Winning Rush matches earns you Ranking Points, which help you climb the leaderboard and improve your final rewards.
The stronger the opponent you defeat, the more points you can earn. Winning multiple matches in a row will promote you to higher tiers, increasing your Point Multiplier and allowing you to earn even more points per victory.
Losing a match may cause you to drop to a lower tier. Consecutive losses can have a greater impact on your progression, so maintaining a winning streak is key to maximizing your rewards.