As one of the top instructors in the world, Claude Harmon III's stable is loaded with some of the biggest names in the sport, including Brooks Koepka, Dustin Johnson and Rickie Fowler. All three players spend countless hours with Harmon over the course of a season fine-tuning their game, but due to their hectic schedules, it's not always possible for instructor and student to carve out three or four hours to grind on the range. and use Strokes Gained data, along with shot-by-shot info from each round, to tailor a practice plan for each player. For example, Harmon used ShotLink data to pinpoint an issue with Johnson's wedge game after the 2015 season. In the months leading up to 2016, Johnson would go on to spend an exorbitant amount of time working specifically on his short game in an effort to tighten up his yardages and accuracy. "We looked at his wedge stats and didn't have to guess if he was a bad wedge player," Harmon said. "The data told us he needed to improve in that area of his game. Just putting work in, he spent time grinding on the range to improve on that area, and the results showed the next season when he won the U.S. Open. The data these players have access to is so powerful. If you're not looking at what you're doing when you're playing golf, it really doesn't matter." when companies like Arccos Golf came into the picture. With the help of built-in grip sensors that weigh a mere 4.6 grams, golfers are able to tap into Arccos' mobile app and track each round, shot-by-shot, to get an accurate snapshot of yardages with each club to figure out areas of their game that need improvement. It's essentially the closest thing a recreational golfer can get to the Tour's version of ShotLink. In fact, Arccos data has been so impactful that Harmon started requiring the junior golfers he teaches to use the grips. For Harmon, the grips allow him to cut down on the amount of time typically spent going over previous tournament rounds to figure out what went right, wrong and needs to be worked on during the practice session. "It allows us to waste less time during practice rounds," he said. "I already know what's going on. Driver and putter look good, but your irons sucked, so let's go out and work on that part of your game during today's session. It's the same thing we're doing on the PGA Tour. We don't have a lot of time to play the guessing game. called Cobra Connect.