Ivo Karlovic sets US Open record with 61 aces in his win over Taiwan's Lu Yen-Hsun

Big Ivo Karlovic banged down a record-breaking 61 aces on his way to a first-round victory over Taiwan's Lu Yen-Hsun.

The 37-year-old Croat, who has served the most aces in ATP Tour history with well over 11,000, hit 22 in the second set alone as he outgunned Lu 4-6, 7-6 (7-4), 6-7 (4-7), 7-6 (7-5), 7-5 .

Tuesday's total beats the previous record of 49 set by Dutchman Richard Krajicek in the quarter-finals in 1999.

"I knew there were a lot of aces because at one stage I was serving one on almost every point but I didn't know it was a record," 21st-seed Karlovic told reporters.

ATP Rome

Are Nadal, Alcaraz, Djokovic playing Italian Open? When does it start?

7 hours ago

Ivo Karlovic

Image credit: Imago

Only 10 of the aces came in the final set but Karlovic broke to win the match.

"I'm getting old," he joked. "I have to work a bit more on my serve, I guess."

WTA Madrid

'Really excited' Swiatek cruises through to Madrid final, will face Sabalenka

2 hours ago

ATP Madrid

Swiatek, Kyrgios see no issue with Nadal shirt request as Lehecka says it's 'kind of weird'

Yesterday at 18:57

ATP Madrid

Sinner withdraws from Madrid Open as hip injury sparks French Open fitness race

Yesterday at 18:55