Learn · Golf data
Smash factor, explained
Smash factor is the one launch monitor number that tells you how well you hit it, not just how hard you swung. Here's what's good for each club.
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What smash factor is
Smash factor = ball speed ÷ club speed. It shows how much of your club speed became ball speed, which mostly comes down to how centrally you struck it. Trackman's example: two golfers both swing at 100 mph; one has a smash of 1.40 and launches the ball at 140 mph, the other has 1.50 and launches it at 150 mph. That 10 mph difference is worth about 20 yards.
Why driver tops out near 1.50
The rules limit how springy a driver face can be. The R&A's equipment rules test clubfaces with a pendulum "characteristic time" test, capped at 239 microseconds plus an 18-microsecond tolerance. Before that, the limit was a coefficient of restitution (COR) of 0.830.
Club designer Tom Wishon calculates that the highest possible smash for a 0.830-COR driver is 1.495. That's where the familiar "1.50 ceiling" comes from. To be clear, it's engineering arithmetic based on the limit; neither the USGA nor the R&A publishes 1.50 as a number.
Seeing 1.51 on your launch monitor?
Launch monitors measure club and ball speed to within about ±1 mph, so readings slightly above 1.50 can show up. Treat them as "very well struck", not a broken rule.Good smash factor by club
Source: Trackman 2023 Tour Averages. Lofted clubs naturally produce lower smash.
| Club | PGA Tour | LPGA Tour |
|---|---|---|
| Driver | 1.49 | 1.49 |
| 3-wood | 1.47 | 1.47 |
| 5-wood | 1.47 | 1.46 |
| Hybrid | 1.47 | 1.44 |
| 3-iron | 1.46 | — |
| 4-iron | 1.44 | 1.43 |
| 5-iron | 1.41 | 1.42 |
| 6-iron | 1.39 | 1.41 |
| 7-iron | 1.34 | 1.38 |
| 8-iron | 1.33 | 1.36 |
| 9-iron | 1.29 | 1.3 |
| PW | 1.24 | 1.25 |
Amateur driver smash factor
| Group | Driver smash |
|---|---|
| Male, scratch | 1.49 |
| Male, 5 hcp | 1.45 |
| Male, 10 hcp | 1.45 |
| Male, average (14.5 hcp) | 1.44 |
| Male, bogey golfer | 1.43 |
| Female, scratch | 1.46 |
| Female, 5 hcp | 1.45 |
| Female, 10 hcp | 1.44 |
| Female, 15 hcp | 1.41 |
| Shot Scope LM1 users (all) | 1.4 |
Trackman Combine averages by handicap; Shot Scope's LM1 data (Oct 2026) found only a 0.04 gap between scratch and 20+ handicap users.
Questions people ask
What is a good smash factor with a driver?
Trackman says golfers would hope to get near 1.50 with driver. Tour players average 1.49; the average male golfer (14.5 handicap) is about 1.44 in Trackman Combine data.
What is a good smash factor for irons?
It falls as loft rises: PGA Tour players average 1.44 with a 4-iron, 1.34 with a 7-iron and 1.24 with a pitching wedge. Trackman suggests about 1.25 for a PW.
Can smash factor be above 1.50?
Readings of 1.51–1.52 can appear because launch monitors measure club and ball speed to within about ±1 mph. The ~1.50 ceiling comes from the rules limiting how springy a driver face can be.
Keep reading
Sources
Every number on this page comes from one of these 6 pages. We checked them on Oct 27, 2026. Prices change often, so confirm before you buy.
- 1.Trackman: What is smash factor? · trackman.com
- 2.R&A: Spring effect and dynamic properties · randa.org
- 3.Wishon Golf: How does COR affect your game? · wishongolf.com
- 4.Trackman: Tour Averages (May 2, 2024) · trackman.com
- 5.Shot Scope LM1 data release (Oct 15, 2026) · firstcallgolf.com
- 6.Trackman: What is club speed? (Combine averages) · trackman.com
About the author
Nouman SabirFounder & Editor
Nouman Sabir founded Carry & Spin and edits every page. Nouman reads the makers' manuals and plan pages, retailer listings and owner forums, works out what each setup really costs, and keeps every claim linked to its source. Nouman is a researcher, not a golf pro, and says so.
Expert review panel: PGA professionals and launch monitor testers who advise on the technical side of these guides.
