January 8 – Peyton Manning plays his final game in an Indianapolis Colts uniform, a 16–17 loss to the New York Jets in the wild-card round. The next season Manning would sit out the entire 2011 season to undergo neck surgeries and in that offseason, was released by the Colts and subsequently signed with the Denver Broncos in free agency, where he led them to 5 straight playoff appearances, Super Bowl XLVIII, and to their 3rd championship title in Super Bowl 50.
July 8–16 – The 2011 IFAF World Championship was held in Austria. The USA defeated Canada 50–7 in the gold medal match to win their second straight title.
January 29 – Timothy Bradley defeats Devon Alexander by a tenth round technical decision. The fight was stopped due to a cut Alexander had received from an accidental headbutt in the third round, which was made worse by two more headbutts in the eighth round and a final fourth headbutt in the tenth round. Both fighters came in with undefeated records and the fight was initially praised as one of the few good match-ups between two top-ranked Americans in recent years. With the win, Bradley unified the light welterweight titles by defending his WBO title and winning Alexander's WBC title.
February 19 – Nonito Donaire defeats Fernando Montiel by technical knockout in the second round to unify the WBO and WBC bantamweight titles. Donaire started the fight strong by controlling most of the first round, landing a left hook that briefly stunned Montiel. In the second round Donaire started landing a few combinations before finishing Montiel with a solid hook that knocked out his opponent.
March 19 – Vitali Klitschko knocks out Odlanier Solís in the first round to retain his WBC heavyweight title for the sixth time. The knockout came as a surprise after Solís appeared to have sustained serious knee injury. Initially following the stoppage, Vitali Klitschko was angry at Solís and felt he took a dive. However following the fight Solís was taken to a hospital, where a scan revealed tears to his anterior cruciate ligament and external meniscus, as well as cartilage damage in his right knee.[1]
The tournament was won by India who defeated Sri Lanka by 6 wickets. India became the first host-nation to win the world cup with final played in the host country itself. Captain Mahendra Singh Dhoni played a captain's knock of unbeaten 91 in the final and was adjudged man of the match.
Australian Cadel Evans won the race, having gained the lead in a time-trial on the penultimate day. He became the first Australian to win the race, and at 34, the oldest post-war winner.
This was also the final edition of the Tri Nations under that name. With the entry of Argentina in 2012, the competition was renamed The Rugby Championship.
