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 | |
| 8 | Andrean | 1 | +2.86 | 20 | 2 | .744 | 3 | +.166 | 1 | +1.60 | 1 | +2.86 | 9 | +2.85 | 8 | |
| 19 | Monrovia | 2 | +2.05 | 12 | 7 | .569 | 1 | +.062 | 2 | +1.28 | 2 | +1.97 | 20 | +2.10 | 19 | |
| 29 | Boone Grove | 3 | +1.31 | 9 | 5 | .714 | 2 | -.070 | 4 | +0.93 | 4 | +1.13 | 34 | +1.40 | 27 | |
| 30 | Covenant Christian | 4 | +1.30 | 8 | 2 | .829 | 7 | -.026 | 3 | +0.99 | 3 | +1.19 | 31 | +1.34 | 30 | |
| 48 | University | 5 | +0.25 | 10 | 3 | .925 | 14 | -.155 | 6 | +0.58 | 5 | +0.21 | 48 | +0.29 | 47 | |
| 62 | Christel House | 6 | -0.21 | 11 | 3 | .895 | 12 | -.112 | 5 | +0.55 | 6 | -0.07 | 52 | -0.27 | 63 | |
| 77 | North Putnam | 7 | -1.13 | 3 | 5 | .819 | 6 | -.444 | 9 | -0.13 | 8 | -1.36 | 81 | -1.01 | 76 | |
| 80 | Indianapolis Scecina | 8 | -1.25 | 6 | 4 | .877 | 11 | -.280 | 7 | +0.09 | 7 | -1.22 | 77 | -1.26 | 80 | |
| 81 | Hebron | 9 | -1.37 | 4 | 7 | .836 | 8 | -.472 | 11 | -0.22 | 9 | -1.38 | 82 | -1.36 | 81 | |
| 88 | Heritage Christian | 10 | -1.65 | 3 | 6 | .794 | 5 | -.461 | 10 | -0.26 | 10 | -1.65 | 88 | -1.65 | 88 | |
| RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
| 92 | Park Tudor | 11 | -1.81 | 4 | 6 | .838 | 9 | -.438 | 8 | -0.26 | 11 | -1.65 | 87 | -1.89 | 95 | |
| 120 | Irvington Prep | 12 | -3.26 | 2 | 8 | .899 | 13 | -.700 | 12 | -0.94 | 12 | -3.28 | 121 | -3.26 | 120 | |
| 122 | Woodlan | 13 | -3.39 | 0 | 15 | .765 | 4 | -.765 | 13 | -1.07 | 13 | -3.32 | 122 | -3.42 | 122 | |
| 127 | Southwestern (Hanover) | 14 | -4.18 | 0 | 5 | .871 | 10 | -.869 | 14 | -1.38 | 14 | -4.49 | 129 | -4.03 | 127 | |
| 132 | Indianapolis Riverside | 15 | -5.34 | 0 | 4 | .954 | 15 | -.954 | 15 | -1.75 | 15 | -5.22 | 132 | -5.40 | 132 | |