TenZ’s tweet

But I think it has something to do with his previous act rank, which he was ranked #1 so the game is pushing him harder and he’s playing with lower elo people also, so he’s expected to frag and win.(2/2)

Edit: Riot’s staff responded saying they’re trying to be accurate about his leaderboard position. This means that the players ranked above him on #1-4 are doing better than him with better winrate and performance, even beating higher MMR players so he’s not gaining as much elo