Win Probability
Confidence: <strong>slight edge</strong> Bands are honesty-checked against held-out seasons, not a feeling about this game — see the <a href="/track-record">full track record</a>.
Key Insights
- ARI offense: +0.092 EPA/play over its last 8 games (7th in the league)
- Taysom Kyler Murray (ARI): +0.257 EPA/dropback in prior starts (ARI starting Taysom Kyler Murray in place of Colt McCoy)
- CHI defense: +0.078 EPA/play allowed over its last 8 games (28th in the league)
- ARI defense: -0.134 EPA/play allowed over its last 8 games (3rd in the league)
- ARI on 4 more days rest than CHI
Predicted Final Score
Typical error on unseen games: ±10.2 pts on margin, ±10.7 pts on total (held-out 2025). Treat this as a range, not a prediction to the point — see the <a href="/track-record">full track record</a>.
Injury Report — Week 13
ARI
CHI
Pulled fresh for 2021 week 13 specifically, not a cached snapshot — this changes every week as new reports come in.
Actual Result
Prediction missed by 8 pts on margin, 8 pts on total.
Scoring Summary
- Q1 11:02 TD ARI (11:02) (No Huddle, Shotgun) 1-K.Murray pass deep right to 10-D.Hopkins for 20 yards, TOUCHDOWN. ARI 6 – CHI 0
- Q1 01:47 TD ARI (1:47) (Shotgun) 1-K.Murray scrambles right end for 9 yards, TOUCHDOWN. ARI 13 – CHI 0
- Q2 08:53 TD CHI (8:53) (No Huddle, Shotgun) 32-D.Montgomery right guard for 1 yard, TOUCHDOWN. ARI 14 – CHI 6
- Q2 05:47 TD ARI (5:47) (No Huddle, Shotgun) 1-K.Murray pass short right to 6-J.Conner for 23 yards, TOUCHDOWN. ARI 20 – CHI 7
- Q3 09:56 FG ARI (9:56) 5-M.Prater 33 yard field goal is GOOD, Center-43-B.Brinkley, Holder-14-A.Lee. ARI 24 – CHI 7
- Q3 02:53 TD CHI (2:53) (Shotgun) 64-A.Bars reported in as eligible. 14-A.Dalton pass short left to 80-J.Graham for 1 yard, TOUCHDOWN. ARI 24 – CHI 13
- Q4 08:35 FG ARI (8:35) 5-M.Prater 25 yard field goal is GOOD, Center-43-B.Brinkley, Holder-14-A.Lee. ARI 27 – CHI 14
- Q4 06:28 TD ARI (6:28) (Shotgun) 1-K.Murray right end for 3 yards, TOUCHDOWN. ARI 33 – CHI 14
- Q4 02:51 TD CHI (2:51) (Shotgun) 14-A.Dalton pass short right to 17-J.Grant for 8 yards, TOUCHDOWN [9-I.Simmons]. ARI 33 – CHI 20
Fourth-Down Decisions
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Q1 ARI 4th & 2 at the 20Chose GO ✓ matched the modelp(convert) 58% p(FG) 91%
(11:02) (No Huddle, Shotgun) 1-K.Murray pass deep right to 10-D.Hopkins for 20 yards, TOUCHDOWN.
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Q2 CHI 4th & 8 at the 27Chose GO Model wanted KICK instead — cost +0.46 EPp(convert) 32% p(FG) 82%
(11:14) (Shotgun) 14-A.Dalton pass short middle to 17-J.Grant to ARI 16 for 11 yards (58-J.Hicks).
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Q2 CHI 4th & 17 at the 82Chose PUNT ✓ matched the modelp(convert) 27%
(3:36) 16-P.O'Donnell punts 53 yards to ARI 29, Center-48-P.Scales. 4-R.Moore to ARI 47 for 18 yards (45-J.Iyiegbuniwe). PENALTY on ARI-23-R.Alford, Offensive Holding, 10 yards, enforced at ARI 29.
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Q2 ARI 4th & 5 at the 76Chose PUNT ✓ matched the modelp(convert) 50%
(2:04) 14-A.Lee punts 41 yards to CHI 35, Center-43-B.Brinkley. 17-J.Grant pushed ob at CHI 43 for 8 yards (33-A.Hamilton).
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Q2 CHI 4th & 7 at the 54Chose PUNT ✓ matched the modelp(convert) 37%
(1:21) 16-P.O'Donnell punts 38 yards to ARI 16, Center-48-P.Scales, downed by CHI-26-D.Bush.
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Q3 ARI 4th & 7 at the 15Chose KICK ✓ matched the modelp(convert) 36% p(FG) 94%
(9:56) 5-M.Prater 33 yard field goal is GOOD, Center-43-B.Brinkley, Holder-14-A.Lee.
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Q3 CHI 4th & 1 at the 17Chose GO ✓ matched the modelp(convert) 65% p(FG) 93%
(5:41) (No Huddle, Shotgun) 32-D.Montgomery left guard to ARI 15 for 2 yards (58-J.Hicks, 97-J.Phillips).
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Q4 ARI 4th & 8 at the 60Chose PUNT ✓ matched the modelp(convert) 40%
(14:56) 14-A.Lee punts 58 yards to CHI 2, Center-43-B.Brinkley, downed by ARI-45-D.Gardeck.
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Q4 ARI 4th & 7 at the 7Chose KICK ✓ matched the modelp(convert) 36% p(FG) 98%
(8:35) 5-M.Prater 25 yard field goal is GOOD, Center-43-B.Brinkley, Holder-14-A.Lee.
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Q4 CHI 4th & 5 at the 70Chose GO Model wanted PUNT instead — cost +0.41 EPp(convert) 45%
(5:55) (Shotgun) 14-A.Dalton pass short middle to 85-C.Kmet to ARI 46 for 24 yards (58-J.Hicks; 34-J.Thompson).
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Q4 CHI 4th & 4 at the 8 late-gameChose GO ✓ matched the modelp(convert) 41% p(FG) 97%
(2:51) (Shotgun) 14-A.Dalton pass short right to 17-J.Grant for 8 yards, TOUCHDOWN [9-I.Simmons].
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Q4 ARI 4th & 12 at the 35 late-gameChose GO Model wanted KICK instead — cost +1.54 EPp(convert) 31% p(FG) 66%
(:25) (Shotgun) 79-J.Jones reported in as eligible. 26-E.Benjamin left guard to CHI 35 for no gain (95-K.Tonga; 98-B.Nichols).