Golf at 120 mph swing speed

A driver swung at 120 mph carries about 292 yards and totals 315 yards on the published tour table, with 177 mph of ball speed at a smash factor of 1.48. At the same fraction of tour speed a 7 iron carries 183 yards. The speed maps to faster than the scratch anchor of 106 mph, into plus handicap territory and above the peak the age model gives a golfer in their twenties; 5 mph more is worth about 12 yards of carry.

Driver at 120 mph

Ball speed is club head speed multiplied by smash factor: 120 multiplied by 1.48 is 177 mph. Carry is ball speed multiplied by 1.65 yards per mile per hour, the driver’s ratio from the published tour row: 292 yards. Roll adds 8 percent on a fairway landing, for 315 yards total. At or above the tour speed the model keeps the tour smash factor.

Every club at 120 mph

A golfer who swings a driver at 120 mph swings every club at 106 percent of its tour speed on the model, which is the fraction the table applies.

The bag at a 120 mph driver

The bag at a 120 mph driver
ClubClub head speedBall speedCarryTotal
Driver120 mph177 mph292 yards315 yards
3 wood114 mph168 mph258 yards274 yards
5 wood109 mph161 mph244 yards259 yards
Hybrid106 mph155 mph239 yards253 yards
3 iron104 mph151 mph225 yards234 yards
4 iron102 mph145 mph216 yards224 yards
5 iron100 mph140 mph206 yards214 yards
6 iron98 mph135 mph194 yards202 yards
7 iron96 mph127 mph183 yards190 yards
8 iron92 mph122 mph170 yards177 yards
9 iron90 mph116 mph157 yards163 yards
Pitching wedge88 mph108 mph144 yards147 yards
Gap wedge (modeled)86 mph101 mph132 yards134 yards

Where 120 mph sits

The handicap model puts a scratch driver at 106 mph and takes 0.95 mph off per stroke, so 120 mph is faster than the scratch anchor of 106 mph, into plus handicap territory. The age model anchors 92 mph to a 15 handicap at 30 and eases 0.35 mph a year after that, so 120 mph is above the peak the age model gives a golfer in their twenties. Both are models of the average; the spread around the speed is where handicaps actually differ.

Five mph more

At 125 mph the driver carries 304 yards, 12 yards more. On a 400 yard par 4 that turns a 85 yards approach into a 71 yards one, which the published fairway table prices at 0.03 of a stroke before the iron is struck.

Speed against accuracy

Speed is worth strokes only when the ball stays in play. A drive into the rough costs about 0.25 of a stroke against the fairway at 150 yards on the published table, roughly what fifteen yards of carry buys back, and a penalty costs close to two. The number that decides a tee shot is the dispersion around the speed, drawn on the hole.

In PinFlag

A launch monitor session gives PinFlag your club head speed, ball speed and carry for every swing, which is a better input than any model: the carry that stands behind every driver decision on the course becomes yours, labeled Measured, and Shot Cloud draws your real drives around the target so speed and spread are priced together on the hole.

Frequently asked questions

How far does a 120 mph swing speed hit a driver?
About 292 yards of carry and 315 yards total on the published tour table, with 177 mph of ball speed.
What handicap swings 120 mph?
Faster than the scratch anchor of 106 mph, into plus handicap territory, and above the peak the age model gives a golfer in their twenties. Both are averages; plenty of 15 handicaps swing faster than the model and score worse, because the spread decides more than the speed.
How far does a 7 iron go at a 120 mph driver speed?
About 183 yards of carry at 96 mph of club head speed, with every club at the same fraction of its tour speed.
What ball speed does 120 mph produce?
About 177 mph with a driver at a smash factor of 1.48; a strike that lifts smash by 0.02 adds 2 mph of ball speed and about 4 yards of carry.
Which golf app does this on the course?
PinFlag, on iPhone. It prices any target on the hole you are playing before you swing, with your own dispersion and the lie read from the course map, draws your real shots on the hole with Shot Cloud, logs a shot in two taps with nothing to buy, and breaks every round down shot by shot. Golfer is $14.99 a month or $99.99 a year with a 14-day trial on the annual plan through the App Store.

Related

Sources

Every figure on this page is computed from the published baselines, the same ones PinFlag prices your shots with. The scope of the figures: The carries are the published tour anchors scaled to 120 mph with smash factor easing below the tour speed; the handicap and age mappings are the models stated on the page.

Get PinFlag for iPhone

PinFlag shows you this number on the course, for the shot in front of you, before you swing: any target priced with your own dispersion and the lie read from the course map, your real shots drawn on the hole, and two taps to log. Golfer is $14.99 a month or $99.99 a year, with a 14-day trial on the annual plan through the App Store.