An NBA referee bet on games he officiated during the 2000s and traded inside picks for cash
By Colin PetersonJuly 16, 2026
Where the evidence lands: Proven
That an NBA referee corrupted the games he officiated by betting on them and selling nonpublic information to gamblers, using his access and influence over calls to profit, and that this was not an isolated failure but a window onto a league that quietly steers playoff outcomes through its referees to lengthen series and increase television ratings and ticket sales.
Proven. The core claim is proven by the record: NBA referee Tim Donaghy pleaded guilty in August 2007 to two federal felonies, admitted betting on games he officiated across four seasons, and was sentenced to 15 months in prison for selling inside picks to gamblers. That much is documented and not in dispute. His wider, later accusations, that other referees and league executives fixed specific playoff games such as the 2002 Kings-Lakers Game 6, are a separate matter: the FBI found no evidence of it, an independent NBA-commissioned review reached the same conclusion, and the league denies it. This file rates the narrow, established claim as substantiated and marks the broad fixing allegation as not established.
Believed by: The narrow fact of Donaghy's betting is accepted across the mainstream, from the Justice Department to the NBA itself; his larger claim that the league scripts playoff outcomes retains a following among skeptical fans and remains a recurring talking point whenever a big-game officiating decision looks wrong
The full story
What he pleaded guilty to
Thirteen seasons in, in August 2007, Tim Donaghy pleaded guilty to two federal felonies: conspiracy to commit wire fraud and transmitting wagering information. He admitted betting on games he personally officiated across four seasons, and he went to federal prison.
The scheme was small and specific. Prosecutors described three men: professional gambler James Battista placed the bets, Donaghy's high-school friend Thomas Martino acted as go-between, and Donaghy supplied picks in coded language. Payments began at about $2,000 per winning pick and rose to $5,000.
That much is not contested by anyone, including Donaghy. It is the most concrete corruption finding in modern American sport, and this file rates it substantiated on the narrow claim without reservation.
Betting on games is not the same as fixing them
There is a distinction here that almost every retelling loses, and it is the one that matters most.
Federal investigators stated they found no evidence that Donaghy ever intentionally made a particular ruling to help a pick win, and the independent Pedowitz review said it could not contradict that conclusion. The proven offence was using inside knowledge, of crew assignments, of officiating tendencies, of player and team conditions, to bet more accurately than the public could.
That is still serious and still criminal. But it describes an official trading on information rather than manufacturing outcomes, and the difference is the whole distance between a corrupt individual and a fixed game. The record establishes the first. It does not establish the second.
What he said afterwards, and how to weigh it
Donaghy later made a much bigger claim, through a June 2008 letter filed by his lawyer and in subsequent interviews: that other referees and league officials rigged specific playoff games to extend series and boost ratings.
The letter described unnamed company men acting in what they took to be the league's interest, and the case usually attached to it is Game 6 of the 2002 Kings and Lakers series, which was genuinely lopsided at the free-throw line in the fourth quarter. Pedowitz examined the specific allegation and found no evidence the game was fixed.
Weighing this fairly means holding two things. Donaghy had access no outsider had, so his account is not worthless. He was also a convicted felon with a book to sell and an interest in recasting a personal betting scheme as a symptom of institutional rot. Uncorroborated, named nowhere, and rejected by the review that looked at it, the larger claim stays unproven.
One referee, permanent suspicion
The lasting effect of the case is out of proportion to its size, and that is the interesting part.
A single official, betting for himself over four seasons, has become the standing proof text for every claim that the NBA decides its own results. He is cited in arguments about games he never worked and seasons he was not present for.
That is because the case supplied something suspicion normally lacks: an actual conviction. Most sports conspiracy claims have no criminal case anywhere near them. This one does, and its existence gets borrowed to underwrite claims it does not support, which is the ordinary fate of a proven scandal sitting next to an unproven one.
A real crime, and a border that keeps getting crossed
The narrow claim is proven by guilty plea and prison sentence: a sitting NBA referee bet on games he officiated and sold inside picks.
Everything beyond it is a different matter with different evidence. Whether he shaped calls to serve his bets was investigated and not established. Whether other referees rigged playoff games rests on an uncorroborated letter from the same man, examined and not substantiated. Keeping those apart is the only way the proven part stays useful.
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What's still unexplained
- Investigators concluded Donaghy did not prove he threw calls to win bets, and he maintains his edge came from reading tendencies rather than rigging whistles. The precise mechanism behind his winning percentage, inside knowledge versus active manipulation, has never been resolved to everyone's satisfaction.
