NRL | Round 8

alphr.com.au

WST
Wests Tigers
VS
CRO
Sharks
LEICHHARDT OVAL, SYDNEY • SUNDAY 27 APR, 4:05 PM

Win Probability

AI Game Review

Wests Tigers defied the model's 62% prediction for Sharks, a notable upset. The predicted margin of 3.3 was reasonable against the actual 2-point result. Total score prediction of 40 was close to the actual 38, within 2 points. The model went 1/3 on this match. The over 25.5 total call was correct.

Model vs actual outcomes • Post-match analysis

🏁

AI Referee Insights

Grant Atkins officiated this match (318 career games). The combined score of 38 points was 5 points below Grant Atkins's career average of 43. Wests Tigers bucked the trend, Sharks historically win 53% of games under Grant Atkins, but couldn't convert that edge today. Grant Atkins averaged 14.4 penalties per game heading in, a whistle-heavy referee profile.

Based on referee career statistics • Post-match analysis

Momentum Replay
Beta
89', Wests Tigers firmly in control (99%)
WES20
99%89'1%
18SHA
HT100%50%0%0'20'40'60'80'
Sharks momentumMomentum +3Wests Tigers momentum →
Next Try (within 10 min)
AI Model
88% none
WES 7%No try 88%SHA 5%
Biggest Swings

AI Win Probability

62%SharksFavourite

Wests Tigers

38%

Sharks

62%

AI Match Overview

Sharks hold the advantage at 62% win probability, though Wests Tigers are far from out of this at 38%. The model sees Sharks ahead on 4 of 7 key factors including ELO Difference, Backline Quality and Halves Control. Sharks carry a 206-point ELO rating advantage (1569 vs 1363). Recent form favours Sharks with 3 wins from their last 5 compared to 2 for Wests Tigers. The margin model predicts Sharks by 3.3 points with a combined total of 40.

Generated from model features • Pre-kick-off analysis

Edge Analysis

1 ACTIVE EDGE

Each market is predicted by an independent model, H2H, margin, and totals may occasionally disagree.

H2H Recommendation

Sharks to Win @1.45

Lost ✗

Edge

-5.1%

Line / Spread

Sharks +6.5 @1.91

Lost ✗

Edge

-5.1%

Total Points

Over 25.5 @1.91

Winner ✓

Edge

+35.2%

Form & History

TeamLast 5Avg Pts
Wests Tigers
W
W
L
L
L
24.0
Sharks
W
W
W
L
L
22.2

Avg Conceded

26.4

Wests Tigers

17.6

Sharks

Avg Margin

-2.4

Wests Tigers

4.6

Sharks

Run Metres

1626

Wests Tigers

1766

Sharks

Line Breaks

4.0

Wests Tigers

4.0

Sharks

Referee Indicator

Favours Sharks

Grant Atkins

318 career games · since 2013

AI Analysis

Win rate when Grant Atkins refs each team (vs any opponent)

Wests Tigers
12W – 17L
41%
Sharks
17W – 15L
53%

Sharks hold a 12-point edge: 17W–15L (53%) vs Wests Tigers's 12W–17L (41%).

Avg Total

43.2 pts

Home Win %

54%

Home Bias

Leans home

Penalty & Discipline

Pen / Game

14.4

Sin Bins / Gm

0.29

SB Away %

56%

Avg Penalties Per Game

vs Home Teams6.8
vs Away Teams7.6

Penalty Advantage Under This Ref

Positive = opponent penalised more than your team

Wests Tigers
-0.8
Sharks
-1.1

Grant Atkins averages 14.4 penalties per game, above the league norm. Expect frequent stoppages. Penalises away teams more, 6.8 against home vs 7.6 against away. Wests Tigers get a +-0.8 penalty advantage under Grant Atkins vs Sharks's -1.1.

H2H History (Last 5)Sharks lead 4-1
May 2026WST 10 - 52 CRO
Jul 2024WST 6 - 58 CRO
Mar 2024WST 32 - 6 CRO
Jul 2023WST 12 - 36 CRO
Aug 2022WST 12 - 36 CRO
Prediction BreakdownPure Alpha Model

📊Team ELO Ratings

WST
1363Overall1569
CRO
ELO difference: -206 in favour of Sharks

🏈Positional Matchups

Player ELO aggregated by position group, higher = stronger unit

1002Forwards1003
Best: 1291EvenBest: 1252
970Backs1052
Best: 1052CRO +82Best: 1141
1117Halves1207
Best: 1117CRO +91Best: 1207
1104Hooker1111
Even

📈Recent Form (Last 5)

WST
Stat
CRO
2.0
Wins (Last 5)
3.0
24.0pts
Avg Score
22.2pts
26.4pts
Avg Conceded
17.6pts
-2.4pts
Avg Margin
4.6pts
1626.0m
Run Metres
1766.2m
4.0
Line Breaks
4.0
309.6
Tackles
339.0
10.0
Errors
11.2

🔑Key Prediction Factors

What the model weighted most in this prediction

1
ELO Difference14.0%
Sharks
2
Forward Pack12.0%
Tigers
3
Backline Quality10.0%
Sharks
4
Halves Control9.0%
Sharks
5
Recent Win Rate9.0%
Sharks
6
Referee Tendency7.0%
7
Venue Advantage7.0%

Model Confidence

62%

Sharks predicted to win by 3 points

Predicted total: 40 · Line: -3.3

1/3 match predictions correct
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