Percentile among the 138 FBS teams on each measure this season, offence and defence, both teams. Raw values, plays behind them and ranks are in the tables below.
What actually happens around a number like this
Each bar is how often a college game lands on that margin, from 7,877 FBS games 2015–2025, centred on our card line. The spread misses by 12.3 points on average (37% within a touchdown). IU wins about 97% of the time at a number like ours.
PUR
Games
4
Plays per game
71.5
Drives per game
10.8
SP+
-6.4 (94th, offence 57th, defence 120th)
Returning production
48% (pass 97%, rush 61%, receiving 22%)
IU
Games
4
Plays per game
61.8
Drives per game
10.5
SP+
26.9 (4th, offence 5th, defence 7th)
Returning production
17% (pass 2%, rush 25%, receiving 24%)
What each side chooses to do
Offence
PUR
IU
pass rate, all downs
56%20th
38%128th
pass rate, standard downs
48%19th
31%126th
pass rate, 1st down
49%27th
30%126th
no-huddle share
44%88th
3%135th
pass rate, passing downs
76%14th
55%114th
pass rate, red zone
51%17th
17%133rd
seconds per play (own drives)
29.463rd
33.06th
choices, from CFBD play-by-play; a choice repeats within a season, a result mostly does not Rank 1 = highest rate / fastest among FBS.
PUR offence
PUR offence
value
plays
FBS rank
points added per play
0.237
286
45 of 138
success rate
0.465
286
48 of 138
explosiveness (points added on successful plays)
1.198
286
86 of 138
rush: points added per play
0.083
286
84 of 138
rush: success rate
0.429
286
88 of 138
rush: explosiveness
0.883
286
88 of 138
pass: points added per play
0.399
286
30 of 138
pass: success rate
0.506
286
28 of 138
pass: explosiveness
1.408
286
109 of 138
standard downs: success rate
0.507
286
54 of 138
passing downs: success rate
0.354
286
44 of 138
line yards per rush (the O-line)
3.027
286
85 of 138
rushes stopped at or behind the line
0.159
286
57 of 138
short-yardage conversion rate
0.789
286
46 of 138
points per trip inside the 40
3.630
286
86 of 138
havoc allowed (TFL, forced fumbles, breakups per play)
0.133
286
57 of 138
havoc allowed by the front seven
0.101
286
99 of 138
havoc allowed by the secondary
0.031
286
16 of 138
average starting field position (yards from own goal)
73.800
286
18 of 138
IU offence
IU offence
value
plays
FBS rank
points added per play
0.421
247
5 of 138
success rate
0.510
247
18 of 138
explosiveness (points added on successful plays)
1.382
247
20 of 138
rush: points added per play
0.256
247
22 of 138
rush: success rate
0.474
247
43 of 138
rush: explosiveness
1.022
247
46 of 138
pass: points added per play
0.686
247
2 of 138
pass: success rate
0.573
247
6 of 138
pass: explosiveness
1.877
247
10 of 138
standard downs: success rate
0.558
247
19 of 138
passing downs: success rate
0.379
247
26 of 138
line yards per rush (the O-line)
3.507
247
19 of 138
rushes stopped at or behind the line
0.118
247
13 of 138
short-yardage conversion rate
0.720
247
85 of 138
points per trip inside the 40
5.241
247
7 of 138
havoc allowed (TFL, forced fumbles, breakups per play)
0.109
247
22 of 138
havoc allowed by the front seven
0.081
247
54 of 138
havoc allowed by the secondary
0.028
247
11 of 138
average starting field position (yards from own goal)
66.900
247
121 of 138
PUR defence
PUR defence
value
plays
FBS rank
points added per play
0.351
258
138 of 138
success rate
0.500
258
136 of 138
explosiveness (points added on successful plays)
1.366
258
114 of 138
rush: points added per play
0.300
258
135 of 138
rush: success rate
0.518
258
136 of 138
rush: explosiveness
1.054
258
107 of 138
pass: points added per play
0.412
258
126 of 138
pass: success rate
0.469
258
119 of 138
pass: explosiveness
1.827
258
125 of 138
standard downs: success rate
0.536
258
132 of 138
passing downs: success rate
0.413
258
135 of 138
line yards per rush (the O-line)
3.319
258
124 of 138
rushes stopped (by this defence) at or behind the line
0.151
258
26 of 138
short-yardage conversion rate
0.762
258
93 of 138
points per trip inside the 40
5.200
258
136 of 138
havoc created (TFL, forced fumbles, breakups per play)
0.140
258
38 of 138
havoc created by the front seven
0.081
258
38 of 138
havoc created by the secondary
0.058
258
61 of 138
opponent average starting field position
73.300
258
98 of 138
IU defence
IU defence
value
plays
FBS rank
points added per play
-0.107
237
17 of 138
success rate
0.300
237
3 of 138
explosiveness (points added on successful plays)
1.421
237
129 of 138
rush: points added per play
-0.134
237
21 of 138
rush: success rate
0.264
237
3 of 138
rush: explosiveness
1.164
237
128 of 138
pass: points added per play
-0.035
237
21 of 138
pass: success rate
0.356
237
31 of 138
pass: explosiveness
1.598
237
89 of 138
standard downs: success rate
0.329
237
2 of 138
passing downs: success rate
0.250
237
41 of 138
line yards per rush (the O-line)
2.262
237
12 of 138
rushes stopped (by this defence) at or behind the line
0.236
237
112 of 138
short-yardage conversion rate
0.500
237
7 of 138
points per trip inside the 40
2.857
237
38 of 138
havoc created (TFL, forced fumbles, breakups per play)
0.198
237
115 of 138
havoc created by the front seven
0.169
237
132 of 138
havoc created by the secondary
0.030
237
3 of 138
opponent average starting field position
74.800
237
118 of 138
points added per play: CFBD predicted points added (their EPA); positive helps the offence · success rate: share of plays that gain 50% of needed yards on 1st, 70% on 2nd, 100% on 3rd/4th · explosiveness: average points added on the plays that succeeded - big-play size · havoc: tackles for loss, forced fumbles, interceptions and breakups as a share of plays · rank: 1 = best among FBS teams in the direction that helps that side · fei: bcftoys.com FEI: opponent-adjusted possession efficiency, offence/defence/special teams, with FBS rank - theirs · fplus: bcftoys.com F+: FEI and SP+ combined, in standard deviations above average - theirs