Second seed Novak Djokovic advanced to the third round at Wimbledon with a straightforward 6-3 6-4 6-2 win over South Africa's Kevin Anderson.
The Serb raced into a 5-0 lead in the first 15 minutes and, although Anderson established more of a foothold, his service regularly looked vulnerable.
The world number 36 matched Djokovic in the second set before surrendering the vital seventh game and any real hope.
Djokovic will play Cypriot 32nd seed Marcos Baghdatis in the next round.
"In these conditions I think efficiency is the right word, especially with the serve," he told BBC Sport.
"It is better to go for a high percentage on the first serve rather than the speed because of the wind. But I think I served well and I returned well which was key.
"I am really satisfied with the performances I have had in the first two rounds.
"It can be difficult in the first few rounds when you are playing lower-ranked players who don't have anything to lose.
"I do have a different approach to Wimbledon. Because of the winning streak I had, the confidence is very high, it makes it easier. You believe in yourself, you're one of the best players in the world and you know that you can win against anybody."
The 24-year-old will be installed as world number one if he makes the tournament's final and his assault on the summit of the men's game rarely looked like being derailed.
Anderson fell victim to Djokovic twice during the world number two's 43-match unbeaten run earlier this year and suffered two swift breaks in the early stages of the match.
A brief rally came too late to salvage the opener, but Anderson posed more of a challenge in the second with one finely weighted drop shot drawing applause from Djokovic.
His efforts were undone however in one careless service game as he fired into the net off a sharp return to allow Djokovic a break to love.
A lapse in concentration from Djokovic gave Anderson a chance to recover from the break he had inflicted early in the third.
But the Australian Open champion faced down three break points in the sixth game before whisking the remainder of the match away from his opponent.
Elsewhere, 13th seed Viktor Troicki suffered a 7-6 (7-5) 6-4 6-4 defeat by Taiwan's Yen-Hsun Lu, while Xavier Malisse took out 20th seed Florian Mayer of Germany with a 1-6 6-3 6-2 6-2 victory on Court 17.
Juan Martin del Potro reached the third round with a 6-7 (7-9) 6-1 6-0 6-4 win over Olivier Rochus, winning 18 of 23 games as their match resumed after being halted by darkness on Wednesday.
Spain's 16th seed Nicolas Almagro beat American John Isner 7-6 (7-3) 7-6 (7-5) 6-7 (3-7) 6-3, but compatriot and 26th seed Guillermo Garcia-Lopez will also play no further part after he was beaten 7-6 (7-5) 6-4 3-6 6-4 by Slovakia's Karol Beck.
French 12th seed Jo-Wilfried Tsonga survived a scare against Bulgaria's Grigor Dimitrov, dropping the first set on a tie-break before going on to win 6-7 (4-7) 6-4 6-4 7-6 (10-8).