AFL Insights
Brent Wallace

Umpire profile

Brent Wallace

No. 33 Heritage 435 Active Last officiated 11 Jul 2026

Lean, Victorian bias and upset history for 2022-2026.

Upset likelihood

25.8%

Eligible underdog win rate

Matches 93 · Baseline 28.6% · -2.8 pts

Victorian bias

+5.0 pts

Victorian side vs non-Victorian opponent

Matches 71 · Free-kick diff +0.7

Significant upsets

5

Only 60%+ favourites with 60+ upset scores count.

2022-2026

Club ladder

All teams ranked by lean

Lean is residual margin versus the closing line. Free-kick diff is context only.

# Club Matches Lean Free-kick diff
1
Geelong
21 +7.9 pts +0.9
2
Adelaide
21 +6.2 pts +1.4
3
Hawthorn
31 +5.7 pts -0.5
4
Western Bulldogs
23 +4.0 pts +1.7
5
St Kilda
19 +1.9 pts +1.5
6
GWS
23 +1.7 pts -3.0
7
Collingwood
18 +1.0 pts +1.6
8
Carlton
21 +0.4 pts -0.3
9
Melbourne
23 +0.1 pts -1.4
10
Richmond
11 -0.1 pts +0.0
11
Sydney
16 -1.5 pts +1.1
12
Brisbane Lions
27 -1.8 pts +0.6
13
North Melbourne
15 -1.9 pts +1.2
14
Gold Coast
19 -4.1 pts -2.2
15
Fremantle
17 -4.3 pts -0.1
16
Essendon
23 -4.5 pts +1.0
17
Port Adelaide
15 -6.5 pts -3.4
18
West Coast
19 -9.4 pts +0.1

Officiated shocks

Top significant upsets

Only 60+ upset scores with a 60%+ favourite are shown, so fewer than five is normal.

Hawthorn 16.9 105 def. Collingwood 11.7 73 89

Round 21 · 5 Aug 2023 · MCG

5.60 odds · 86% favourite · 32-pt win · 32.5-pt dog

Port Adelaide 7.12 54 def. by Geelong 20.18 138 81

Finals Week 1 · 5 Sep 2024 · Adelaide Oval

3.20 odds · 72% favourite · 84-pt win · 16.5-pt dog

North Melbourne 20.12 132 def. Gold Coast 14.13 97 80

Round 24 · 26 Aug 2023 · Blundstone Arena

3.50 odds · 76% favourite · 35-pt win · 20.5-pt dog

Hawthorn 15.8 98 def. Brisbane Lions 11.7 73 78

Round 13 · 10 Jun 2023 · MCG

4.00 odds · 79% favourite · 25-pt win · 24.5-pt dog

Gold Coast 20.10 130 def. Brisbane Lions 9.10 64 76

Round 20 · 26 Jul 2025 · Carrara

2.55 odds · 65% favourite · 66-pt win · 10.5-pt dog