Nadal played more than 5 days in a row at 2007 Wimbledon.
After the first Friday, everything was on schedule. The Saturday was a day of persistent showers (no roof then), so a lot of matches from the bottom half of the draw never got completed that day. The weather forecast for the Sunday was plenty of sunshine and dry all day, while on Monday, Tuesday and Wednesday the forecast was full of persistent scattered showers in the London area. The Wimbledon referee, Andrew Jarrett, decided not to play on the Middle Sunday, which was obviously a bad mistake.
Nadal started his third round match against Soderling on the Saturday, and didn't finish it until the Wednesday due to the bad weather and no play on the Sunday, with Nadal and Soderling going on and off the court 12 times. Nadal then played his fourth round match against Youzhny on the Thursday, coming from 2 sets down to win. Nadal then played Berdych in the quarter finals on the Friday (Berdych led Nadal 3-2 in the head-to-head at the time) and Nadal won in straight sets despite many pundits predicting a Berdych win. Nadal then played Djokovic on the Saturday, Djokovic himself having won delayed marathons against Hewitt and Baghdatis. Djokovic started better against Nadal and won the first set, but then Nadal took control before Djokovic retired with blisters on his feet in the third set. Then Nadal had to play Federer in the final on the Sunday, losing in 5 sets, despite having 4 break points in the fifth set and blew the lot.
So, Nadal played every day from Monday to Sunday in the second week of 2007 Wimbledon. Federer had the opposite issue, having completed his first 3 matches on schedule (Monday, Wednesday, Friday) and then his fourth round opponent Haas pulled out to give Federer a walkover, so Federer went nearly a week without playing a match.
To be honest, I still can't believe that the referee didn't sanction Middle Sunday play at 2007 Wimbledon, knowing it would be sunny all day and that Monday-Wednesday was littered with scattered showers all over London.