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NRL | Round 8

alphr.com.au

SGI
Dragons
VS
SYD
Roosters
ALLIANZ STADIUM, SYDNEY • SATURDAY 25 APR, 4:00 PM AEST

Win Probability

AI Game Review

Our model correctly predicted Roosters to win at 66% probability. The margin model missed here, predicting 6.9 but the actual margin was 46 points. The game's 78 points came in 32 points higher than the predicted 46. Roosters led 4–34 at the break and pulled away in the second half to win by 46. The model went 8/17 on this match.

Model vs actual outcomes • Post-match analysis

🏁

AI Referee Insights

Grant Atkins officiated this match (314 career games). The combined score of 78 points was 35 points above Grant Atkins's career average of 43. Roosters's victory aligns with Grant Atkins's historical trend, Roosters have a 62% win rate under this referee. Grant Atkins averaged 12.9 penalties per game heading in, a whistle-heavy referee profile. 67% of his career sin bins go against away teams, a statistically significant away-team bias.

Based on referee career statistics • Post-match analysis

Momentum Replay
Beta
80', Roosters firmly in control (99%)
DRA16
1%80'99%
62ROO
HT100%50%0%0'20'40'60'80'
Roosters momentumMomentum +2Dragons momentum →
Biggest Swings

AI Win Probability

66%RoostersFavourite

Dragons

34%

Roosters

66%

AI Match Overview

Roosters are clear favourites here at 66%, with our model expecting a comfortable victory over Dragons. The model sees Roosters ahead on 5 of 7 key factors including ELO Difference, Forward Pack and Backline Quality. Roosters carry a 343-point ELO rating advantage (1583 vs 1240). Recent form favours Roosters with 4 wins from their last 5 compared to 0 for Dragons. The margin model predicts Roosters by 6.9 points with a combined total of 46.

Generated from model features • Pre-kick-off analysis

Edge Analysis

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

H2H Recommendation

Roosters to Win @1.18

Winner ✓

Edge

-13.7%

Line / Spread

Dragons +16.5 @1.91

Lost ✗

Edge

+0.0%

Margin Band

Roosters 1-12 @2.55

Lost ✗

Edge

+0.0%

Total Points

Under 52.5 @1.91

Lost ✗

Edge

+0.0%

Form & History

TeamLast 5Avg Pts
Dragons
R2026-R3L
R2026-R4L
R2026-R5L
R2026-R6L
R2026-R7L

older → newer

12.8
Roosters
R2026-R2W
R2026-R3L
R2026-R4W
R2026-R6W
R2026-R7W
27.0

Avg Conceded

28.4

Dragons

24.0

Roosters

Avg Margin

-15.6

Dragons

3.0

Roosters

Run Metres

1695

Dragons

1835

Roosters

Line Breaks

3.6

Dragons

4.8

Roosters

Referee Indicator

Favours Roosters

Grant Atkins

314 career games · since 2012

AI Analysis

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

Dragons
15W – 22L
41%
Roosters
34W – 21L
62%

When Grant Atkins officiates, Roosters have won 34 of 55 games (62%), significantly stronger than Dragons's 15 from 37 (41%).

Avg Total

43.0 pts

Home Win %

55%

Home Bias

Leans home

Penalty & Discipline

Pen / Game

12.9

Sin Bins / Gm

0.10

SB Away %

67%

Avg Penalties Per Game

vs Home Teams6.5
vs Away Teams6.4

Penalty Advantage Under This Ref

Positive = opponent penalised more than your team

Dragons
+1.0
Roosters
-4.5

Grant Atkins averages 12.9 penalties per game, above the league norm. Expect frequent stoppages. Dragons get a +1.0 penalty advantage under Grant Atkins vs Roosters's -4.5.

H2H History (Last 5)Roosters lead 4-1
Jul 2025SGI 24 - 31 SYD
Apr 2025SGI 18 - 46 SYD
Jul 2024SGI 12 - 42 SYD
Apr 2024SGI 18 - 60 SYD
May 2023SGI 24 - 22 SYD
Prediction BreakdownPure Alpha Model

📊Team ELO Ratings

SGI
1240Overall1583
SYD
ELO difference: -343 in favour of Roosters

🏈Positional Matchups

Player ELO aggregated by position group, higher = stronger unit

740Forwards1047
SYD +307
724Backs1094
SYD +370
733Halves1053
SYD +320
773Hooker1079
SYD +306

📈Recent Form (Last 5)

SGI
Stat
SYD
0.0
Wins (Last 5)
4.0
12.8pts
Avg Score
27.0pts
28.4pts
Avg Conceded
24.0pts
-15.6pts
Avg Margin
3.0pts
1695.4m
Run Metres
1834.6m
3.6
Line Breaks
4.8
379.4
Tackles
320.4
10.8
Errors
13.4

🔑Key Prediction Factors

What the model weighted most in this prediction

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

Model Confidence

66%

Roosters predicted to win by 7 points

Predicted total: 46 · Line: -6.9

1/4 match predictions correct7/13 scorer picks correct
Scorer Markets

Anytime Try Scorer

Model probability vs Sportsbet overlay, ranked by edge.

8 Plays
Robert ToiaRoosters
backFair 1.562+ 27%
$2.30
+20.6% edge
Model
64%
Market
43%
Confidence
64%
Daniel TupouRoosters
backFair 1.352+ 39%
$1.53
+8.8% edge
Model
74%
Market
65%
Confidence
74%
Tyrell SloanDragons
backFair 2.112+ 14%
$2.55
+8.2% edge
Model
47%
Market
39%
Confidence
47%
Mark NawaqanitawaseRoosters
backFair 1.262+ 46%
$1.41
+8.1% edge
Model
79%
Market
71%
Confidence
79%
Setu TuDragons
backFair 2.492+ 9%
$2.40
-1.5% edge
Model
40%
Market
42%
Confidence
40%
Hugo SavalaRoosters
backFair 2.292+ 11%
$2.15
-2.9% edge
Model
44%
Market
47%
Confidence
44%
Moses SuliDragons
backFair 4.942+ 2%
$4.00
-4.7% edge
Model
20%
Market
25%
Confidence
20%
James TedescoRoosters
backFair 1.892+ 17%
$1.67
-7.1% edge
Model
53%
Market
60%
Confidence
53%
Scorer Markets

First Try Scorer

Team-normalised first-try share using the current lineups and opposition defence profile.

5 Plays
Tyrell SloanDragons
backFair 4.562+ 14%
$14.00
+14.8% edge
Model
22%
Market
7%
Confidence
22%
Setu TuDragons
backFair 5.702+ 9%
$13.00
+9.8% edge
Model
18%
Market
8%
Confidence
18%
Damien CookDragons
hookerFair 8.832+ 4%
$21.00
+6.6% edge
Model
11%
Market
5%
Confidence
11%
Mark NawaqanitawaseRoosters
backFair 5.132+ 46%
$7.00
+5.2% edge
Model
20%
Market
14%
Confidence
20%
Robert ToiaRoosters
backFair 7.832+ 27%
$13.00
+5.1% edge
Model
13%
Market
8%
Confidence
13%