There’s a guy named Rock. That’s essentially all caddie Steve Williams remembers about him—first name, resided in Japan, and the fact that he made the trip to Isleworth with some regularity, carrying prototype golf balls in his luggage destined for exactly one set of hands. (“Rock” was none other than Rock Ishii, Nike’s golf ball guru.)
This was Nike Golf’s R&D process for the original Tour Accuracy ball, and it looked nothing like how equipment gets tested today. No tour van. No launch monitor data pulled from a myriad of different players. Just a man flying across the Pacific with prototypes, Tiger Woods hitting them onto the range at his Florida home.
Williams, who chronicled his career inside the ropes in Together We Roared, written with Evin Priest, has no shortage of details from his time on Tiger’s bag. But the ones that stick—the ones that tell you something true about how Tiger approached the game—tend to be granular. The kind of things you’d only notice if you were standing right next to him.
“They knew which ones were Tiger’s because he was the only one using that ball,” Williams recounted on Golf Digest’s Club Lab podcast, part of the 25th anniversary Tiger Slam interview with the legendary caddie. “He’d get them back.”
That detail—the cart barn workers sorting Tiger’s prototype Nike balls out of the range basket—is maybe the clearest window into what bespoke equipment actually looks like at the top of the sport.
This wasn’t a ball Nike built and handed to its tour staff. It was a ball built specifically around Tiger’s clubhead speed, spin numbers, shot shapes and obsession for controlling trajectory at every height. The stinger. The mid-flight draw. The high fade. Rock kept flying in. Tiger kept hitting them. The process took years.
“Tiger was not going to put that ball into play until he was 100 percent certain it performed how he wanted it to perform,” Williams said.
When it finally went into play—the Tour Accuracy, which later evolved and changed names as it was refined—almost nobody else could sustain it. Players tried it, couldn’t make it work, and went back to whatever they’d been playing. The ball was so precisely calibrated to Tiger’s swing that it was essentially useless in anyone else’s hands.
It did go further. Williams recalls it being roughly three to four yards longer with short irons, seven to eight with the longer clubs. But distance was never the point. The point was flight, spin, and the ability to shape shots at different heights and have the ball respond the same way every time.
Which brings us to St. Andrews, July 2000, and the piece of equipment that might tell you more about Woods than any of it.
By the time the Open Championship field arrived at the Old Course, Tiger had already won the U.S. Open at Pebble Beach by 15 shots. His first words to Williams after signing that scorecard weren’t about celebrating. They were a directive: get to St. Andrews early, learn every blade of grass, because I’m going to play better there. Williams flew home to New Zealand, then flew to Scotland, and was walking the course at 5 a.m. a week before the field arrived.
Tiger delivered. He didn’t find a single bunker all week, executed every shot at every trajectory the course demanded, the Nike ball doing exactly what Rock had spent years flying prototypes across the Pacific to make it do. The win capped the career Grand Slam at age 24.
And he did it on one wooden tee.
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“He used the one tee for the entirety of the week,” Williams confirmed. “Towards the end, the tee was somewhat chipped from every side, and there was some difficulty in teeing it up.”
Four rounds. Seventy-two holes. Every par-3 tee shot at the home of golf on one battered stick of wood.
After the tournament, that tee went into a Stanford golf pouch—the one Tiger used to store his watch and wallet before a round. Williams says he’d pull it out from time to time during their years together, a quiet reminder of what the best week of ball-striking he’d ever witnessed up close actually looked like.
“In the entire time I caddied for Tiger, if you were to ask me the week he played the greatest—100 percent, it was the 2000 Open Championship at St. Andrews,” he said.
One prototype ball, built by a man who flew in from Japan until they finally got it right. One wooden tee, kept in a pouch long after the tournament was over.
This article was originally published on golfdigest.com
