In all four 2013 Grand Slam tournaments, Raonic matched his previous best result.
He reached the fourth round of the Australian Open, falling to No.
2 Federer.
At the French Open, he lost in the third round to Kevin Anderson.
At Wimbledon, he lost in the second round to Igor Sijsling.
At the US Open, he fell to No.
9 Richard Gasquet in the fourth round, despite a career-high 39 aces.

Raonic again achieved success at ATP 250 and ATP 500 events.
In February, Raonic earned his third consecutive title at the Pacific Coast Championships, defeating Tommy Haas in the final.
Over three years, he achieved a perfect 12–0 match record, and did not drop a single set.
He is the only man in the Open Era to win three consecutive singles titles at this event.
In September, he won the Thailand Open tournament, defeating No.
9 Gasquet in the semifinals and No.
6 Berdych in the final.
The titles were Raonic's fourth and fifth, both coming in ATP 250 events like previous titles.
In October, Raonic reached the Japan Open final for the second consecutive year, but lost a close match to No.
7 Juan Martin del Potro.
It marked his fourth consecutive loss in the final of an ATP 500 event.

In eight of the nine ATP 1000 events, Raonic matched or improved on his career-best performance.
This included his first ATP 1000 series final at the Canadian Open in August.
During his third round victory over del Potro, Raonic was awarded a point even though his foot touched the net.
He did not report his error to the umpire, and won the last nine points to close out the match.
Raonic later admitted that he was wrong not to admit his error at the time: "I made a mistake in the spur of the moment ... I'm disappointed with myself, how I dealt with it."
 After beating Ernests Gulbis in the quarterfinals, Raonic defeated compatriot Pospisil in the semifinals.
The match against Pospisil was the first all-Canadian semifinal in an ATP 1000 tournament.
In the final, he lost to Nadal in just 68 minutes.
Following the tournament, Raonic was ranked No.
10, becoming the first Canadian player and the first player born in the 1990s to break into the top 10.

In 2013, Raonic again led the ATP in points won on first serve (82%) and in service games won (91%).
He had 45 match victories for the second consecutive year.
His coaching team underwent significant changes in 2013.
In May, Raonic split with his coach of two and half years, Blanco.
Less than a month later, Raonic hired former No.
3 tennis player Ivan Ljubičić as his coach.
In December, he hired Riccardo Piatti as a co-coach with Ljubičić.
In all four 2013 Grand Slam tournaments, Raonic matched his previous best result. He reached the fourth round of the Australian Open, falling to No. 2 Federer. At the French Open, he lost in the third round to Kevin Anderson. At Wimbledon, he lost in the second round to Igor Sijsling. At the US Open, he fell to No. 9 Richard Gasquet in the fourth round, despite a career-high 39 aces.
Raonic again achieved success at ATP 250 and ATP 500 events. In February, Raonic earned his third consecutive title at the Pacific Coast Championships, defeating Tommy Haas in the final. Over three years, he achieved a perfect 12–0 match record, and did not drop a single set. He is the only man in the Open Era to win three consecutive singles titles at this event. In September, he won the Thailand Open tournament, defeating No. 9 Gasquet in the semifinals and No. 6 Berdych in the final. The titles were Raonic's fourth and fifth, both coming in ATP 250 events like previous titles. In October, Raonic reached the Japan Open final for the second consecutive year, but lost a close match to No. 7 Juan Martin del Potro. It marked his fourth consecutive loss in the final of an ATP 500 event.
In eight of the nine ATP 1000 events, Raonic matched or improved on his career-best performance. This included his first ATP 1000 series final at the Canadian Open in August. During his third round victory over del Potro, Raonic was awarded a point even though his foot touched the net. He did not report his error to the umpire, and won the last nine points to close out the match. Raonic later admitted that he was wrong not to admit his error at the time: "I made a mistake in the spur of the moment ... I'm disappointed with myself, how I dealt with it."  After beating Ernests Gulbis in the quarterfinals, Raonic defeated compatriot Pospisil in the semifinals. The match against Pospisil was the first all-Canadian semifinal in an ATP 1000 tournament. In the final, he lost to Nadal in just 68 minutes. Following the tournament, Raonic was ranked No. 10, becoming the first Canadian player and the first player born in the 1990s to break into the top 10.
In 2013, Raonic again led the ATP in points won on first serve (82%) and in service games won (91%). He had 45 match victories for the second consecutive year. His coaching team underwent significant changes in 2013. In May, Raonic split with his coach of two and half years, Blanco. Less than a month later, Raonic hired former No. 3 tennis player Ivan Ljubičić as his coach. In December, he hired Riccardo Piatti as a co-coach with Ljubičić.
Milos Raonic