NRL | Round 4

alphr.com.au

SYD
Roosters
VS
GLD
Titans
ALLIANZ STADIUM, SYDNEY • FRIDAY 28 MAR, 6:00 PM
🏁

AI Referee Insights

Grant Atkins officiated this match (312 career games). The 42-point combined total was right in line with Grant Atkins's career average of 43. Titans bucked the trend — Roosters historically win 63% of games under Grant Atkins, but couldn't convert that edge today. Despite Grant Atkins's 55% career home-team win rate, the away side Titans prevailed.

Based on referee career statistics • Post-match analysis

AI Game Review

Titans defied the model's 61% prediction for Roosters — a notable upset. The margin model missed here — predicting 6.1 but the actual margin was 18 points. Total score prediction of 46 was close to the actual 42 — within 4 points. The model went 1/3 on this match. The under 50.5 total call was correct.

Model vs actual outcomes • Post-match analysis

Win Probability

AI Win Probability

61%RoostersFavourite

Roosters

61%

Titans

39%

AI Match Overview

Roosters hold the advantage at 61% win probability, though Titans are far from out of this at 39%. The model sees Roosters ahead on 6 of 7 key factors including ELO Difference, Forward Pack and Backline Quality. Roosters carry a 76-point ELO rating advantage (1503 vs 1427). Recent form favours Roosters with 2 wins from their last 5 compared to 1 for Titans. The margin model predicts Roosters by 6.1 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 @1.55

Lost ✗

Edge

-5.6%

Line / Spread

Roosters -4.5 @1.91

Lost ✗

Edge

-5.6%

Total Points

Under 50.5 @1.91

Winner ✓

Edge

+12.6%

Form & History

TeamLast 5Avg Pts
Roosters
WWLLL
23.2
Titans
WLLLL
19.6

Avg Conceded

32.0

Roosters

29.6

Titans

Avg Margin

-8.8

Roosters

-10.0

Titans

Run Metres

1528

Roosters

1642

Titans

Line Breaks

5.6

Roosters

3.8

Titans

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
63%34W 20L
GLD
30%9W 21L

When Grant Atkins officiates, Roosters have won 34 of 54 games (63%) vs any opponent — significantly stronger than Titans's 9 from 30 (30%). That's a 33‑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 Roosters an additional edge at home.

Avg Total

42.9 pts

Home Win %

55%

Home Bias

Leans home

H2H History (Last 5)Roosters lead 5-0
Sep 2024SYD 48 - 22 GLD
Aug 2023SYD 36 - 18 GLD
May 2022SYD 44 - 16 GLD
Sep 2021SYD 25 - 24 GLD
Jun 2021SYD 35 - 34 GLD
Prediction BreakdownPure Alpha Model

📊Team ELO Ratings

SYD
1503Overall1427
GLD
ELO difference: +76 in favour of Roosters

🏈Positional Matchups

Player ELO aggregated by position group — higher = stronger unit

1141Forwards1000
Best: 1314SYD +140Best: 1248
1022Backs904
Best: 1119SYD +118Best: 1004
1203Halves1093
Best: 1203SYD +110Best: 1093
1200Hooker858
SYD +342

📈Recent Form (Last 5)

SYD
Stat
GLD
2.0
Wins (Last 5)
1.0
23.2pts
Avg Score
19.6pts
32.0pts
Avg Conceded
29.6pts
-8.8pts
Avg Margin
-10.0pts
1527.8m
Run Metres
1642.0m
5.6
Line Breaks
3.8
356.2
Tackles
339.0
10.2
Errors
12.2

🔑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%
Roosters

Model Confidence

61%

Roosters predicted to win by 6 points

Predicted total: 46 · Line: +6.1

1/3 match predictions correct
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