Just did some observation and noticed that it every next level is 1.15 of the previous level EXP requirement. Meaning to say if my calculations are correct it would take 283 Straight wins to get from Rank 29 to Rank 30. That is not counting your process of Rank 1 - 29.
My Rank 15 to 16 took 1200 EXP, Rank 16 to 17 requires 1380 EXP.
Enjoy.~!
