Novak Djokovic breaks record for most weeks at No. 1

"It's surreal to be that many weeks No. 1 ... Just being amongst these legendary names is flattering. I'm proud of it."

The top 5:

1. Djokovic: 378 weeks
2. Graf: 377
3. Martina Navratilova: 332
4. Serena Williams: 319
5. Roger Federer: 310

The big picture: Djokovic first reached No. 1 at age 24 on July 4, 2011, the day after beating Nadal in the Wimbledon final for his third grand slam, and first at the All England Club.

• It was actually Nadal's spot that he took atop the list that day, and since then the Spaniard has spent "only" 107 weeks at No. 1 (of 209 total), compared to Djokovic's 378.
• Federer, who amassed most of his 310 weeks at the top in the 2000s — including a record 237 consecutive weeks from 2004-08 — has been No. 1 for just 25 weeks since Djokovic debuted there.

What to watch: Djokovic's first test after setting this record is the Dubai Championships, in which he'll face qualifier Tomáš Macháč today in the round of 32.