For roughly four NBA seasons, referee Tim Donaghy turned privileged officiating knowledge into a private betting operation. Donaghy later admitted that he wagered on NBA games during the 2003–04, 2004–05, 2005–06, and 2006–07 seasons, including games he personally officiated. He passed coded tips to high-school classmate Tommy Martino and professional gambler James “Jimmy” Battista, using information about players’ injuries, physical condition, referee-player relationships, and other inside details. Donaghy claimed he received about $30,000 for his information, but Martino said the payments totaled roughly $120,000 between December 2006 and April 2007, while Battista put the figure at approximately $201,000–$209,000. Donaghy’s fee reportedly rose from $2,000 to $5,000 per successful pick, and co-conspirators said his most valuable selections were generally games he himself was assigned to referee.
The scandal became public in July 2007 after reports of an FBI investigation identified Donaghy as the official under scrutiny. He surrendered on August 15, pleaded guilty to two federal conspiracy charges, and acknowledged using coded language to communicate betting information. The NBA initially characterized him as a rogue official, but the case severely damaged confidence in the league’s officiating and exposed how valuable referee assignments and insider relationships could be to gamblers. Donaghy also claimed to have a serious gambling addiction and had been taking medication for it. On July 29, 2008, Judge Carol Bagley Amon sentenced him to 15 months in federal prison and three years of supervised release, declaring that without Donaghy there would have been no scheme. He was released on November 4, 2009. Subsequent research into betting records found unusual patterns in games he officiated, including a sharp increase in results exceeding sportsbook expectations and a run of ten games in 2007 in which the betting line moved substantially before tipoff and the heavily backed side won. The NBA responded with stricter referee gambling rules, earlier announcement of referee assignments, expanded background checks, additional counseling and training, and plans to monitor statistical links between officials and betting patterns.
Follow the sources
Status and citations are supplied by the archive. AI concept art is an interpretation, not historical evidence.