With his 6-4, 6-3 second-round victory against Germany’s Jan-Lennard Struff at the Olympics on Monday, Novak Djokovic hit yet another milestone—he’s now won his last 20 matches in a row, having gone 4-0 to win the ATP 250 in Belgrade the week before Roland Garros, then 7-0 to win Roland Garros, 7-0 to win Wimbledon and 2-0 so far in Tokyo.

Djokovic has now recorded winning streaks of 20 or more tour-level matches in a row eight times in his career, which is the most of any active men’s player. Roger Federer and Rafael Nadal have the next-most with seven and six, respectively.

The Serb hasn’t lost a match in 71 days, since Nadal outlasted him in a hard-fought Rome final on May 16th, 7-5, 1-6, 6-3. He left Rome 16-3 on the year—he’s now 36-3.

“The Olympics and the US Open are obviously my biggest objectives for the remainder of the season, and it’s going to be demanding,” Djokovic said in Tokyo. “But I am full of confidence and motivated to represent Serbia in the best possible way. I am yearning for a medal in Tokyo, hopefully gold, and then I’ll go to New York aiming to complete it all.”