Iowa State
- SP+
- +14.3 (#19)
- FPI
- +15.3 (#9)
- SRS
- +10.6 (#20)
- Resume
- #50
Next game
Advanced stats
CollegeFootballData's play-by-play measures of how efficient and explosive a team was, placed against every other FBS team. How it works →
Profile vs. FBS, 2021
Farther out is better on every spoke. Dashed ring: the FBS median.
- EPA per playExpected points added on an average snap: how much each play moved the scoring odds.
- Success rateShare of snaps that stayed on schedule: half the yards needed on 1st down, 70% on 2nd, all of them on 3rd or 4th.
- ExplosivenessAverage EPA on the successful snaps: how big the good plays were.
- Rushing EPAEPA per designed run.
- Passing EPAEPA per pass play.
- Standard downsSuccess rate on downs where either a run or a pass makes sense, like 1st and 10 or 3rd and 2.
- Passing downsSuccess rate on downs that all but force a pass, like 2nd and 8 or longer, or 3rd and 5 or longer.
- Line yardsRushing yards per carry credited to the offensive line, weighting the first few yards most.
- Stuff rateShare of runs stopped at or behind the line of scrimmage.
- HavocShare of snaps with a tackle for loss, sack, forced fumble, interception or pass breakup.
Percentiles among the 130 FBS teams this season, where higher is better for the offense and the defense alike (a defense's numbers are what it allowed). The line in each bar is the FBS median. Garbage time excluded. Source: CollegeFootballData.
Expected points
YardLine's expected-points model values every snap by what a drive from that spot is worth on average, so a drive can be judged against where it started. How it works →
Drives vs. expectation, 2021
Points over expected per drive, from where each drive started.
Per drive against an average FBS opponent, neutral field.
Points over expected per trip inside the opponent's 40.
Average expected points where drives started.
Every snap has an expected-points value: what a drive from that spot, down and distance is worth on average. A drive over expected beat its starting spot; defense counts what Iowa State allowed, so lower is better. The adjusted number fits every team against the opponents it actually played, so it leans toward average early in a season. Ranks are among FBS teams.
Game by game
Bars above the line: better than expected for Iowa State.
Players
YardLine's player model credits every play's value to the players involved, so each one's season can be measured in wins above a typical backup. How it works →
Players, 2021
Quarterback is the most valuable starting slot by a wide margin: the gap between a top-decile and a median FBS quarterback is about twice the gap at any other position.
- Brock PurdyQB385 plays · +0.252 pts/play · 43rd of 219 QBs1.82WAR1.14 to 2.42
- Breece HallRB196 plays · +0.210 pts/play · 25th of 387 RBs0.77WAR0.59 to 0.96
- Xavier HutchinsonWR65 plays · +0.155 pts/play · 77th of 474 WRs0.19WAR0.12 to 0.27
- Andrew MevisPK16 plays · +0.293 pts/play · 41st of 128 kickers0.09WAR0.05 to 0.13
- Jaylin NoelWR36 plays · +0.126 pts/play · 273rd of 474 WRs0.08WAR0.05 to 0.12
- Charlie KolarTE61 plays · +0.065 pts/play · 3rd of 234 TEs0.07WAR−0.03 to 0.17
- Tarique MiltonWR10 plays · +0.162 pts/play · 421st of 474 WRs0.03WAR0.02 to 0.04
- Sean Shaw Jr.WR8 plays · +0.149 pts/play · 426th of 474 WRs0.02WAR0.02 to 0.03
Every player (11)
- Jirehl BrockRB6 plays · +0.128 pts/play · 342nd of 387 RBs0.01WAR0.01 to 0.02
- Connor AssalleyPK1 plays · +0.150 pts/play · 128th of 128 kickers0.00WAR0.00 to 0.01
- Chase AllenTE25 plays · −0.027 pts/play · 222nd of 234 TEs−0.01WAR−0.06 to 0.03
By position group, against FBS
Linemen and defenders are valued as units, in points per game against the median FBS unit, because play-by-play doesn't say who was on the field. Players are valued against a replacement-level backup, so the two aren't added together.
Wins above replacement credits each play's expected points to the players involved, adjusted for the opponent, and compares Iowa State's players with a typical backup; 53 points make a win. Only snaps while the game was in doubt count, so a starter on a team that blows opponents out plays fewer of them: read value per play beside WAR. The line under each player (or the range on a phone) is the 90% interval. Ranks are among FBS teams and players. How this works
Transfer portal, 2021
2 players transferred in and 7 out. WAR is each one's 2020 season, before the move. Every team's portal
In 2021, the arrivals have added 0.09 WAR at Iowa State and the departures 0.16 wherever they went.
