NRL | Round 9

alphr.com.au

SYD
Roosters
VS
DOL
Dolphins
SUNCORP STADIUM, BRISBANE • FRIDAY 2 MAY, 8:05 PM
🏁

AI Referee Insights

Grant Atkins officiated this match (312 career games). The combined score of 62 points was 19 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.

Based on referee career statistics • Post-match analysis

AI Game Review

Our model correctly predicted Roosters to win at 53% probability. The predicted margin of 5.2 was reasonable against the actual 10-point result. The game's 62 points came in 17 points higher than the predicted 45. 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

53%RoostersFavourite

Roosters

53%

Dolphins

47%

AI Match Overview

This shapes up as one of the tightest matchups of the round. Our model gives Roosters a marginal 53% edge, making this essentially a coin-flip contest. Dolphins are stronger on paper across 4 of 7 key factors — including ELO Difference, Forward Pack and Backline Quality — but Roosters counter with Halves Control and Venue Advantage which tips the scales. Recent form favours Dolphins with 3 wins from their last 5 compared to 2 for Roosters. The margin model predicts Roosters by 5.2 points with a combined total of 45.

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 @1.85

Winner ✓

Edge

+2.6%

Line / Spread

Roosters -1.5 @1.91

Winner ✓

Edge

+2.6%

Total Points

Under 48.5 @1.91

Lost ✗

Edge

+10.2%

Form & History

TeamLast 5Avg Pts
Roosters
WWLLL
22.0
Dolphins
WWWLL
29.6

Avg Conceded

24.8

Roosters

20.8

Dolphins

Avg Margin

-2.8

Roosters

8.8

Dolphins

Run Metres

1659

Roosters

1728

Dolphins

Line Breaks

5.8

Roosters

4.4

Dolphins

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)

SYD
61%33W 21L
DOL
50%5W 5L

Roosters hold a 11‑point edge: 33W–21L (61%) vs Dolphins's 5W–5L (50%) across all games Grant Atkins has refereed for each side. His games average 42.9 pts, sitting close to the league average.

Avg Total

42.9 pts

Home Win %

55%

Home Bias

Leans home

H2H History (Last 4)Roosters lead 3-1
Aug 2025SYD 64 - 12 DOL
Aug 2024SYD 40 - 34 DOL
Aug 2023SYD 30 - 14 DOL
Mar 2023SYD 18 - 28 DOL
Prediction BreakdownPure Alpha Model

ELO–Market Disagreement

Dolphins hold the ELO advantage (1481 vs 1473), but the market favours Roosters (@1.85).

The model sides with the market — other factors override the ELO gap.

📊Team ELO Ratings

SYD
1473Overall1481
DOL
ELO difference: -8 in favour of Dolphins

🏈Positional Matchups

Player ELO aggregated by position group — higher = stronger unit

1037Forwards1095
Best: 1253DOL +58Best: 1261
1040Backs1048
Best: 1138EvenBest: 1158
1375Halves1015
Best: 1375SYD +359Best: 1015
977Hooker1187
DOL +210

📈Recent Form (Last 5)

SYD
Stat
DOL
2.0
Wins (Last 5)
3.0
22.0pts
Avg Score
29.6pts
24.8pts
Avg Conceded
20.8pts
-2.8pts
Avg Margin
8.8pts
1659.4m
Run Metres
1728.2m
5.8
Line Breaks
4.4
343.0
Tackles
356.6
14.2
Errors
9.8

🔑Key Prediction Factors

What the model weighted most in this prediction

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

Model Confidence

53%

Roosters predicted to win by 5 points

Predicted total: 45 · Line: +5.2

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