Canadians Milos Raonic, Eugenie Bouchard and Frank Dancevic all posted wins at Wimbledon on Tuesday without dropping a set.

Raonic, from Thornhill, Ont., fired 30 aces — compared to two for his opponent — in a comfortable 6-2, 6-4, 6-4 win over Australia's Matthew Ebden that took little more than 90 minutes.

It was a two-hour victory for the 107th-ranked Dancevic, who won his first Wimbledon match since 2011 as he upset 27th-seeded Croatian Ivo Karlovic 6-4, 7-6(5), 7-6(4).

Raonic, who lost his only grass tuneup match this month at Halle, Germany, is into the Wimbledon second round for the fourth consecutive year, but hopes to go farther after never winning two matches in a row at the event.

The 23-year-old was never in trouble from Ebden, with the Canadian claiming the first two sets and breaking for a lead in the third.

Raonic sent over a service winner for three match points, but needed only one as he put a volley into the far corner out of Ebden's reach.

"I feel really good about this win, I played a lot better than I expected to," said Raonic. "I showed that I can adjust my game on this surface," said the right-hander with a 10-10 career record on grass.

"I did what was necessary to win. I think my Roland Garros quarter-final gave me confidence and showed me that I know what I need to do to win in these situations and eventually get into the second week of slams."

Bouchard of Westmount, Que., got a test against Slovakian veteran Daniela Hantuchova before prevailing 7-5, 7-5.

Bouchard had a tougher first match, coming from 3-1 down in the first set, which she won on a correct line call challenge.

"I expected a tough match, and it was a tough one," said Bouchard, who advanced to the semifinals of the season's previous two Grand Slams. "I definitely feel like I didn't play my best most of the match, but competed when it counted, raised my level at some big points.

"I felt like I was a bit inconsistent. I didn't take the ball as early as I would have liked to. I felt myself more on defence more often than I'd like to be. The first match of a tournament, especially a Grand Slam, is always a bit nervy. I think there was a bit of nervous tennis out there."

Bouchard, who is seeded 13th, often struggled with her serve.

She was the only woman to reach the semifinals of this year's Australian Open and French Open, and is looking to take the next step for a first ever Grand Slam final.

Dancevic, a 29-year-old from Niagara Falls, Ont. has played in the main draw at the All England Club seven times and earned his third Wimbledon win as he overcame 32 Karlovic aces. Dancevic never faced a break point and broke the Croatian once.

Dancevic advanced with 47 winners and just four unforced errors.

"I had to serve really well, it was my main focus," said Dancevic. "But returning was a lottery, I was just guessing.

"From the first point I had to pick sides. I returned amazing, From the first ten serves in a row I got ten returns back. It was basically a guessing game, when I got into the point, I had the advantage. It came down to a coin toss, I returned a little bit better on the key points."

He entered the field as a lucky loser from qualifying round and won his first match at the ATP level since the U.S. open fist round over Robin Haase last August.

"It feels great, I haven't been on this grass while," Dancevic said. "I felt motivated by the whole atmosphere and being given a chance to be alive here at Winmbledon. I tried to play relaxed and go for my shots.

"I'm really, really happy I got through."

In women's action Swiss Timea Bacsinszky beat Toronto's Sharon Fichman 6-1, 6-3, with the 85th-ranked Canadian admitting she was outplayed.

"I'm starting to like the grass," said the 23-year-old who was making her main draw debut at the All England Club. "Unfortunately I didn't plays as well as I could have.

"It didn't help that my opponent was playing very well, It's disappointing. I felt like I didn't bring a good enough level for most of the match and she did. It was pretty straightforward — she played well and went for it, I tried and it just didn't work for me today."

Elsewhere, top-seeded and five-time champion Serena Williams beat 113th-ranked Anna Tatishvili 6-1, 6-2 to begin her 15th appearance at the All England Club. Williams served 16 aces and had 31 winners to overwhelm the 24-year-old American.

Former champs victorious

In other results, Roger Federer defeated Paolo Lorenzi of Italy 6-1, 6-1, 6-3 to begin his quest for a record eighth Wimbledon title.

Federer, also attempting to win his 18th Grand Slam title, lost in the second round here last year, his earliest defeat at Wimbledon since 2002. He finished Tuesday's match with his ninth ace. It is Federer's 16th consecutive appearance at Wimbledon and his 59th Grand Slam event in a row, extending his record for the longest streak of consecutive majors in the Open Era.

Two-time Wimbledon champion Rafael Nadal rallied from one set down before beating hard-hitting Martin Klizan of Slovakia.

The top-ranked Nadal battled for nearly three hours to erase memories of his loss in the first round last year, prevailing 4-6, 6-3, 6-3, 6-3.

The 14-time Grand Slam champion, who won his ninth French Open title earlier this month, will next face Lukas Rosol, who beat him here two years ago in the second round.

Australian Open champion Stan Wawrinka advanced to the second round with a 6-3, 6-4, 6-3 win over Joao Sousa of Portugal.

Wawrinka, who served 18 aces, lost in the first round at the French Open in his first Grand Slam since winning his inaugural major at Melbourne in January.

The Swiss player had had lost five times in the first round at Wimbledon, including the past two years.

Jo-Wilfried Tsonga needed just four points and two minutes to complete a five-set victory over Jurgen Melzer.

The 14th-seeded Frenchman was set to serve for the match at 5-4 in the deciding set when rain forced a suspension and eventually a postponement of the first-round match Monday.

Tsonga, a two-time semifinalist at Wimbledon, came back out Tuesday and held serve at love, finishing with his 20th ace, to complete a 6-1, 3-6, 3-6, 6-2, 6-4 win.

French Open champion Maria Sharapova defeated British wild-card entry Samantha Murray 6-1, 6-0.

The fifth-seeded Sharapova won her first Grand Slam title at the All England club 10 years ago as a 17-year-old and added her fifth last month in a three-set win over Simona Halep at Roland Garros.

On Tuesday, Sharapova was perfect in converting all five of her break-point opportunities, while Murray failed to break the Russian's serve in the 58-minute match. Murray also had six double-faults.

Last year's runner-up, Sabine Lisicki of Germany, advanced to the second round at Wimbledon on Tuesday with a 6-2 6-1 win in less than hour over Julia Glushko of Israel.

No. 20 women's seed Andrea Petkovic of Germany advanced past Poland's Katarzyna Piter, 6-1, 6-4.

With files from The Associated Press