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 | ||||||||||||||
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RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
1 | Indianapolis Roncalli | 1 | +6.36 | 35 | 0 | .592 | 4 | +.408 | 1 | +2.66 | 1 | +6.44 | 1 | +6.31 | 1 | |
5 | Tri-West | 2 | +5.35 | 33 | 4 | .576 | 3 | +.318 | 2 | +2.28 | 2 | +5.43 | 4 | +5.31 | 5 | |
17 | Indianapolis Cathedral | 3 | +4.11 | 22 | 10 | .524 | 1 | +.163 | 3 | +1.74 | 3 | +4.17 | 16 | +4.08 | 17 | |
19 | Angola | 4 | +4.02 | 32 | 5 | .752 | 15 | +.112 | 4 | +1.64 | 4 | +3.95 | 21 | +4.05 | 18 | |
22 | NorthWood | 5 | +3.82 | 30 | 7 | .712 | 8 | +.098 | 5 | +1.57 | 5 | +3.80 | 23 | +3.82 | 21 | |
23 | Northview | 6 | +3.81 | 30 | 2 | .874 | 32 | +.064 | 6 | +1.51 | 6 | +3.96 | 19 | +3.73 | 23 | |
28 | Hamilton Heights | 7 | +3.50 | 25 | 5 | .798 | 18 | +.037 | 8 | +1.39 | 7 | +3.47 | 31 | +3.52 | 26 | |
29 | New Castle | 8 | +3.48 | 25 | 10 | .731 | 11 | -.016 | 12 | +1.30 | 10 | +3.49 | 28 | +3.48 | 29 | |
31 | Brebeuf Jesuit | 9 | +3.40 | 12 | 12 | .536 | 2 | -.036 | 14 | +1.24 | 12 | +3.43 | 34 | +3.39 | 30 | |
32 | Hammond Noll | 10 | +3.39 | 27 | 4 | .832 | 24 | +.039 | 7 | +1.37 | 8 | +3.46 | 32 | +3.34 | 32 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
33 | Jennings County | 11 | +3.37 | 26 | 9 | .727 | 10 | +.016 | 9 | +1.33 | 9 | +3.44 | 33 | +3.33 | 33 | |
39 | New Palestine | 12 | +3.21 | 29 | 5 | .838 | 27 | +.015 | 10 | +1.29 | 11 | +3.31 | 37 | +3.16 | 39 | |
40 | Silver Creek | 13 | +3.19 | 21 | 12 | .687 | 7 | -.052 | 15 | +1.17 | 14 | +3.29 | 38 | +3.14 | 41 | |
44 | Danville | 14 | +2.96 | 24 | 7 | .780 | 17 | -.005 | 11 | +1.20 | 13 | +3.19 | 40 | +2.85 | 46 | |
46 | West Lafayette | 15 | +2.86 | 25 | 6 | .894 | 40 | -.086 | 18 | +1.04 | 16 | +2.83 | 48 | +2.87 | 45 | |
52 | Leo | 16 | +2.66 | 24 | 7 | .800 | 19 | -.027 | 13 | +1.10 | 15 | +2.65 | 53 | +2.67 | 52 | |
53 | Fort Wayne Dwenger | 17 | +2.60 | 17 | 9 | .724 | 9 | -.069 | 16 | +1.02 | 17 | +2.69 | 52 | +2.48 | 53 | |
54 | Fort Wayne Concordia | 18 | +2.45 | 15 | 13 | .657 | 5 | -.122 | 21 | +0.89 | 20 | +2.53 | 55 | +2.40 | 56 | |
56 | Jasper | 19 | +2.42 | 23 | 11 | .755 | 16 | -.076 | 17 | +0.96 | 18 | +2.54 | 54 | +2.37 | 58 | |
58 | Batesville | 20 | +2.40 | 27 | 5 | .942 | 66 | -.098 | 19 | +0.92 | 19 | +2.36 | 61 | +2.42 | 55 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
63 | Evansville Memorial | 21 | +2.20 | 16 | 12 | .749 | 14 | -.176 | 26 | +0.74 | 22 | +2.27 | 63 | +2.14 | 63 | |
68 | Greensburg | 22 | +2.01 | 23 | 7 | .911 | 53 | -.144 | 23 | +0.76 | 21 | +2.02 | 69 | +2.02 | 69 | |
73 | New Prairie | 23 | +1.94 | 23 | 12 | .821 | 22 | -.165 | 25 | +0.70 | 24 | +1.96 | 73 | +1.92 | 73 | |
78 | West Noble | 24 | +1.78 | 25 | 8 | .910 | 51 | -.153 | 24 | +0.69 | 25 | +1.83 | 77 | +1.75 | 77 | |