- The 2002 Game 6 free-throw disparity is a documented anomaly with an innocent explanation (a fouling, trailing team) and a sinister one (a steered game). Absent charges or corroboration, the episode stays ambiguous even though the fixing claim itself is not established.
- The Pedowitz review and the FBI cleared other referees of criminal betting, but both worked from interviews and available records rather than a confession from anyone but Donaghy. How completely such a review could have surfaced misconduct, had any existed, is an inherent limit of the finding.
Point by point
The claim: A sitting NBA referee bet on games he personally officiated.
What the record shows: This is established by Donaghy's own guilty plea and admissions. In August 2007 he pleaded guilty to two federal conspiracy felonies, and the record shows he admitted betting on games he worked across four seasons. The Justice Department's Eastern District of New York announced the case, and he was later sentenced to 15 months in prison. There is no serious dispute about this core fact.
The claim: He profited by selling inside picks to gamblers.
What the record shows: Prosecutors laid out a three-man operation: professional gambler James Battista placed bets, high-school friend Thomas Martino acted as go-between, and Donaghy supplied picks in coded language. Battista and Martino paid Donaghy for winning picks, starting around $2,000 and rising to $5,000 as the tips kept hitting. Both associates pleaded guilty in 2008, corroborating the structure of the scheme from their side.
The claim: Donaghy deliberately made calls to swing the point spread on games he had bet.
What the record shows: This narrower question is less settled than the betting itself. Federal investigators stated they found no evidence that Donaghy ever intentionally made a particular ruling to help his gambling pick win, and the independent Pedowitz review said it could not contradict that conclusion. Donaghy has insisted his knowledge of officiating tendencies, not manipulated whistles, drove his accuracy. So while the betting is proven, the claim that he actively rigged the action on the floor is not established as fact.
The claim: Two other referees fixed Game 6 of the 2002 Kings-Lakers series to force a seventh game.
What the record shows: This allegation comes from a June 2008 letter filed by Donaghy's lawyer, which described unnamed 'company men' referees acting in what they took to be the league's interest. The game itself was genuinely lopsided at the free-throw line in the fourth quarter, which is what keeps the suspicion alive. But it rests on secondhand attribution and produced no charges. The FBI told the NBA it had no information implicating other referees, and the NBA and David Stern denied the account. The claim is contested and not established.
The claim: The NBA systematically directs referees to steer outcomes and extend series for ratings and revenue.
What the record shows: The independent review by Lawrence Pedowitz, based on more than 200 interviews, found no evidence that the league asked referees to call games to favor particular teams or players, and no evidence any referee besides Donaghy bet on games or leaked information. Federal authorities likewise found no support for the broader manipulation claims. The review did find that some referees had broken now-relaxed anti-gambling rules with casino card games and golf-course wagers, a real but far narrower failing than orchestrated fixing.
The claim: Donaghy was a lone bad actor and the scandal ended there.
What the record shows: The evidence supports Donaghy as the only referee proven to have bet on and profited from games, but 'lone' understates the operation: two convicted co-conspirators moved the money and the bets. The narrow record is a corrupt referee working with outside gamblers. What it does not support, in either direction, is a comprehensive account of whether inside information alone can explain his winning rate, which is part of why the case still fuels debate.
Timeline
- 1994Tim Donaghy joins the NBA officiating staff. Over the next 13 seasons he works more than 700 regular-season games plus playoff assignments, building the record of access that the later scheme would exploit.
- 2003-2007By his own later admission, Donaghy bets on NBA games, including games he officiates, across the 2003-04, 2004-05, 2005-06, and 2006-07 seasons, drawing on nonpublic information available to him as a referee.
- 2006-12In Philadelphia, professional gambler James Battista and middleman Thomas Martino arrange to pay Donaghy for his betting picks. According to prosecutors they start at $2,000 per winning pick and, as the tips prove accurate, raise it to $5,000, with picks passed through Martino in coded language.
- 2007-07-09Donaghy resigns from the NBA as news breaks that the FBI is investigating a referee for betting on games. Commissioner David Stern calls it the act of a rogue, isolated criminal.
- 2007-08-15Donaghy surrenders and pleads guilty in federal court in Brooklyn to two felony counts: conspiracy to commit wire fraud and conspiracy to transmit wagering information across state lines. The Department of Justice announces the pleas.
- 2008-04Co-conspirators Thomas Martino and James Battista plead guilty; Martino to conspiracy to commit wire fraud and Battista to conspiracy to transmit wagering information. Both would receive prison terms shorter than Donaghy's.
