The TWISTR Ratings are an iterative least-squares, score-based ratings system built in the spirit of an Elo model. Team ratings are agnostic to the final result of a game, as only the scoring margins are important when rating teams. No additional benefit is provided for a win or penalty for a loss. The TWISTR ratings for VOLLEYBALL incorporate two key concepts:
The RATING represents the number of sets a team would be favored by against an average opponent. Teams with a positive RATING are considered better than average, while teams with a negative RATING are considered worse than average. The RATING can be thought of as a composite of the INDEPENDENT (INDY) rating, in which the time a game was played does not matter, and the FORECASTER (CASTER) rating, where recent results are weighted more heavily.
Both the STRENGTH OF RECORD (SoR) and Z-SCORE (Z-SCR) are resume ratings - SoR only considers a team's win-loss record and is independent of margin of victory, while Z-SCR is a blend of RATING and SoR.
| TWISTR IHSAA TEAM RATINGS | SCHEDULE & RESUME | COMPONENT RATINGS | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
| 9 | Andrean | 1 | +3.02 | 30 | 3 | .761 | 3 | +.147 | 1 | +1.78 | 1 | +3.04 | 8 | +3.00 | 9 | |
| 15 | Covenant Christian | 2 | +2.27 | 24 | 4 | .853 | 5 | +.003 | 2 | +1.40 | 2 | +2.15 | 15 | +2.34 | 13 | |
| 30 | Monrovia | 3 | +1.37 | 17 | 12 | .672 | 1 | -.085 | 3 | +1.07 | 3 | +1.44 | 30 | +1.35 | 30 | |
| 31 | Boone Grove | 4 | +1.36 | 16 | 9 | .756 | 2 | -.117 | 4 | +1.02 | 4 | +1.27 | 32 | +1.42 | 29 | |
| 74 | University | 5 | -0.78 | 13 | 8 | .950 | 13 | -.332 | 6 | +0.22 | 6 | -0.68 | 70 | -0.82 | 76 | |
| 77 | Christel House | 6 | -0.86 | 18 | 7 | .964 | 14 | -.244 | 5 | +0.34 | 5 | -0.79 | 76 | -0.87 | 77 | |
| 81 | Hebron | 7 | -1.03 | 7 | 10 | .901 | 9 | -.489 | 9 | -0.07 | 8 | -1.07 | 81 | -1.01 | 81 | |
| 83 | Indianapolis Scecina | 8 | -1.16 | 11 | 11 | .907 | 10 | -.407 | 7 | +0.02 | 7 | -1.18 | 82 | -1.14 | 84 | |
| 86 | Park Tudor | 9 | -1.41 | 7 | 10 | .889 | 8 | -.477 | 8 | -0.14 | 9 | -1.46 | 85 | -1.37 | 86 | |
| 98 | North Putnam | 10 | -2.07 | 3 | 10 | .882 | 7 | -.655 | 11 | -0.55 | 11 | -2.06 | 93 | -2.11 | 98 | |
| RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
| 99 | Heritage Christian | 11 | -2.14 | 5 | 13 | .861 | 6 | -.586 | 10 | -0.46 | 10 | -2.09 | 96 | -2.15 | 99 | |
| 114 | Southwestern (Hanover) | 12 | -3.01 | 2 | 11 | .933 | 12 | -.779 | 13 | -0.95 | 13 | -3.15 | 119 | -2.93 | 114 | |
| 118 | Irvington Prep | 13 | -3.18 | 4 | 13 | .916 | 11 | -.682 | 12 | -0.84 | 12 | -3.25 | 121 | -3.13 | 117 | |
| 122 | Woodlan | 14 | -3.26 | 0 | 22 | .835 | 4 | -.832 | 14 | -1.08 | 14 | -3.23 | 120 | -3.27 | 122 | |
| 132 | Indianapolis Riverside | 15 | -5.14 | 0 | 4 | .999 | 15 | -.999 | 15 | -1.75 | 15 | -5.04 | 132 | -5.16 | 133 | |