My absolutely 100% un-scientific guesses at tour card cutoffs. My understanding is the tiebreaker is 4th round score, then 3rd, 2nd, 1st etc
Platinum (45 players): -44 with a 59 in the final round
Elite (140 players): -33
Kinetic (140 players): -26 with 63 final round and 67 third round
CC-A (130): -22 with 67 final round and 68 third round
CC-B (130): -18 with 68 final round and 67 third round
CC-C (131): -14 with 67 final round and 70 third round
CC-D (132): -11
CC-E (130): -7 with 67 final round
CC-F (130): -4 with 68 final round
CC-G (130): -E with 67 final round and 70 third round
CC-H (131): +3
CC-I (130): +7
CC-J (130): +12 with 74 final round and 73 third round
CC-K (130): +18 with 74 final round and 76 third round
CC-L (130): +24
Total tour cards issued = 1889
Players who completed all 4 rounds = 2251
Players who did not complete all 4 rounds = 227
If additional levels are added, then the cutoffs could be:
CC-M (129): +33 with a 77 final round
CC-N (130): +51