79 | Delta | 25 | +1.77 | 9 | 11 | .673 | 6 | -.222 | 31 | +0.57 | 28 | +1.87 | 76 | +1.72 | 79 | |
81 | Illiana Christian | 26 | +1.74 | 20 | 8 | .854 | 28 | -.139 | 22 | +0.71 | 23 | +1.76 | 81 | +1.69 | 82 | |
83 | Indianapolis Chatard | 27 | +1.65 | 18 | 11 | .808 | 20 | -.187 | 27 | +0.61 | 27 | +1.68 | 83 | +1.63 | 84 | |
86 | Mishawaka Marian | 28 | +1.57 | 17 | 14 | .829 | 23 | -.282 | 37 | +0.42 | 31 | +1.54 | 87 | +1.58 | 87 | |
90 | Guerin Catholic | 29 | +1.48 | 14 | 18 | .732 | 12 | -.293 | 39 | +0.38 | 34 | +1.51 | 91 | +1.45 | 90 | |
93 | Heritage Hills | 30 | +1.38 | 21 | 10 | .923 | 59 | -.245 | 34 | +0.45 | 30 | +1.42 | 93 | +1.35 | 94 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
98 | East Noble | 31 | +1.28 | 17 | 12 | .878 | 34 | -.291 | 38 | +0.34 | 35 | +1.22 | 103 | +1.31 | 96 | |
99 | Lawrenceburg | 32 | +1.26 | 22 | 7 | .964 | 86 | -.207 | 29 | +0.49 | 29 | +1.37 | 95 | +1.22 | 102 | |
105 | Indian Creek | 33 | +1.19 | 19 | 5 | .912 | 56 | -.120 | 20 | +0.62 | 26 | +1.04 | 112 | +1.26 | 98 | |
108 | Plymouth | 34 | +1.16 | 14 | 16 | .860 | 29 | -.395 | 53 | +0.13 | 43 | +1.14 | 106 | +1.16 | 107 | |
112 | Lebanon | 35 | +1.05 | 8 | 16 | .733 | 13 | -.399 | 54 | +0.10 | 47 | +1.09 | 107 | +1.02 | 114 | |
114 | Jay County | 36 | +1.02 | 15 | 12 | .877 | 33 | -.320 | 43 | +0.24 | 38 | +0.99 | 116 | +1.04 | 113 | |
119 | Scottsburg | 37 | +0.93 | 22 | 11 | .883 | 37 | -.215 | 30 | +0.40 | 33 | +0.93 | 119 | +0.93 | 118 | |
121 | Norwell | 38 | +0.92 | 20 | 13 | .948 | 74 | -.342 | 46 | +0.18 | 41 | +0.79 | 129 | +1.02 | 115 | |
124 | Heritage | 39 | +0.87 | 20 | 14 | .895 | 42 | -.306 | 40 | +0.23 | 39 | +0.84 | 126 | +0.90 | 121 | |
126 | Speedway | 40 | +0.86 | 18 | 9 | .941 | 65 | -.274 | 36 | +0.29 | 36 | +0.89 | 125 | +0.86 | 126 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
130 | Frankfort | 41 | +0.79 | 22 | 10 | .882 | 36 | -.195 | 28 | +0.41 | 32 | +0.84 | 127 | +0.75 | 129 | |
131 | Culver Academy | 42 | +0.71 | 18 | 14 | .911 | 52 | -.350 | 48 | +0.12 | 45 | +0.79 | 130 | +0.67 | 132 | |
133 | DeKalb | 43 | +0.68 | 20 | 11 | .902 | 45 | -.257 | 35 | +0.28 | 37 | +0.74 | 132 | +0.66 | 133 | |
134 | Kankakee Valley | 44 | +0.60 | 20 | 12 | .941 | 64 | -.315 | 42 | +0.16 | 42 | +0.59 | 136 | +0.60 | 135 | |
138 | Washington | 45 | +0.51 | 20 | 13 | .948 | 73 | -.342 | 47 | +0.09 | 49 | +0.54 | 137 | +0.51 | 142 | |
140 | Cascade | 46 | +0.49 | 19 | 13 | .931 | 60 | -.336 | 44 | +0.10 | 48 | +0.45 | 145 | +0.54 | 139 | |
150 | Tippecanoe Valley | 47 | +0.41 | 19 | 13 | .905 | 48 | -.312 | 41 | +0.12 | 44 | +0.31 | 162 | +0.46 | 145 | |
151 | South Dearborn | 48 | +0.40 | 15 | 12 | .964 | 85 | -.410 | 56 | -0.05 | 54 | +0.41 | 149 | +0.40 | 151 | |
158 | Gibson Southern | 49 | +0.33 | 13 | 13 | .904 | 46 | -.403 | 55 | -0.06 | 56 | +0.42 | 147 | +0.28 | 160 | |
