PokerStars is the world's largest online poker site, licensed and regulated in multiple jurisdictions. PokerStars offers STAR SUB feature on qualifying player-based outcome bets - if your selected player is replaced, the bet can be fulfilled by either the original player or their substitute. Available in multiple countries including US states (New Jersey, Pennsylvania, Michigan), UK, Europe, and Canada.

PokerStars offers STAR SUB on selected player prop markets. This feature works exactly like Super Sub: if your selected player gets substituted during the match, your bet automatically transfers to the replacement player and continues.