According to research by Mark Broadie, a professor at Columbia University who is responsible for the ‘strokes gained” concept, on average PGA TOUR pros make 99% of 2-foot putts, 96% of 3-foot putts, 88% of 4-foot putts and 77% of 5-foot putts.

From 10 feet, the pros’ one-putt percentage is 40%, 23% from 15 feet, 15% from 20 feet, 7% from 30 feet, 4% from 40 feet, 3% from 50 feet and 2% from 60 feet. Also, according to Broadie, putting from inside 10 feet is very different than putting from 10 feet. The PGA TOUR average is 88% inside 10 feet, and just 40% from 10 feet. Only in one of 10 rounds do tour pros hole 100 percent of their putts from inside 10 feet.

And most recently, in 2021/22, Tour pros made an average 99% of putts that were 3ft or less. The number dropped slightly for 4ft putts, to 92%, while 81% of 5ft putts were successful, and 70% of 6ft putts were holed. That falls to around 61% of 7ft putts, 54% of 8ft putts and 45% from 9 feet.

https://myavidgolfer.com/golf-science-putting-numbers-that-might-surprise-you/#:~:text=According%20to%20research%20by%20Mark,%25%20of%205%2Dfoot%20putts.