Mardy Fish will enter the second week of the men's singles title at Wimbledon is the only American remaining after beating Dutchman Robin Haas in the third round on Saturday.
Fish was ranked tenth, ahead 6-3, 6-7, 6-2, 1-1 before Haas withdrew with a knee injury.
After the loss of Andy Roddick in straight sets to Feliciano Lopez on Friday continued bilateral U.S. Fish and Alex Bogomolov the day before to come out Bogomolov to Czech Tomas Berdych and runners 2010.
Bogomolov said after losing to the Czech player 6-2, 6-4, 6-3, "Mardy continues to play nicely. I think he can progress because it offers a strong performance on the grasslands."
"The sad not to see more from the Americans, but I think that Ryan Harrison made a good performance here. On the personal side I will start the season ready to play to land a solid favorite."
Fish were able to win the first set and seemed about to win the second set when the result is at 5-5 but squandered several chances to break his opponent and paid the price for that loss of the tie-break 7-5.
Fish and lifting of a 29-year-old level in the third set easily resolved by the opponent to retreat in the fourth set.
Fish will play in the fourth round of the competition on Monday against Berdych.
The nine players participated in a U.S. tournament.