I just got it. I won the game 5-0. Pause the game and look at match facts. My Total Shots were 16, and my shots on target was 12. 12/16 = .75 = 75%. So just win the match and make sure Total Shots is MORE than 10 (At least 11). And that Shots on Target / Total Shots = .70 or more. I hope this helps. Sorry for the math lesson!
UPDATE: According to KINGvJAMES, The number of shots cannot be exactly 10. It has to be MORE than 10.