- 2008-06-10A letter from Donaghy's attorney filed with the court broadens the story dramatically, alleging that two referees fixed Game 6 of the 2002 Kings-Lakers Western Conference Finals to force a Game 7 and that league officials manipulated games through referees to boost ratings. The NBA and Stern flatly deny it.
- 2008-07-29U.S. District Judge Carol Amon sentences Donaghy to 15 months in federal prison plus supervised release, calling him more culpable than his co-conspirators and noting that without him there was no scheme.
- 2008-10-02An independent review the NBA commissioned from attorney Lawrence Pedowitz reports that it found no evidence any referee other than Donaghy bet on games or leaked information, and no evidence the league directed referees to favor teams or players.
From the case file
The actual records: declassified, released, or leaked. We link straight to each document in its official archive, so you never have to take our word for it. Read the originals yourself.
Former NBA Referee and Two Others Charged in Gambling Scheme (press release)
The federal announcement of the case, laying out the two conspiracy felonies Donaghy pleaded to, the roles of co-conspirators Battista and Martino, and the pick-selling scheme. It is the primary document behind the substantiated core of this file.
Read the document: U.S. Department of Justice archive →Report to the Board of Governors of the National Basketball Association
The 133-page independent review, based on more than 200 interviews, that found no evidence any referee besides Donaghy bet on games or leaked information and no evidence the league steered referees to favor teams. It is the central document weighing against the broad fixing claim.
Read the document: ESPN document archive →Other case files that cite the same sources
Proven. The core claim is proven by the record: NBA referee Tim Donaghy pleaded guilty in August 2007 to two federal felonies, admitted betting on games he officiated across four seasons, and was sentenced to 15 months in prison for selling inside picks to gamblers. That much is documented and not in dispute. His wider, later accusations, that other referees and league executives fixed specific playoff games such as the 2002 Kings-Lakers Game 6, are a separate matter: the FBI found no evidence of it, an independent NBA-commissioned review reached the same conclusion, and the league denies it. This file rates the narrow, established claim as substantiated and marks the broad fixing allegation as not established.
Reviewed by Colin Peterson · Last reviewed September 2, 2026 · How we rate
Common questions
Is Donaghy NBA betting scandal true?
Proven. The core claim is proven by the record: NBA referee Tim Donaghy pleaded guilty in August 2007 to two federal felonies, admitted betting on games he officiated across four seasons, and was sentenced to 15 months in prison for selling inside picks to gamblers. That much is documented and not in dispute. His wider, later accusations, that other referees and league executives fixed specific playoff games such as the 2002 Kings-Lakers Game 6, are a separate matter: the FBI found no evidence of it, an independent NBA-commissioned review reached the same conclusion, and the league denies it. This file rates the narrow, established claim as substantiated and marks the broad fixing allegation as not established.
What is Donaghy NBA betting scandal?
Tim Donaghy spent 13 seasons as an NBA referee before a 2007 federal case ended his career and produced one of the most concrete corruption findings in modern American sports. The documented record is unambiguous: he pleaded guilty to conspiracy to commit wire fraud and to transmitting wagering information, admitted betting on games he w…
What does the evidence show?
This is established by Donaghy's own guilty plea and admissions. In August 2007 he pleaded guilty to two federal conspiracy felonies, and the record shows he admitted betting on games he worked across four seasons. The Justice Department's Eastern District of New York announced the case, and he was later sentenced to 15 months in prison.…
Why do people believe it?
The base fact is true and criminal, so the story starts from solid ground. Once you accept, correctly, that a referee really did bet on his own games and go to prison for it, the leap to 'so the whole thing is rigged' feels short even though the evidence for the larger claim is thin.
What is still unresolved?
Investigators concluded Donaghy did not prove he threw calls to win bets, and he maintains his edge came from reading tendencies rather than rigging whistles. The precise mechanism behind his winning percentage, inside knowledge versus active manipulation, has never been resolved to everyone's satisfaction.
Sources
- 1.Former NBA Referee and Two Others Charged in Gambling Scheme, U.S. Department of Justice, Eastern District of New York (2007)
- 2.Ex-NBA ref pleads guilty in betting scandal, CNN (2007)
- 3.Donaghy sentenced to 15 months in prison in gambling scandal, ESPN (2008)
- 4.2002 Lakers-Kings Game 6 at heart of Donaghy allegations, ESPN (2008)
- 5.From the archives: How former ref Tim Donaghy conspired to fix NBA games, ESPN (2019)
- 6.Report confirms Donaghy was the only corrupt referee, clears NBA, The Philadelphia Inquirer (2008)
- 7.Shamed Ref: NBA Playoffs Were Rigged, ABC News (2008)
- 8.2007 NBA betting scandal, Wikipedia (2026)
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