NRL | Round 21

alphr.com.au

SYD
Roosters
VS
MEL
Storm
ALLIANZ STADIUM, SYDNEY • THURSDAY 24 JULY, 7:50 PM
🏁

AI Referee Insights

Adam Gee officiated this match (287 career games). The combined score of 64 points was 21 points above Adam Gee's career average of 43. Despite Adam Gee's 57% career home-team win rate, the away side Storm prevailed.

Based on referee career statistics • Post-match analysis

AI Game Review

Our model correctly predicted Storm to win at 65% probability. The margin model was sharp — predicting Storm by 6.6 vs the actual margin of 4 points. The game's 64 points came in 18 points higher than the predicted 46. Storm trailed 18–16 at half-time before staging a second-half comeback to win 30–34. 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

65%StormFavourite

Roosters

35%

Storm

65%

AI Match Overview

Storm are clear favourites here at 65%, with our model expecting a comfortable victory over Roosters. Roosters are stronger on paper across 4 of 7 key factors — including Forward Pack, Backline Quality and Referee Tendency — but Storm counter with ELO Difference and Halves Control which tips the scales. Storm carry a 160-point ELO rating advantage (1673 vs 1513). Recent form favours Storm with 4 wins from their last 5 compared to 3 for Roosters. The margin model predicts Storm by 6.6 points with a combined total of 46.

Generated from model features • Pre-kick-off analysis

Edge Analysis

2 ACTIVE EDGES

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

H2H Recommendation

Storm to Win @1.50

Winner ✓

Edge

+3.2%

Line / Spread

Storm +6.5 @1.91

Winner ✓

Edge

+3.2%

Total Points

Under 46.5 @1.91

Lost ✗

Edge

-0.6%

Form & History

TeamLast 5Avg Pts
Roosters
WWWLL
26.2
Storm
WWWWL
25.8

Avg Conceded

20.2

Roosters

16.4

Storm

Avg Margin

6.0

Roosters

9.4

Storm

Run Metres

1675

Roosters

1852

Storm

Line Breaks

4.2

Roosters

3.8

Storm

Referee IndicatorAI
Balanced record
Adam Gee287 games since 2013

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

SYD
66%25W 13L
MEL
68%28W 13L

Both sides have a similar record when Adam Gee officiates — Roosters 25W–13L (66%) and Storm 28W–13L (68%) across all their respective games. No significant bias detected. His games average 42.6 pts, sitting close to the league average. Home teams win 57% of his matches (vs ~52% league avg), which could give Roosters an additional edge at home.

Avg Total

42.6 pts

Home Win %

57%

Home Bias

Leans home

H2H History (Last 5)Storm lead 4-1
Sep 2025SYD 40 - 10 MEL
Oct 2024SYD 18 - 48 MEL
Jul 2024SYD 8 - 24 MEL
Apr 2024SYD 12 - 18 MEL
Oct 2023SYD 13 - 18 MEL
Prediction BreakdownPure Alpha Model

📊Team ELO Ratings

SYD
1513Overall1673
MEL
ELO difference: -160 in favour of Storm

🏈Positional Matchups

Player ELO aggregated by position group — higher = stronger unit

1092Forwards1059
Best: 1267SYD +33Best: 1222
1036Backs995
Best: 1101SYD +41Best: 1107
1158Halves1131
Best: 1158SYD +27Best: 1131
1062Hooker1108
MEL +46

📈Recent Form (Last 5)

SYD
Stat
MEL
3.0
Wins (Last 5)
4.0
26.2pts
Avg Score
25.8pts
20.2pts
Avg Conceded
16.4pts
6.0pts
Avg Margin
9.4pts
1675.2m
Run Metres
1852.0m
4.2
Line Breaks
3.8
383.8
Tackles
342.0
12.0
Errors
11.6

🔑Key Prediction Factors

What the model weighted most in this prediction

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

Model Confidence

65%

Storm predicted to win by 7 points

Predicted total: 46 · Line: -6.6

2/3 match predictions correct
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