159 | Edgewood | 50 | +0.33 | 17 | 15 | .904 | 47 | -.372 | 51 | -0.00 | 52 | +0.29 | 163 | +0.35 | 156 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
161 | Crawfordsville | 51 | +0.31 | 16 | 13 | .907 | 50 | -.355 | 49 | +0.02 | 51 | +0.35 | 157 | +0.29 | 159 | |
163 | Maconaquah | 52 | +0.28 | 19 | 12 | .954 | 79 | -.341 | 45 | +0.04 | 50 | +0.28 | 165 | +0.28 | 163 | |
165 | Charlestown | 53 | +0.27 | 22 | 9 | .945 | 69 | -.236 | 33 | +0.22 | 40 | +0.38 | 154 | +0.20 | 170 | |
166 | Fairfield | 54 | +0.24 | 10 | 18 | .836 | 26 | -.480 | 62 | -0.21 | 60 | +0.23 | 168 | +0.24 | 167 | |
168 | Madison | 55 | +0.23 | 15 | 17 | .881 | 35 | -.413 | 57 | -0.09 | 57 | +0.29 | 164 | +0.21 | 169 | |
172 | John Glenn | 56 | +0.15 | 20 | 12 | .981 | 96 | -.356 | 50 | -0.01 | 53 | +0.21 | 169 | +0.11 | 174 | |
174 | Connersville | 57 | +0.14 | 17 | 13 | .947 | 70 | -.380 | 52 | -0.06 | 55 | +0.11 | 177 | +0.16 | 171 | |
177 | South Bend St. Joseph | 58 | +0.06 | 8 | 15 | .868 | 30 | -.522 | 70 | -0.32 | 62 | +0.12 | 176 | +0.03 | 180 | |
181 | Vincennes Lincoln | 59 | +0.03 | 13 | 17 | .887 | 38 | -.453 | 59 | -0.21 | 59 | +0.26 | 166 | -0.08 | 185 | |
182 | Mississinewa | 60 | -0.00 | 18 | 15 | .971 | 90 | -.424 | 58 | -0.16 | 58 | +0.00 | 182 | -0.01 | 181 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
194 | Columbia City | 61 | -0.22 | 11 | 18 | .835 | 25 | -.455 | 60 | -0.26 | 61 | -0.23 | 195 | -0.22 | 192 | |
197 | Indianapolis Herron | 62 | -0.27 | 24 | 9 | .962 | 83 | -.235 | 32 | +0.11 | 46 | -0.14 | 191 | -0.36 | 199 | |
201 | Hanover Central | 63 | -0.38 | 14 | 18 | .951 | 76 | -.513 | 68 | -0.40 | 63 | -0.40 | 203 | -0.36 | 200 | |
213 | New Haven | 64 | -0.67 | 12 | 17 | .912 | 55 | -.497 | 64 | -0.43 | 64 | -0.49 | 207 | -0.75 | 216 | |
218 | Shelbyville | 65 | -0.76 | 7 | 25 | .815 | 21 | -.595 | 74 | -0.63 | 70 | -0.80 | 223 | -0.74 | 214 | |
220 | Princeton | 66 | -0.80 | 11 | 19 | .976 | 95 | -.609 | 76 | -0.66 | 73 | -0.81 | 225 | -0.79 | 220 | |
223 | Boonville | 67 | -0.84 | 10 | 16 | .899 | 44 | -.514 | 69 | -0.50 | 66 | -0.75 | 218 | -0.88 | 224 | |
225 | Logansport | 68 | -0.86 | 14 | 16 | .947 | 71 | -.481 | 63 | -0.45 | 65 | -0.79 | 221 | -0.90 | 225 | |
226 | Wawasee | 69 | -0.89 | 6 | 18 | .907 | 49 | -.657 | 86 | -0.76 | 75 | -0.85 | 227 | -0.91 | 229 | |
229 | Lowell | 70 | -0.92 | 10 | 20 | .921 | 58 | -.587 | 73 | -0.65 | 72 | -0.93 | 228 | -0.92 | 230 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
231 | Western | 71 | -0.93 | 14 | 18 | .960 | 82 | -.523 | 71 | -0.53 | 69 | -0.96 | 230 | -0.91 | 227 | |
232 | Northwestern | 72 | -0.94 | 14 | 17 | .958 | 81 | -.506 | 65 | -0.51 | 67 | -1.01 | 235 | -0.91 | 228 | |
240 | Southridge | 73 | -1.09 | 8 | 19 | .951 | 77 | -.656 | 85 | -0.80 | 76 | -1.03 | 238 | -1.12 | 243 | |
246 | Garrett | 74 | -1.16 | 9 | 18 | .949 | 75 | -.617 | 80 | -0.75 | 74 | -1.18 | 249 | -1.15 | 246 | |
