Class | Lowest Range | Middle Range | Highest Range |
|---|---|---|---|
O* | 1540 | 1106 | 625 |
S+ | 2272 | 1927 | 1540 |
S | 2842 | 2576 | 2272 |
S- | 3271 | 3073 | 2842 |
A+ | 3578 | 3438 | 3271 |
A | 3784 | 3692 | 3578 |
A- | 3909 | 3855 | 3784 |
B+ | 3973 | 3947 | 3909 |
B | 3997 | 3989 | 3973 |
B- | 4000 | 4000 | 3997 |
C+ | 4003 | 4000 | 4000 |
C | 4027 | 4011 | 4003 |
C- | 4091 | 4053 | 4027 |
D+ | 4216 | 4145 | 4091 |
D | 4422 | 4308 | 4216 |
D- | 4729 | 4562 | 4422 |
F+ | 5158 | 4927 | 4729 |
F | 5728 | 5424 | 5158 |
F- | 6460 | 6073 | 5728 |
Z | 7375 | 6894 | 6460 |