Win Probability
Confidence: <strong>coin flip</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: -0.113 EPA/play over its last 8 games (22nd in the league)
- SF offense: -0.159 EPA/play over its last 8 games (28th in the league)
- ARI on 7 more days rest than SF
- SF defense: +0.066 EPA/play allowed over its last 8 games (29th in the league)
- QB edge to SF: C.J. Beathard (SF) -0.240 vs Drew Stanton (ARI) -0.417 EPA/dropback (ARI starting Drew Stanton in place of Carson Palmer)
- ARI defense: -0.076 EPA/play allowed over its last 8 games (11th in the league)
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 9
ARI
SF
Pulled fresh for 2017 week 9 specifically, not a cached snapshot — this changes every week as new reports come in.
Actual Result
Prediction missed by 11 pts on margin, 9 pts on total.
Scoring Summary
- Q1 10:23 TD ARI (10:23) (Shotgun) 5-D.Stanton pass short right to 13-Ja.Brown for 3 yards, TOUCHDOWN [99-D.Buckner]. 0-YAC ARI 6 – SF 0
- Q2 15:00 FG SF (15:00) 9-R.Gould 42 yard field goal is GOOD, Center-86-K.Nelson, Holder-5-B.Pinion. ARI 7 – SF 3
- Q2 11:08 TD ARI (11:08) (Shotgun) 5-D.Stanton pass short right to 84-J.Gresham for 11 yards, TOUCHDOWN. Caught in endzone. 0-YAC ARI 13 – SF 3
- Q3 09:48 TD SF (9:48) (Shotgun) 3-C.Beathard left guard for 1 yard, TOUCHDOWN. ARI 14 – SF 9
- Q4 13:35 FG ARI (13:35) 4-P.Dawson 25 yard field goal is GOOD, Center-49-J.Drescher, Holder-2-A.Lee. ARI 17 – SF 10
- Q4 05:37 FG ARI (5:37) 4-P.Dawson 32 yard field goal is GOOD, Center-49-J.Drescher, Holder-2-A.Lee. ARI 20 – SF 10
Fourth-Down Decisions
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Q1 ARI 4th & 2 at the 20Chose KICK Model wanted GO instead — cost +0.90 EPp(convert) 53% p(FG) 90%
(13:06) 4-P.Dawson 38 yard field goal is No Good, Hit Right Upright, Center-49-J.Drescher, Holder-2-A.Lee. P.Dawson's kick hit right upright.
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Q1 SF 4th & 9 at the 77Chose PUNT ✓ matched the modelp(convert) 33%
(9:27) 5-B.Pinion punts 42 yards to ARI 35, Center-86-K.Nelson. 21-P.Peterson to ARI 37 for 2 yards (38-A.Colbert).
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Q1 ARI 4th & 13 at the 66Chose PUNT ✓ matched the modelp(convert) 29%
(7:50) 2-A.Lee punts 43 yards to SF 23, Center-49-J.Drescher, fair catch by 81-T.Taylor.
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Q1 SF 4th & 13 at the 51Chose PUNT ✓ matched the modelp(convert) 25% p(FG) 23%
(5:37) 5-B.Pinion punts 39 yards to ARI 12, Center-86-K.Nelson, fair catch by 33-K.Williams.
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Q1 ARI 4th & 1 at the 79Chose PUNT Model wanted GO instead — cost +1.21 EPp(convert) 71%
(3:44) 2-A.Lee punts 58 yards to SF 21, Center-49-J.Drescher. 81-T.Taylor to SF 24 for 3 yards (36-B.Baker).
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Q1 SF 4th & 16 at the 82Chose PUNT ✓ matched the modelp(convert) 26%
(2:17) 5-B.Pinion punts 39 yards to ARI 43, Center-86-K.Nelson, downed by SF-97-D.Watson.
