Why am I not in top 500 leaderboard

i've hit master 5 on tank this season which qualifies for t500. however, i am not on the leaderboard despite having won 35 games and having gotten the seasoned competitor title.

there are diamond 1 players on the leaderboard and i'm currently m5.

i've also considered the fact that leavers in my games may not allow for it to be considered as a win. additionally, i've also authenticated my account with sms protect and 2fa and logged in and out of the account.

any ideas as to why this is the case? thanks!