is a critical metric for defensive success, particularly on "bang-bang" plays at first base.
Data supporting the importance of throw speed from second to first includes:
1. Positional Averages and Impact
Second Basemen (2B): Average throw speeds range from 75 to 85 mph. While lower than shortstops (85–95 mph), 2B velocity is prioritized for quick releases and accuracy during double plays.
Arm Strength Leaderboard: Statcast tracks the average of a player’s top 5% of throws for 2B/SS/3B positions. This specialized tracking highlights how maximum effort throws are a distinct, measurable skill.
2. Defensive Urgency Data
The speed of a throw "counts" because it directly competes with a runner's time to first base:
Runner Speed: The average MLB batter reaches first base in 4.31 to 4.35 seconds. Elite runners like Trea Turner reach it in approximately 4.13 to 4.22 seconds (2025 data).
The "Bang-Bang" Window: Infielders often have only fractions of a second to complete a play. A difference of 0.2 seconds can be the deciding factor between a runner being safe or out.
3. Notable Statcast Records (Infield Assists)
Masyn Winn: Set a record for the fastest throw by an MLB infielder at 101.2 mph in May 2024.
Elly De La Cruz: Recorded a 99.8 mph infield assist in 2023.
Oneil Cruz: Previously held records with infield throws reaching 97.8 mph.
4. Statistical Significance
Range and Versatility: Higher velocity allows an infielder to field balls deeper "in the hole" or further up the middle and still beat a runner to first.
Runner Intimidation: High throwing velocities can influence base runner behavior, discouraging them from taking extra bases or attempting to advance.
For detailed player rankings, you can view the official Statcast Arm Strength Leaderboard on Baseball Savant.