NRL | Round 19

alphr.com.au

SGI
Dragons
VS
SYD
Roosters
JUBILEE STADIUM, SYDNEY • SATURDAY 12 JULY, 5:30 PM
🏁

AI Referee Insights

Grant Atkins officiated this match (312 career games). The combined score of 55 points was 12 points above Grant Atkins's career average of 43. Roosters's victory aligns with Grant Atkins's historical trend — Roosters have a 61% win rate under this referee. Despite Grant Atkins's 55% career home-team win rate, the away side Roosters prevailed.

Based on referee career statistics • Post-match analysis

AI Game Review

Our model correctly predicted Roosters to win at 58% probability. The predicted margin of 2.5 was reasonable against the actual 7-point result. The model went 2/3 on this match. The 1-12 margin band call landed.

Model vs actual outcomes • Post-match analysis

Win Probability

AI Win Probability

58%RoostersFavourite

Dragons

42%

Roosters

58%

AI Match Overview

Roosters hold the advantage at 58% win probability, though Dragons are far from out of this at 42%. The model sees Roosters ahead on 5 of 7 key factors including ELO Difference, Forward Pack and Backline Quality. Roosters carry a 136-point ELO rating advantage (1530 vs 1395). Recent form favours Roosters with 3 wins from their last 5 compared to 2 for Dragons. The margin model predicts Roosters by 2.5 points with a combined total of 46.

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

Roosters to Win @1.50

Winner ✓

Edge

-7.5%

Line / Spread

Roosters +5.5 @1.91

Winner ✓

Edge

-7.5%

Total Points

Under 47.5 @1.91

Lost ✗

Edge

+4.2%

Form & History

TeamLast 5Avg Pts
Dragons
WWLLL
20.4
Roosters
WWWLL
29.6

Avg Conceded

28.0

Dragons

17.6

Roosters

Avg Margin

-7.6

Dragons

12.0

Roosters

Run Metres

1594

Dragons

1731

Roosters

Line Breaks

3.8

Dragons

5.0

Roosters

Referee IndicatorAI
Favours Roosters
Grant Atkins312 games since 2013

Each team's win rate when Grant Atkins refs their game (vs any opponent, all seasons)

SGI
42%15W 21L
SYD
61%33W 21L

When Grant Atkins officiates, Roosters have won 33 of 54 games (61%) vs any opponent — significantly stronger than Dragons's 15 from 36 (42%). That's a 19‑point gap across all seasons. His games average 42.9 pts, sitting close to the league average. Home teams win 55% of his matches (vs ~52% league avg), which could give Dragons an additional edge at home.

Avg Total

42.9 pts

Home Win %

55%

Home Bias

Leans home

H2H History (Last 5)Roosters lead 4-1
Apr 2025SGI 18 - 46 SYD
Jul 2024SGI 12 - 42 SYD
Apr 2024SGI 18 - 60 SYD
May 2023SGI 24 - 22 SYD
Apr 2023SGI 26 - 27 SYD
Prediction BreakdownPure Alpha Model

📊Team ELO Ratings

SGI
1395Overall1530
SYD
ELO difference: -136 in favour of Roosters

🏈Positional Matchups

Player ELO aggregated by position group — higher = stronger unit

1085Forwards1193
Best: 1269SYD +109Best: 1361
1049Backs1134
Best: 1134SYD +86Best: 1200
1100Halves1140
Best: 1100SYD +40Best: 1140
1085Hooker1219
SYD +134

📈Recent Form (Last 5)

SGI
Stat
SYD
2.0
Wins (Last 5)
3.0
20.4pts
Avg Score
29.6pts
28.0pts
Avg Conceded
17.6pts
-7.6pts
Avg Margin
12.0pts
1594.0m
Run Metres
1730.6m
3.8
Line Breaks
5.0
375.4
Tackles
382.0
10.6
Errors
12.4

🔑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%
7
Venue Advantage7.0%
Dragons

Model Confidence

58%

Roosters predicted to win by 2 points

Predicted total: 46 · Line: -2.5

2/3 match predictions correct
Coming Soon

Try Scorer Predictions

AI-powered try scorer predictions and player prop markets — built on our 6-model player stats engine.

First / Anytime / Last ScorerPlayer Props