How efficient is your driver strike?
Type in your typical ball speed and driving distance and see how your strike efficiency stacks up — with benchmarks from TrackMan and MyGolfSpy.
Two golfers can swing the same ball speed and lose 30 yards to each other off the tee. The reason almost always lives in strike efficiency — how much carry distance you're actually getting per unit of ball speed.
It's a more useful number than raw ball speed alone. Two players with identical ball speed can have very different carry distances depending on launch angle, spin, and where on the face they're catching the ball.
This tool gives you a quick read of where you sit. Enter your typical ball speed and carry distance (the launch-monitor number, not what you guess on the course — roll varies too much by ground conditions) and you'll get your strike efficiency. If you know your clubhead speed, you'll also see your smash factor.
Strike Efficiency Calculator
Pop your numbers in to see how efficiently you're moving the ball.
Your results will appear here.
Sources: TrackMan, MyGolfSpy, Today's Golfer 2026 testing.
What the numbers mean
Strike efficiency — carry yards per mph of ball speed. The PGA Tour average is about 1.62 (~282 yards of carry on 173 mph ball speed). At optimal launch and spin, every 10 mph of ball speed adds roughly 16–17 yards of carry, so the ratio is fairly linear in the 1.55–1.75 band. Below 1.48 almost always points at off-centre strikes, an out-of-window launch angle, or spin that's too high to carry the ball as far as the speed should.
Smash factor — ball speed divided by clubhead speed. It measures the quality of this strike, not your overall ability. Anyone who centres the driver face on a given ball can hit ~1.48 on that swing — beginner or pro. The PGA Tour driver average is about 1.49 and the COR-driven ceiling is around 1.50, so the gap between "off-centre" and "perfect" is small but distance-rich: every 0.01 of smash is roughly 1 mph of ball speed at the same swing speed, which at driver speeds is about 2 yards of carry.
Strike efficiency
carry yards / mph of ball speed
- ≥ 1.65Tour-level — PGA average is ~1.62
- 1.58 – 1.65Efficient — single-digit handicapper
- 1.48 – 1.58Average — typical mid-handicap
- < 1.48Room to improve — spin/launch off optimal
Smash factor
ball speed / clubhead speed
- ≥ 1.48Centre-face contact (PGA Tour avg ~1.49)
- 1.45 – 1.48Solid contact — close to centre
- 1.40 – 1.44Slightly off-centre
- < 1.40Off-centre — face-impact tape will help
What affects it
Three things mostly drive strike efficiency:
- Centre-face contact. This is the single biggest lever. Off-centre strikes lose ball speed (and therefore distance) even at the same swing speed. Face-impact tape on the range for one session is the cheapest distance gain in golf.
- Attack angle. A positive attack angle (hitting up on the ball) reduces spin and adds carry. Most amateurs swing slightly down on the driver, leaving 5–15 yards on the table.
- Launch and spin window. Too much spin balloons the ball; too little knuckles it. The "right" window depends on ball speed — faster swings can carry lower spin, slower swings need more.
The longest drivers of 2026
If your numbers suggest your gear isn't keeping up — particularly if you're seeing efficient ball speed but middling distance — it might be worth a fitting on something newer. These three are consistently rated longest in independent UK testing:
High-CT face and balanced spin — near-longest in 2026 testing, still forgiving on off-centre strikes.
Low-spin head built for ball-speed chasers — fastest in the weight-back setting when you centre the face.
Fast ball speeds across every swing-speed bracket in MyGolfSpy testing — the value pick of the three.
Want to compare more options? Browse every driver in our catalog or jump back to more tools and calculators.