- Johnnie LangRB · 3★to Arkansas State0.010.16
The other 6
- Arnold AzunnaS · 3★to Hawai'i--
- Greg RossCB · 3★to James Madison--
- Joshua BaileyDL · 3★to Charlotte--
- Latrell BankstonDT · 3★to Houston--
- Skylar Loving-BlackTE · 3★to San José State--
- Devin LarsenQBto Garden City C.C. --
Only quarterbacks, skill players and specialists have a WAR of their own, so they make up these totals; linemen and defenders count in the moves but add none. 2020 is the player's season at his old school, 2021 his season after the move. A dash means no FBS snaps that season. Rosters tie CFBD's portal entries to players, which works for about 19 in 20 skill-position moves.
Talent and roster
How much talent the roster had, by recruiting ratings, and how much of it showed up on the field, against every other FBS team. How it works →
What it had and what it did, 2021
- Roster talent: 614, 55th of 130 in FBSRoster talent247Sports' talent composite: the recruiting ratings of every player on the roster, transfers included.
- Recruiting: 186, 52nd of 130 in FBSRecruitingAverage 247Sports class score over this season's class and the three before it.
- Returning production: 94%, 15th of 128 in FBSReturning productionShare of last season's production (expected points added) by players still on the roster.
- SP+ rating: +14.3, 19th of 130 in FBSSP+ ratingThe result: Bill Connelly's opponent-adjusted rating, points per game better than an average FBS team.
Ranks and bars among the 130 FBS teams with a talent rating this season, best first; the line in each bar is the FBS median.
Talent conversion
Iowa State's SP+ of +14.3 is 12.3 points above the +2.0 its roster talent predicts, 17th of 130 in FBS.
The same comparison on each side of the ball, positive is better for both.
Conversion by season
Fourth downs
YardLine's fourth-down model values going for it, kicking and punting on every real fourth down, so each call can be checked against the numbers. How it works →
Fourth-down calls vs. the numbers, 2021
Calls that matched the option with the best modeled win probability.
Summed over every call that differed, in points of win probability.
Went for it when going beat every other option by a point or more.
Each real fourth down is valued three ways (go for it, kick, punt) from the score, clock and field position before the snap, using league-wide odds rather than Iowa State's own. A call that differs gives up the gap to the best option; gaps under one point are close calls, and the 7 clear-cut ones account for 0.15 of the 0.20 expected wins. The model sees the situation, not the injury report, so a call it disagrees with can still be right. Ranks are among FBS teams; 1st gave up the least.
Costliest calls against the numbers
- at WVUQ4 0:00 4th & 6 at WVU 30, down 7Went for it; the numbers favored a field goal−4.6 pts
- vs OKSTQ4 3:18 4th & 2 at ISU 43, up 3Punted; the numbers favored going for it−2.9 pts
- vs UNIQ4 6:18 4th & 4 at UNI 4, up 3Kicked a field goal; the numbers favored going for it−1.7 pts
- at KSUQ4 9:09 4th & 1 at KSU 23, up 14Kicked a field goal; the numbers favored going for it−1.6 pts
- at KSUQ2 0:00 4th & 1 at KSU 24, up 10Kicked a field goal; the numbers favored going for it−1.6 pts
- vs UNIQ3 7:06 4th & 1 at ISU 44, up 3Punted; the numbers favored going for it−1.4 pts
- at TTUQ3 7:01 4th & 2 at ISU 19, down 17Punted; the numbers favored going for it−1.4 pts
- at WVUQ2 2:18 4th & 4 at WVU 48, down 3Punted; the numbers favored going for it (close call)−1.0 pts
Every call this season (97)
- Q1 11:304th & 16 at ISU 45, tied · PuntedAgreed
- Q1 7:334th & 5 at ISU 39, tied · PuntedAgreed
- Q1 1:064th & 4 at UNI 18, down 7 · Kicked a field goalClose call
- Q2 0:004th & 5 at UNI 23, tied · Kicked a field goalAgreed
- Q3 12:264th & 4 at ISU 34, up 3 · PuntedAgreed
- Q3 7:064th & 1 at ISU 44, up 3 · Punted−1.4 pts
- Q4 14:064th & 12 at UNI 39, up 3 · PuntedAgreed
- Q4 6:184th & 4 at UNI 4, up 3 · Kicked a field goal−1.7 pts
