Speed of the ball immediately after impact. The primary driver of distance.
PGA Tour Avg
171 mph (driver)
Amateur Avg
133 mph (driver)
Ball speed is the velocity of the golf ball measured the instant it leaves the clubface. Of all 40+ parameters TrackMan iO captures, ball speed has the strongest direct correlation to distance — every 1 mph increase in ball speed adds roughly 2 yards of carry with a driver. It is the single best indicator of strike quality and a key fitting metric used by club builders, PGA Tour pros, and elite coaches worldwide.
Ball speed determines how far the ball can possibly travel. While other parameters shape the trajectory, ball speed sets the ceiling. Two players can swing the same club speed, but the one with higher ball speed (better strike) will always hit it longer. PGA Tour winners consistently rank in the top 25% in ball speed.
TrackMan iO uses dual-radar Doppler technology to capture the ball's velocity at the exact moment of separation from the clubface. The reading is accurate to within ±0.2 mph, the same precision used at PGA Tour events.
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