NRL | Round 6

alphr.com.au

CRO
Sharks
VS
SYD
Roosters
OPTUS STADIUM, PERTH • SATURDAY 11 APR, 3:30 PM

Win Probability

AI Game Review

Our model correctly predicted Roosters to win at 55% probability. The predicted margin of 2.0 was reasonable against the actual 12-point result. Roosters trailed 22–12 at half-time before staging a second-half comeback to win 22–34. The model went 4/17 on this match. The 1-12 margin band call landed.

Model vs actual outcomes • Post-match analysis

🏁

AI Referee Insights

Todd Smith officiated this match (100 career games). The combined score of 56 points was 10 points above Todd Smith's career average of 46. Roosters bucked the trend, Sharks historically win 69% of games under Todd Smith, but couldn't convert that edge today.

Based on referee career statistics • Post-match analysis

Momentum Replay
Beta
80', Roosters firmly in control (99%)
SHA22
1%80'99%
34ROO
HT100%50%0%0'20'40'60'80'
Roosters momentumMomentum -17Sharks momentum →
Next Try (within 10 min)
AI Model
88% none
SHA 6%No try 88%ROO 6%
Biggest Swings

AI Win Probability

55%RoostersFavourite

Sharks

45%

Roosters

55%

AI Match Overview

Roosters hold the advantage at 55% win probability, though Sharks are far from out of this at 45%. Sharks are stronger on paper across 7 of 7 key factors, including ELO Difference, Forward Pack and Backline Quality, but Roosters counter with overall balance which tips the scales. Sharks carry a 38-point ELO rating advantage (1569 vs 1530). Recent form favours Sharks with 3 wins from their last 5 compared to 2 for Roosters. The margin model predicts Roosters by 2.0 points with a combined total of 48.

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

+3.2%

Line / Spread

Roosters -1.5 @1.91

Winner ✓

Edge

+0.0%

Margin Band

Roosters 1-12 @2.55

Winner ✓

Edge

+0.0%

Total Points

Under 50.5 @1.91

Lost ✗

Edge

+0.0%

Form & History

TeamLast 5Avg Pts
Sharks
R2026-R1W
R2026-R2L
R2026-R3L
R2026-R4W
R2026-R5W

older → newer

27.2
Roosters
R2025-R28L
R2026-R1L
R2026-R2W
R2026-R3L
R2026-R4W
18.2

Avg Conceded

23.6

Sharks

27.2

Roosters

Avg Margin

3.6

Sharks

-9.0

Roosters

Run Metres

1626

Sharks

1694

Roosters

Line Breaks

5.4

Sharks

4.6

Roosters

Referee Indicator

Favours Sharks

Todd Smith

100 career games · since 2012

AI Analysis

Win rate when Todd Smith refs each team (vs any opponent)

Sharks
9W – 4L
69%
Roosters
7W – 5L
58%

Sharks hold a 11-point edge: 9W–4L (69%) vs Roosters's 7W–5L (58%). Home teams win 55% of his matches (vs ~52% league avg).

Avg Total

45.9 pts

Home Win %

55%

Home Bias

Leans home

Penalty & Discipline

Pen / Game

10.7

Sin Bins / Gm

0.50

SB Away %

52%

Avg Penalties Per Game

vs Home Teams5.3
vs Away Teams5.4

Penalty Advantage Under This Ref

Positive = opponent penalised more than your team

Sharks
+0.5
Roosters
+0.0

Sharks get a +0.5 penalty advantage under Todd Smith vs Roosters's +0.0.

H2H History (Last 5)Sharks lead 3-2
Sep 2025CRO 20 - 10 SYD
Jul 2025CRO 31 - 18 SYD
May 2025CRO 16 - 42 SYD
May 2024CRO 38 - 30 SYD
Sep 2023CRO 12 - 13 SYD
Prediction BreakdownPure Alpha Model

ELO–Market Disagreement

Sharks hold the ELO advantage (1569 vs 1530), but the market favours Roosters (@1.85).

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

📊Team ELO Ratings

CRO
1569Overall1530
SYD
ELO difference: +38 in favour of Sharks

🏈Positional Matchups

Player ELO aggregated by position group, higher = stronger unit

1079Forwards1023
CRO +57
1070Backs1051
CRO +19
1042Halves1019
CRO +23
1029Hooker1035
Even

📈Recent Form (Last 5)

CRO
Stat
SYD
3.0
Wins (Last 5)
2.0
27.2pts
Avg Score
18.2pts
23.6pts
Avg Conceded
27.2pts
3.6pts
Avg Margin
-9.0pts
1625.8m
Run Metres
1693.6m
5.4
Line Breaks
4.6
349.0
Tackles
335.0
11.2
Errors
12.8

🔑Key Prediction Factors

What the model weighted most in this prediction

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

Model Confidence

55%

Roosters predicted to win by 2 points

Predicted total: 48 · Line: -2.0

3/4 match predictions correct1/13 scorer picks correct
Scorer Markets

Anytime Try Scorer

Model probability vs Sportsbet overlay, ranked by edge.

8 Plays
Braydon TrindallSharks
halfFair 2.102+ 14%
$3.80
+21.4% edge
Model
48%
Market
26%
Confidence
48%
Billy BurnsSharks
forwardFair 2.572+ 9%
$4.80
+18.1% edge
Model
39%
Market
21%
Confidence
39%
Toby RudolfSharks
forwardFair 4.752+ 2%
$12.00
+12.7% edge
Model
21%
Market
8%
Confidence
21%
Blayke BraileySharks
hookerFair 3.822+ 4%
$6.75
+11.4% edge
Model
26%
Market
15%
Confidence
26%
Teig WiltonSharks
forwardFair 3.152+ 6%
$3.90
+6.1% edge
Model
32%
Market
26%
Confidence
32%
Briton NikoraSharks
benchFair 3.562+ 4%
$4.40
+5.3% edge
Model
28%
Market
23%
Confidence
28%
Angus CrichtonRoosters
forwardFair 2.972+ 6%
$3.50
+5.1% edge
Model
34%
Market
29%
Confidence
34%
Nat ButcherRoosters
benchFair 6.672+ 1%
$9.25
+4.2% edge
Model
15%
Market
11%
Confidence
15%
Scorer Markets

First Try Scorer

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

5 Plays
Mark NawaqanitawaseRoosters
backFair 4.022+ 27%
$7.50
+11.5% edge
Model
25%
Market
13%
Confidence
25%
Daniel TupouRoosters
backFair 6.062+ 14%
$9.50
+6.0% edge
Model
17%
Market
11%
Confidence
17%
Braydon TrindallSharks
halfFair 9.082+ 14%
$19.00
+5.8% edge
Model
11%
Market
5%
Confidence
11%
Billy BurnsSharks
forwardFair 11.922+ 9%
$23.00
+4.0% edge
Model
8%
Market
4%
Confidence
8%
Briton NikoraSharks
benchFair 17.862+ 4%
$51.00
+3.6% edge
Model
6%
Market
2%
Confidence
6%