New York is among at least four states that have decided against allowing legal betting on the upcoming fight between Mike Tyson and Jake Paul next week.

Pennsylvania, Colorado, and Vermont are also opting out of permitting bets on the boxing match set to pit the 58-year-old Tyson against 27-year-old Paul on November 15 in Arlington, Texas, according to YSL News Sports.

Richard McGarvey, a spokesperson for the Pennsylvania Gaming Control Board, said to YSL News Sports, “We view this as an unconventional boxing event, more akin to an exhibition. So we decided, ‘Not in Pennsylvania.’”

Brad Maione, the director of communications for the New York State Gaming Commission, confirmed via email that they will not allow wagering, explaining it’s due to it being an exhibition involving a former professional boxer. The NYS Gaming Commission can choose whether specific sports events qualify for betting. Generally, they do not permit exhibition matches or those with non-professional athletes.

While the Texas Department of Licensing and Regulation (TDLR) has sanctioned the Tyson-Paul fight as a professional bout, they’ve implemented non-traditional rules such as two-minute rounds and 14-ounce gloves instead of the standard three-minute rounds with 10-ounce gloves, which has caused concerns for some state sports betting regulators.

Paul has stated he agreed to the modified rules at Tyson’s request. The TDLR has accepted these rules at the behest of promoter Bryce Holden, associated with Most Valuable Promotions (MVP), which Paul co-founded. MVP is collaborating with Netflix to stream the fight live.

Colorado won’t allow betting on the fight since it “fails to meet the necessary industry standards in the state,” stated Derek Kuhn, a spokesperson for the Colorado Department of Revenue, in an email to YSL News Sports.

In Colorado, boxing matches approved for betting must adhere to the unified rules established by the Association of Boxing Commissions and Combative Sports, which stipulate three-minute rounds and 10-ounce gloves, as explained by Kuhn.

Kuhn elaborated, “Based on the Division of Gaming’s prior assessment of the fight, the requirements that were not met include glove weight and the fact that not all fighters are ranked professionally. The division has not received updates regarding any changes to this evaluation.”

Vermont has also decided against allowing wagering on the fight due to the two-minute rounds and 14-ounce gloves, according to Olivia Kantyka, the communications and legislative affairs director for the Vermont Department of Liquor and Lottery. New York highlighted similar concerns.

Kantyka told YSL News Sports, “The rule alterations were the primary issue for us.”

Johnny Avello, the director of sportsbook operations at DraftKings, mentioned that six states will not permit bets on the Tyson-Paul matchup, although the other two states have yet to confirm their stance.

Regarding the states rejecting wagers, Avello remarked, “Will people still tune in to watch the fight? Probably. However, I believe engagement would significantly increase if betting were available.”

McGarvey from Pennsylvania expressed that this isn’t the first time they’ve disallowed such events, citing other exhibitions including a match between Evander Holyfield and Vitor Belfort, and a fight featuring Floyd Mayweather Jr.

Holyfield was also 58 years old—just like Tyson will be on fight day—when he suffered a first-round TKO loss to Belfort, who was 44 at the time.

(This article has been updated with new information.)