- Q4 1:024th & 1 at ISU 49, up 6 · PuntedClose call
- Q1 12:314th & 9 at ISU 9, tied · PuntedAgreed
- Q1 8:294th & 7 at ISU 20, tied · PuntedAgreed
- Q1 0:394th & 4 at IOWA 5, tied · Kicked a field goalClose call
- Q2 5:354th & 7 at ISU 44, down 4 · PuntedAgreed
- Q3 12:074th & 8 at ISU 48, down 4 · PuntedAgreed
- Q3 8:124th & 22 at ISU 13, down 4 · PuntedAgreed
- Q4 11:254th & 6 at ISU 29, down 17 · PuntedAgreed
- Q4 8:194th & 8 at ISU 26, down 17 · PuntedAgreed
- Q4 0:504th & 5 at ISU 37, down 10 · Went for itClose call
- Q1 15:004th & 2 at BAY 26, tied · Went for itAgreed
- Q1 2:154th & 6 at ISU 40, tied · PuntedAgreed
- Q2 14:534th & 1 at BAY 32, down 7 · Went for itAgreed
- Q2 10:104th & 6 at BAY 23, down 7 · Kicked a field goalAgreed
- Q2 1:384th & 11 at BAY 30, down 11 · Kicked a field goalAgreed
- Q3 7:134th & 6 at BAY 22, down 8 · Kicked a field goalAgreed
- Q3 5:184th & 2 at ISU 33, down 12 · PuntedAgreed
- Q4 7:404th & 9 at ISU 16, down 5 · PuntedAgreed
- Q4 5:364th & 1 at BAY 34, down 8 · Went for itAgreed
- Q1 10:564th & 3 at ISU 27, up 7 · PuntedClose call
- Q1 7:364th & 6 at KSU 27, up 7 · Kicked a field goalAgreed
- Q1 1:354th & 1 at ISU 30, up 3 · PuntedClose call
- Q2 0:004th & 1 at KSU 24, up 10 · Kicked a field goal−1.6 pts
- Q4 9:094th & 1 at KSU 23, up 14 · Kicked a field goal−1.6 pts
- Q4 1:234th & 14 at KSU 23, up 10 · Kicked a field goalAgreed
- Q1 12:154th & 1 at OKST 32, tied · Went for itAgreed
- Q1 9:094th & 5 at ISU 12, tied · PuntedAgreed
- Q1 3:304th & 12 at ISU 20, down 7 · PuntedAgreed
- Q2 4:394th & 1 at OKST 1, down 7 · Went for itAgreed
- Q2 1:454th & 13 at ISU 37, tied · PuntedAgreed
- Q2 0:344th & 3 at ISU 32, down 7 · PuntedAgreed
- Q3 2:414th & 8 at OKST 12, tied · Kicked a field goalAgreed
- Q4 10:414th & 2 at OKST 42, up 3 · Went for itAgreed
- Q4 3:184th & 2 at ISU 43, up 3 · Punted−2.9 pts
- Q1 5:314th & 1 at ISU 34, tied · PuntedClose call
- Q2 13:284th & 20 at ISU 30, tied · PuntedAgreed
- Q2 6:334th & 5 at ISU 45, down 3 · PuntedAgreed
- Q2 5:034th & 1 at ISU 44, down 3 · Went for itAgreed
- Q2 2:184th & 4 at WVU 48, down 3 · PuntedClose call
- Q2 0:184th & 4 at WVU 17, down 3 · Kicked a field goalAgreed
- Q3 13:264th & 12 at ISU 32, tied · PuntedAgreed
- Q4 11:424th & 16 at ISU 41, tied · PuntedAgreed
- Q4 1:344th & 1 at WVU 42, down 7 · Went for itAgreed
- Q4 0:004th & 6 at WVU 30, down 7 · Went for it−4.6 pts
- Q1 12:274th & 7 at TEX 7, tied · Kicked a field goalAgreed
- Q1 7:094th & 5 at TEX 37, up 3 · Went for itAgreed
- Q2 11:074th & 17 at ISU 40, up 3 · PuntedAgreed
- Q2 4:094th & 7 at ISU 28, down 4 · PuntedAgreed
- Q2 0:494th & 7 at ISU 33, down 4 · PuntedAgreed
- Q3 8:404th & 4 at TEX 48, up 3 · PuntedClose call
- Q4 11:474th & 5 at TEX 12, up 17 · Kicked a field goalAgreed
- Q4 4:294th & 8 at TEX 34, up 20 · Kicked a field goalClose call
- Q4 0:354th & 12 at ISU 14, up 23 · PuntedAgreed
- Q1 4:044th & 4 at OU 48, tied · PuntedClose call
- Q1 0:444th & 18 at ISU 30, tied · PuntedAgreed
- Q2 11:564th & 1 at ISU 19, tied · Went for itAgreed
- Q2 8:354th & 11 at ISU 29, tied · PuntedAgreed
- Q3 12:164th & 14 at ISU 44, down 6 · PuntedAgreed
- Q3 7:084th & 1 at OU 36, down 6 · Went for itAgreed
- Q3 0:004th & 2 at ISU 35, down 6 · Went for itAgreed
- Q4 7:264th & 4 at ISU 25, down 7 · PuntedClose call
- Q4 0:504th & 6 at ISU 49, down 7 · Went for itAgreed
- Q4 0:154th & 10 at OU 21, down 7 · Went for itAgreed
- Q1 5:014th & 3 at ISU 32, down 3 · PuntedAgreed
- Q2 11:254th & 5 at CLEM 5, down 3 · Kicked a field goalAgreed
- Q2 7:334th & 10 at CLEM 25, tied · Kicked a field goalAgreed
- Q2 2:004th & 5 at CLEM 49, down 3 · PuntedClose call
- Q3 12:334th & 15 at ISU 31, down 3 · PuntedAgreed
- Q3 2:334th & 6 at ISU 29, down 17 · PuntedAgreed
- Q3 1:234th & 10 at CLEM 28, down 17 · Kicked a field goalAgreed
- Q4 4:154th & 19 at ISU 11, down 7 · PuntedAgreed
- Q4 0:334th & 2 at ISU 36, down 7 · Went for itAgreed
After touchdowns: kick or go for two?