247 | Highland | 75 | -1.17 | 12 | 19 | .942 | 68 | -.555 | 72 | -0.64 | 71 | -1.16 | 246 | -1.17 | 247 | |
248 | Greenwood | 76 | -1.17 | 4 | 25 | .893 | 39 | -.756 | 89 | -1.00 | 82 | -1.19 | 252 | -1.17 | 248 | |
252 | North Harrison | 77 | -1.21 | 13 | 15 | .942 | 67 | -.478 | 61 | -0.52 | 68 | -1.18 | 251 | -1.23 | 253 | |
269 | Corydon Central | 78 | -1.54 | 9 | 20 | .948 | 72 | -.637 | 83 | -0.87 | 79 | -1.53 | 269 | -1.54 | 268 | |
274 | Peru | 79 | -1.71 | 11 | 19 | .982 | 97 | -.614 | 77 | -0.86 | 78 | -1.58 | 272 | -1.77 | 278 | |
280 | Rushville | 80 | -1.80 | 11 | 20 | .970 | 89 | -.615 | 79 | -0.88 | 80 | -1.77 | 279 | -1.82 | 280 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
288 | Franklin County | 81 | -1.97 | 5 | 26 | .970 | 88 | -.809 | 93 | -1.26 | 91 | -2.00 | 291 | -1.95 | 286 | |
290 | Mount Vernon (Posey) | 82 | -1.98 | 4 | 21 | .934 | 62 | -.773 | 90 | -1.20 | 88 | -1.93 | 287 | -1.99 | 291 | |
291 | South Bend Washington | 83 | -1.99 | 4 | 14 | .894 | 41 | -.672 | 87 | -1.02 | 84 | -2.04 | 293 | -1.96 | 287 | |
294 | Owen Valley | 84 | -2.07 | 8 | 20 | .935 | 63 | -.649 | 84 | -1.00 | 83 | -2.09 | 294 | -2.06 | 293 | |
295 | Twin Lakes | 85 | -2.08 | 7 | 24 | .931 | 61 | -.705 | 88 | -1.10 | 85 | -2.09 | 295 | -2.07 | 295 | |
307 | Indianapolis Shortridge | 86 | -2.39 | 10 | 12 | .964 | 84 | -.509 | 67 | -0.82 | 77 | -2.34 | 304 | -2.41 | 307 | |
314 | Evansville Central | 87 | -2.59 | 2 | 19 | .870 | 31 | -.774 | 91 | -1.33 | 92 | -2.49 | 311 | -2.66 | 321 | |
320 | Marion | 88 | -2.65 | 5 | 24 | .971 | 92 | -.799 | 92 | -1.39 | 93 | -2.69 | 322 | -2.63 | 318 | |
327 | Beech Grove | 89 | -2.87 | 2 | 25 | .919 | 57 | -.846 | 94 | -1.51 | 94 | -2.83 | 326 | -2.88 | 328 | |
332 | Purdue Poly Englewood | 90 | -2.97 | 9 | 19 | .955 | 80 | -.633 | 82 | -1.16 | 86 | -3.10 | 335 | -2.90 | 329 | |
RANK | TEAM | CLASS | RATING | WIN | LOSS | SoS | Rk | SoR | Rk | Z-SCR | Rk | INDY | Rk | CASTER | Rk | |
334 | Indianapolis Attucks | 91 | -3.03 | 11 | 13 | .965 | 87 | -.506 | 66 | -0.95 | 81 | -3.13 | 337 | -2.93 | 330 | |
336 | Griffith | 92 | -3.08 | 8 | 15 | .971 | 91 | -.623 | 81 | -1.17 | 87 | -3.09 | 334 | -3.08 | 335 | |
342 | River Forest | 93 | -3.34 | 9 | 16 | .975 | 94 | -.615 | 78 | -1.21 | 89 | -3.44 | 345 | -3.29 | 340 | |
347 | East Chicago Central | 94 | -3.50 | 9 | 15 | .972 | 93 | -.597 | 75 | -1.21 | 90 | -3.48 | 347 | -3.50 | 347 | |
364 | Evansville Bosse | 95 | -3.99 | 0 | 22 | .899 | 43 | -.898 | 96 | -1.85 | 95 | -4.01 | 364 | -3.95 | 364 | |
388 | Calumet | 96 | -5.67 | 0 | 13 | .911 | 54 | -.910 | 97 | -2.22 | 97 | -5.76 | 388 | -5.61 | 389 | |
390 | Gary West | 97 | -5.80 | 1 | 13 | .952 | 78 | -.880 | 95 | -2.20 | 96 | -5.85 | 390 | -5.77 | 390 | |
393 | Indianapolis Washington | 98 | -6.15 | 0 | 10 | .991 | 98 | -.991 | 98 | -2.47 | 98 | -6.26 | 393 | -6.08 | 392 |