USATT rating system description
| Rating Point Difference | Normal Outcome | Upset Outcome | ||
|---|---|---|---|---|
| Winner | Loser | Winner | Loser | |
| 0 - 12 | 8 | -8 | 8 | -8 |
| 13 - 37 | 7 | -7 | 10 | -10 |
| 38 - 62 | 6 | -6 | 13 | -13 |
| 63 - 87 | 5 | -5 | 16 | -16 |
| 88 - 112 | 4 | -4 | 20 | -20 |
| 113 - 137 | 3 | -3 | 25 | -25 |
| 138 - 162 | 2 | -2 | 30 | -30 |
| 163 - 187 | 2 | -2 | 35 | -35 |
| 188 - 212 | 1 | -1 | 40 | -40 |
| 213 - 237 | 1 | -1 | 45 | -45 |
| 238 and up | 0 | -0 | 50 | -50 |