WINNING STREAK
The rule is to have winning bets consecutively. It could be limitedly counted in only one game (table) to avoid dispute. The leaderboard including persons with most winning streak. The streak will count from the first qualify winning bet until there's a losing bet (payout below 1x). The following bets may be qualify for the Challenge:
1. All Slots game with payout 1x or above, excluding slots that offer risking the winning outcome to multiply it.
2. All Stake originals and Live casino games with payout 1.5-2x or above. Bets with 1-1.49x payout do not counted on the streak but do not end the streak either.
These can be separated into 2 leaderboard (one for slots and one for other games). If 2 or more users having a same winning streak, users with more total wager of winning bets have the advantage. This can also develop a Losing streak Challenge including games like Slots (bonus buy only), Baccarat, Crash/Limbo (only 2x cashout or below counted),...