Liam Paro has beaten a six-to-one favorite, captured world titles in two weight classes and lost just once in 29 professional fights. Apparently, that is not enough to convince bookmakers he has much chance against Devin Haney. When the two champions meet December 19 at San Francisco’s Chase Center to unify the WBO and IBF welterweight titles, Haney will enter as an overwhelming favorite. Some bookmakers have priced him at 1/12, equivalent to a 92.3% implied probability of victory before accounting for the bookmaker’s margin. Such odds suggest something more decisive than a difference in championship credentials. They suggest that Paro’s particular strengths may be almost useless against the man standing opposite him. The question is whether the statistics support that extraordinary judgment—or whether the market has mistaken a favorable matchup for a nearly certain outcome.
Haney has built his career around an unusual form of dominance: denying opponents the opportunity to do what they do best. Across an 11-fight CompuBox sample, opponents landed just 20% of their punches, averaging 7.2 successful connections per round. Against Regis Prograis and Brian Norman Jr., the figures were even more severe. Between them, the two fighters landed just 95 punches across 24 rounds, fewer than four per round. Norman threw 399 punches against Haney in November 2025 and landed only 59. Haney, meanwhile, threw just 271 punches himself, yet scored a knockdown and won the decision. His success depends not on overwhelming opponents with activity but on controlling where exchanges occur, limiting opportunities and making relatively few successful punches count. It is a style that can make an opponent’s offensive ambition irrelevant.
For Paro, the troubling evidence comes from a fighter he has already faced. In December 2024, Richardson Hitchins defeated him in a closely contested junior welterweight championship fight, exposing the difficulty Paro can experience against a disciplined, defensively responsible boxer. Paro threw 483 punches but landed only 84, an accuracy rate of 17.4%. More revealing was his jab: 339 attempts produced just 53 connections. Hitchins landed 105 punches from only 351 attempts, doing considerably more with substantially less activity. The resemblance to Haney’s approach is difficult to ignore. Both fighters rely on their ability to manage distance, interrupt offensive rhythm and score without becoming entangled in prolonged exchanges. Paro’s problem against Hitchins was not a lack of effort. It was the inability to turn that effort into meaningful offense. Against Haney, whose broader statistical record suggests comparable defensive effectiveness, that problem could become even more pronounced.
Yet Paro’s career also offers a compelling argument against treating the outcome as inevitable. In June 2024, he traveled to Puerto Rico and defeated Subriel Matías, a champion who entered as at least a six-to-one favorite. Paro threw an extraordinary 1,106 punches that night, landing 267 and repeatedly frustrating an opponent accustomed to breaking challengers through relentless pressure. The victory demonstrated tactical discipline, endurance and an ability to win when expectations were overwhelmingly against him. His June 2026 victory over Lewis Crocker, secured by identical 115–113 scorecards, added another championship to his résumé. But neither opponent presented precisely the challenge Haney will pose. Matías encouraged exchanges; Haney specializes in avoiding them. And Haney himself has shown vulnerabilities. Ryan Garcia knocked him down three times in April 2024, although that result was subsequently overturned following a positive drug test. Against José Ramírez in May 2025, Haney landed only 70 punches over 12 rounds, demonstrating how little offense he sometimes produces even in convincing victories. Those examples do not eliminate his stylistic advantage, but they complicate the assumption that defensive superiority guarantees overwhelming control.
The betting market appears to recognize a genuine mismatch. Haney’s opponents historically struggle to land punches, while Paro’s most relevant defeat came against a boxer who disrupted his jab and neutralized his activity. Those findings offer a persuasive explanation for Haney’s status as a substantial favorite. What they cannot establish is the probability of victory with anything approaching the precision suggested by the odds. A 92% implied probability is not simply a declaration that one fighter is better; it is a statement that almost every plausible version of the contest ends the same way. The available statistics do not account fully for differences in opposition, weight classes, tactical adjustments or the volatility of individual exchanges. Nor do bookmaker prices, which incorporate a margin, represent an independently validated forecast. Haney has earned the market’s confidence through an exceptional ability to prevent opponents from scoring. Paro has earned his championship credentials by finding ways to win against fighters expected to beat him. On December 19, the question will not merely be whether Paro can hit Haney. It will be whether Haney can make another world champion’s opportunities disappear as completely as the odds suggest.