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Q1 ARI 4th & 10 at the 57Chose PUNT ✓ matched the modelp(convert) 32%
(1:47) 2-A.Lee punts 41 yards to SF 16, Center-49-J.Drescher. 81-T.Taylor to SF 18 for 2 yards (36-B.Baker).
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Q2 SF 4th & 7 at the 24Chose KICK ✓ matched the modelp(convert) 31% p(FG) 85%
(15:00) 9-R.Gould 42 yard field goal is GOOD, Center-86-K.Nelson, Holder-5-B.Pinion.
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Q2 SF 4th & 6 at the 67Chose PUNT ✓ matched the modelp(convert) 38%
(10:24) 5-B.Pinion punts 54 yards to ARI 13, Center-86-K.Nelson. 33-K.Williams to ARI 15 for 2 yards (31-R.Mostert).
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Q2 ARI 4th & 2 at the 77Chose PUNT Model wanted GO instead — cost +0.75 EPp(convert) 61%
(8:53) 2-A.Lee punts 45 yards to SF 32, Center-49-J.Drescher. 81-T.Taylor to SF 37 for 5 yards (80-I.Momah).
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Q2 SF 4th & 10 at the 63Chose PUNT ✓ matched the modelp(convert) 30%
(7:57) 5-B.Pinion punts 48 yards to ARI 15, Center-86-K.Nelson. 33-K.Williams to ARI 23 for 8 yards (38-A.Colbert, 86-K.Nelson).
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Q2 SF 4th & 10 at the 38Chose PUNT Model wanted KICK instead — cost +0.77 EPp(convert) 28% p(FG) 55%
(:33) 5-B.Pinion punts 32 yards to ARI 6, Center-86-K.Nelson, downed by SF-31-R.Mostert.
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Q3 ARI 4th & 13 at the 54Chose PUNT ✓ matched the modelp(convert) 28%
(6:36) 2-A.Lee punts 39 yards to SF 15, Center-49-J.Drescher, fair catch by 17-V.Bolden.
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Q3 SF 4th & 5 at the 80Chose PUNT ✓ matched the modelp(convert) 43%
(5:03) 5-B.Pinion punts 52 yards to ARI 28, Center-86-K.Nelson, fair catch by 33-K.Williams.
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Q4 ARI 4th & 2 at the 7Chose KICK Model wanted GO instead — cost +1.22 EPp(convert) 52% p(FG) 97%
(13:35) 4-P.Dawson 25 yard field goal is GOOD, Center-49-J.Drescher, Holder-2-A.Lee.
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Q4 SF 4th & 18 at the 90Chose PUNT ✓ matched the modelp(convert) 25%
(12:46) 5-B.Pinion punts 46 yards to ARI 44, Center-86-K.Nelson. 33-K.Williams to ARI 48 for 4 yards (86-K.Nelson).
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Q4 ARI 4th & 3 at the 13Chose KICK Model wanted GO instead — cost +0.30 EPp(convert) 46% p(FG) 95%
(5:37) 4-P.Dawson 32 yard field goal is GOOD, Center-49-J.Drescher, Holder-2-A.Lee.
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Q4 SF 4th & 3 at the 49 late-gameChose GO ✓ matched the modelp(convert) 48% p(FG) 27%
(3:47) (Shotgun) 3-C.Beathard pass incomplete short right to 28-C.Hyde (56-K.Dansby).
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Q4 ARI 4th & 5 at the 57 late-gameChose PUNT ✓ matched the modelp(convert) 43%
(1:56) 2-A.Lee punts 44 yards to SF 13, Center-49-J.Drescher. 17-V.Bolden to SF 13 for no gain (28-J.Bethel).
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Q4 SF 4th & 14 at the 91 late-gameChose GO Model wanted PUNT instead — cost +1.22 EPp(convert) 29%
(1:07) (No Huddle, Shotgun) 3-C.Beathard pass short right to 19-A.Robinson to SF 20 for 11 yards (20-D.Bucannon). Caught at SF 15. 5-YAC