Does BetMGM refund a tennis bet if a player retires?
Only before a full set is complete. After that the match bet stands and settles on the player who advances, so backing the player who retired is a losing bet rather than a refunded one.
Traditional sportsbooks · settlement rules
BetMGM tennis retirement and disqualification rules
A completed set makes the match bet stand, settling on whoever advances; anything earlier is voided. Retirement and disqualification are handled alike.
| Retirement | Disqualification |
|---|---|
| stands after one set | stands after one set |
Retirement and disqualification are written into the same sentence here, so the cause makes no difference to how you are paid.
The rule, in their words
“TENNIS - At least one set of the match must be completed.”
Where this comes from. That line is BetMGM's own, from the rules filed with the Massachusetts Gaming Commission, and it sets the one-set threshold. It is a minimum-length rule rather than a settlement rule, and BetMGM's full tennis section sits past the point where that filing stops being readable. Which way the market settles after that set is from our own trading experience.
Worth knowing
The minimum-length table is explicitly subordinate to the per-sport rules, so the tennis section could override it. BetMGM publishes per state; this is the Massachusetts filing.
Common questions
How many sets must be played for a BetMGM tennis bet to stand?
One. Their rules state it plainly - "TENNIS - At least one set of the match must be completed" - putting BetMGM with Pinnacle and Betfair rather than bet365 and William Hill.
Does BetMGM treat a tennis disqualification like a retirement?
Yes. Same one-set threshold, and the player who advances is settled as the winner.