Even after the Jamaican's unprecedented gold-medal sweep of the 100 meters, 200 meters and 400-meter relay in back-to-back Olympics, Rogge had suggested Bolt's career could be judged only when it was over.
But on Sunday, Rogge said: "Usain Bolt is an active-performance legend, he's an icon, he's the best sprinter of all times."
Men's marathon: Meb Keflezighi passed five runners over the final 12 kilometers but missed out on a medal, finishing fourth.
The American's time of 2 hours, 11 minutes, 6 seconds was more than three minutes behind winner Stephen Kiprotich of Uganda. Kiprotich won in 2:08:01, giving the country its first gold medal in track and field in 40 years.
Men's wrestling: Jake Varner tripped up Valeri Andriitsev of Ukraine 1-0, 1-0 in the 211-pound final to give the U.S. two men's wrestling golds for the first time since 1996.
Varner trains under 2004 Olympic gold medalist Cael Sanderson at the Nittany Lion Wrestling Club in State College, Pa.
"It's awesome to be coached by a guy like that," Varner said. "I owe him a lot. It means a lot to have him here with me."
Sanderson said one of Varner's winning traits is that he doesn't get too high or too low.
"That's one of the reasons he's so good," Sanderson said. "He has great composure. He's the man."
Men's volleyball: Russia came back from the brink to snatch the gold from No. 1-ranked Brazil.
By the time Dmitriy Muserskiy's final spike has given the Russians a 3-2 victory, they had come back from two sets down and saved two match points.
"I am just ecstatic," Muserskiy said. "The team put their trust in me, and it was last-chance saloon."
The final score was 19-25, 20-25, 29-27, 25-22, 15-9.
Modern pentathlon: It's not quite the fraction of a second that separates medalists from also-rans in other sports, but in modern pentathlon, in which scores run into four digits, U.S. competitor Margaux Isaksen missed out on a bronze by a mere eight points.
The women's pentathlon, the final competition of the the Summer Olympics, handed out medals just hours before the closing ceremony. Gold went to Laura Asadauskaite of Lithuania, who finished with an Olympic-record 5,408 points. Silver went to Britain's Samantha Murray, while bronze was won by Brazil's Yane Marques.
The other U.S. competitor, Suzanne Stettinius, finished 28th.
Tribune Olympic Bureau contributed
Olympics-Cycling-Lights out for the man from Guam
Olympics-UPDATE 2-UK's Cameron turns cheerleader after gold rush
UPDATE 1-Olympics-Cameron appoints Coe as Games legacy ambassador
Olympics-Athletics-London marathon would love to lure Farah
Olympics-Wrestling-Azeri returns from hospital to win bronze
Olympics-Colombia runner Palomeque banned for testosterone use