Who is Rei Sakamoto? Japanese phenom faces Frances Tiafoe
Rei Sakamoto is a 20-year-old Japanese tennis rising star who qualified for the 2026 US Open and earned his first Grand Slam main-draw win by beating Australia's Aleksandar Vukic in five sets, firing 38 aces along the way. The Nagoya-born phenom, who honed his game at a Florida academy, now faces No. 11 seed Frances Tiafoe in the second round. The matchup at Louis Armstrong Stadium shapes as a career-defining test for one of the tournament's breakout names.
Key Takeaways
- Rei Sakamoto qualified via a win over retiring idol Kei Nishikori, then claimed his first major victory over Aleksandar Vukic with 38 aces.
- The 6'4" Japanese player trained at IMG Academy in Florida and is a former Australian Open boys' champion.
- Frances Tiafoe enters as a heavy favorite with no prior head-to-head history between the two players.
- Sakamoto's samurai-sword racquet celebration and five-set endurance have made him a fan favorite at Flushing Meadows.
Who Is Rei Sakamoto?
Rei Sakamoto is a fast-rising Japanese talent preparing for the biggest match of his young career. Born in Nagoya, the 20-year-old relocated to the IMG Bollettieri Tennis Academy in Florida at age 15 to sharpen his game — a move that now reads like a classic Florida training-ground story with global stakes.
Sakamoto lifted his first major trophy as the Australian Open boys' champion two years ago, defeating Czechia's Jan Kumstat in a three-set final. "When I grabbed a racquet for the first time I felt like I was born for playing tennis," he said afterward. Three Challenger titles helped propel him into the Top 150 by June 2026.
How Did Sakamoto Reach the US Open Second Round?
Sakamoto's path through Flushing Meadows has been anything but ordinary. He earned his main-draw berth with a final qualifying win over retiring countryman and longtime idol Kei Nishikori — a 6-4, 7-6(3) victory he called a match he would remember for his entire career. "He's my idol," Sakamoto said, recalling watching Nishikori's 2014 US Open final run from his grandmother's couch.
His first-round win over Vukic was equally dramatic: 6-4, 6-7(5), 6-4, 3-6, 6-4 in close to three and a half hours, with 76 total winners including those 38 aces. The match began Sunday, was rain-delayed, and finished Monday — testing the composure Sakamoto and coach Federico Ricci had deliberately built after his Grand Slam debut loss to Rafael Jodar at the Australian Open earlier in 2026.
What Should Fans Expect From Sakamoto vs Tiafoe?
The second-round clash between Rei Sakamoto and Frances Tiafoe is scheduled for September 2, 2026, at 7:00 PM ET under the lights at Louis Armstrong Stadium. Tiafoe, the No. 11 seed and home-court favorite, holds a commanding ranking advantage and arrives with a 6-1 record in recent hard-court matches, including wins over Ben Shelton, Lorenzo Musetti, and Felix Auger-Aliassime.
There is no prior head-to-head history between the two. Betting markets reflect the gap: Tiafoe is listed at -383 on the moneyline, with Sakamoto at +300, per Sports Betting Dime. Sakamoto's serve — 74.5% of first-serve points won and 0.67 aces per game this season — gives him a puncher's chance, but Tiafoe's return numbers and best-of-five experience make him the clear favorite.
Why Is Sakamoto Turning Heads at the US Open?
Beyond the results, Sakamoto's on-court personality has captivated crowds. His signature celebration — swinging his racquet like a samurai sword — reflects a fighter's mindset. "When I'm going on the court, I'm ready to win the battle and always staying in the moment, fighting until the end," he told ATPTour.com last year.
For more on Sakamoto's background and his upcoming test against Tiafoe, see the official US Open preview. Win or lose against the American veteran, the 2026 US Open already looks like the turning point the Japanese phenom needed.