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 | |
| 1 | Indianapolis Roncalli | 1 | +6.00 | 17 | 0 | .383 | 1 | +.620 | 1 | +2.94 | 1 | +5.99 | 1 | +6.04 | 1 | |
| 7 | Leo | 2 | +2.88 | 12 | 0 | .824 | 18 | +.178 | 2 | +1.58 | 2 | +2.97 | 8 | +2.84 | 9 | |
| 11 | Indianapolis Cathedral | 3 | +2.68 | 12 | 6 | .508 | 4 | +.158 | 3 | +1.50 | 3 | +2.77 | 10 | +2.64 | 11 | |
| 16 | New Palestine | 4 | +2.22 | 12 | 4 | .709 | 7 | +.041 | 5 | +1.22 | 4 | +2.16 | 16 | +2.25 | 15 | |
| 20 | Columbia City | 5 | +1.97 | 13 | 3 | .753 | 11 | +.057 | 4 | +1.19 | 5 | +1.94 | 21 | +1.99 | 20 | |
| 23 | Indianapolis Chatard | 6 | +1.81 | 7 | 8 | .433 | 3 | +.036 | 6 | +1.12 | 6 | +1.97 | 18 | +1.72 | 25 | |
| 25 | Guerin Catholic | 7 | +1.73 | 9 | 6 | .650 | 5 | -.050 | 8 | +0.97 | 8 | +1.77 | 23 | +1.73 | 24 | |
| 26 | Madison | 8 | +1.45 | 15 | 3 | .838 | 21 | -.004 | 7 | +0.99 | 7 | +1.39 | 28 | +1.48 | 26 | |
| 38 | Brebeuf Jesuit | 9 | +0.73 | 1 | 7 | .399 | 2 | -.271 | 16 | +0.42 | 12 | +0.93 | 37 | +0.61 | 40 | |
| 40 | Fort Wayne Concordia | 10 | +0.59 | 10 | 4 | .827 | 20 | -.110 | 9 | +0.63 | 9 | +0.52 | 41 | +0.63 | 39 | |
| RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
| 42 | Norwell | 11 | +0.47 | 9 | 4 | .871 | 29 | -.183 | 10 | +0.49 | 10 | +0.56 | 40 | +0.43 | 45 | |
| 43 | Heritage | 12 | +0.43 | 5 | 6 | .734 | 9 | -.278 | 17 | +0.34 | 15 | +0.42 | 44 | +0.45 | 42 | |
| 44 | New Haven | 13 | +0.41 | 10 | 7 | .774 | 13 | -.187 | 12 | +0.48 | 11 | +0.42 | 45 | +0.44 | 43 | |
| 46 | Illiana Christian | 14 | +0.38 | 9 | 10 | .731 | 8 | -.256 | 15 | +0.36 | 13 | +0.38 | 46 | +0.38 | 46 | |
| 50 | Indianapolis Shortridge | 15 | +0.07 | 11 | 7 | .844 | 26 | -.232 | 13 | +0.33 | 16 | -0.14 | 55 | +0.18 | 50 | |
| 53 | Silver Creek | 16 | -0.08 | 2 | 4 | .706 | 6 | -.372 | 20 | +0.08 | 19 | -0.21 | 60 | -0.02 | 53 | |
| 55 | Greenwood | 17 | -0.13 | 11 | 6 | .881 | 30 | -.232 | 14 | +0.29 | 17 | -0.05 | 51 | -0.15 | 60 | |
| 56 | Hammond Noll | 18 | -0.13 | 5 | 6 | .775 | 14 | -.321 | 18 | +0.15 | 18 | -0.14 | 56 | -0.11 | 57 | |
| 61 | Evansville Memorial | 19 | -0.18 | 8 | 3 | .912 | 35 | -.186 | 11 | +0.35 | 14 | -0.26 | 64 | -0.15 | 59 | |
| 68 | New Castle | 20 | -0.42 | 5 | 6 | .870 | 28 | -.417 | 21 | -0.06 | 21 | -0.67 | 69 | -0.28 | 64 | |
| RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
| 74 | DeKalb | 21 | -0.90 | 3 | 10 | .749 | 10 | -.516 | 26 | -0.32 | 24 | -0.85 | 72 | -0.97 | 75 | |
| 75 | Beech Grove | 22 | -0.91 | 9 | 7 | .906 | 33 | -.345 | 19 | -0.06 | 20 | -0.98 | 74 | -0.87 | 74 | |
| 76 | Tri-West | 23 | -1.08 | 6 | 11 | .842 | 25 | -.490 | 24 | -0.31 | 23 | -1.15 | 76 | -1.04 | 77 | |
| 78 | Lebanon | 24 | -1.24 | 6 | 7 | .896 | 32 | -.435 | 23 | -0.26 | 22 | -1.28 | 79 | -1.21 | 78 | |
| 87 | Indianapolis Herron | 25 | -1.64 | 5 | 7 | .841 | 23 | -.424 | 22 | -0.34 | 25 | -1.62 | 84 | -1.66 | 89 | |
| 90 | East Noble | 26 | -1.70 | 2 | 5 | .809 | 15 | -.524 | 27 | -0.50 | 27 | -1.68 | 90 | -1.70 | 90 | |
| 93 | Fort Wayne Dwenger | 27 | -1.83 | 3 | 6 | .841 | 22 | -.503 | 25 | -0.50 | 26 | -1.74 | 91 | -1.88 | 93 | |
| 97 | Scottsburg | 28 | -2.10 | 1 | 7 | .823 | 17 | -.701 | 32 | -0.86 | 31 | -2.17 | 100 | -2.06 | 97 | |
| 100 | Bellmont | 29 | -2.17 | 1 | 7 | .767 | 12 | -.643 | 30 | -0.79 | 28 | -2.14 | 98 | -2.19 | 101 | |
| 105 | Hanover Central | 30 | -2.40 | 2 | 8 | .811 | 16 | -.612 | 29 | -0.79 | 29 | -2.38 | 104 | -2.42 | 106 | |
| RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
| 106 | Kankakee Valley | 31 | -2.48 | 2 | 12 | .842 | 24 | -.699 | 31 | -0.94 | 32 | -2.64 | 108 | -2.41 | 105 | |
| 107 | NorthWood | 32 | -2.58 | 1 | 4 | .922 | 36 | -.717 | 35 | -0.99 | 33 | -2.58 | 107 | -2.56 | 107 | |
| 112 | Indianapolis Attucks | 33 | -2.89 | 2 | 3 | .961 | 38 | -.560 | 28 | -0.82 | 30 | -2.79 | 109 | -2.96 | 113 | |
| 113 | Crawfordsville | 34 | -2.92 | 2 | 9 | .881 | 31 | -.701 | 33 | -1.04 | 34 | -2.86 | 110 | -2.96 | 112 | |
| 118 | Peru | 35 | -3.12 | 1 | 6 | .908 | 34 | -.765 | 37 | -1.18 | 35 | -3.18 | 118 | -3.10 | 116 | |
| 119 | Shelbyville | 36 | -3.22 | 1 | 19 | .825 | 19 | -.775 | 38 | -1.22 | 36 | -3.24 | 120 | -3.21 | 119 | |
| 125 | South Bend Washington | 37 | -3.55 | 0 | 3 | .849 | 27 | -.846 | 39 | -1.40 | 38 | -3.74 | 125 | -3.45 | 124 | |
| 129 | Purdue Poly Englewood | 38 | -4.28 | 2 | 7 | .927 | 37 | -.705 | 34 | -1.35 | 37 | -4.26 | 127 | -4.26 | 129 | |
| 134 | Indianapolis Washington | 39 | -5.80 | 1 | 3 | .984 | 39 | -.735 | 36 | -1.72 | 39 | -5.74 | 134 | -5.81 | 134 | |