Tries that matched the option with the better modeled win probability.
Summed over every try that differed, in points of win probability.
Went for two when it beat kicking by a point or more.
Costliest tries against the numbers
Win probability
YardLine's model estimates each team's chance of winning before kickoff and again after every play, from the score, clock, down, distance and field position. How it works →
Record vs. expectation, 2021
121st of 130 FBS teams at beating the model's pregame expectations
Expected wins adds up Iowa State's chance of winning each game as the model saw it at kickoff - a 70% favorite counts 0.7.
What moved it, 2021
Every game starts at Iowa State's pregame chance; everything after that is the field. The model's own breakdown of each game's final play splits the on-field part by what drove it, and the parts add up exactly. How it works →
- Scoreboard−1.22
- Clock−0.03
- Timeouts+0.03
- Other−0.01
- Less the pregame edge, counted before kickoff−1.19
Game by game
- UNIW 16-10 vs UNI97% → 90%Before kickoff +47 · On the field −6: Scoreboard +9, Timeouts +1
- IOWAL 17-27 vs IOWA61% → 2%Before kickoff +11 · On the field −59: Scoreboard −57, Clock −3
- UNLVW 48-3 at UNLV98% → 100%Before kickoff +48 · On the field +2: Scoreboard +5
- BAYL 29-31 at BAY70% → 5%Before kickoff +20 · On the field −65: Scoreboard −40, Timeouts −3
- KUW 59-7 vs KU98% → 100%Before kickoff +48 · On the field +2: Scoreboard +3
- KSUW 33-20 at KSU69% → 97%Before kickoff +19 · On the field +28: Scoreboard +41, Possession & field position −2
- OKSTW 24-21 vs OKST72% → 96%Before kickoff +22 · On the field +24: Scoreboard +28, Timeouts +1
- WVUL 31-38 at WVU70% → 10%Before kickoff +20 · On the field −60: Scoreboard −33, Timeouts −1
- TEXW 30-7 vs TEX69% → 100%Before kickoff +19 · On the field +30: Scoreboard +30, Timeouts +2
- TTUL 38-41 at TTU82% → 4%Before kickoff +32 · On the field −78: Scoreboard −42, Timeouts −1
- OUL 21-28 at OU42% → 9%Before kickoff −8 · On the field −33: Scoreboard −35, Timeouts +3
- TCUW 48-14 vs TCU85% → 100%Before kickoff +35 · On the field +15: Scoreboard +17
- CLEML 13-20 vs CLEM48% → 4%Before kickoff −2 · On the field −44: Scoreboard −48, Clock −3
Points of win probability, from Iowa State's side.
Closest call
ISU 38-31 OU (2017) - Iowa State dropped to a 3.3% win probability before pulling it out.
Season arc, 2021
Every completed game this season, in order - each tile is Iowa State's own win-probability curve.
Biggest swings of 2021
The largest single-play change in Iowa State's win probability this season - one snap that moved the outcome the most.
Stolen wins
Iowa State's own lowest win probability at any point in a game it went on to win, across the whole archive - the deepest holes it climbed out of.
Let it slip
Iowa State's own highest win probability at any point in a game it went on to lose, across the whole archive - the biggest leads it didn't hold.
Stock & rivalries
Stock
Iowa State's leaguewide Elo rating, tracked like a stock price - built from game results and margins, not the model's own win-probability predictions.
Series & rivalries
Iowa State's most-played opponents across the whole archive - open one for the full head-to-head history.