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🧑⚖️ Referee Profile
M Oliver
683 matches officiated across 108 teams
* Note: Detailed card statistics for matches before 2005 may be incomplete.
683
Matches
3.0
🟨 / Game
108
Teams
Our comprehensive analysis of M Oliver's officiating record examines 108 teams across 683 matches, revealing fascinating patterns in how this referee impacts different teams' performances. The data shows a 100.0 percentage point spread between the most favorable and most-impacted teams under M Oliver, with some notable negative patterns worth examining. M Oliver averages 3.0 yellow cards and 0.13 red cards per match. Sunderland appears most affected with a -45.0% bias score over 1 matches. This analysis helps football fans, bettors, and fantasy managers understand historical referee-team dynamics and make more informed decisions.
All Teams Ranked by Bias
#
Team
Games
Win Rate
Bias Score
🟨/G
Verdict
1
#1QPR
9
0.0%
-45.0%
1.2
🚨 Strong Bias
Games
9
Win Rate
0.0%
Bias Score
-45.0%
2
#2Hereford
5
0.0%
-45.0%
0.2
🚨 Strong Bias
Games
5
Win Rate
0.0%
Bias Score
-45.0%
3
#3Crewe
5
0.0%
-45.0%
1.0
🚨 Strong Bias
Games
5
Win Rate
0.0%
Bias Score
-45.0%
4
#4Barnsley
9
11.1%
-33.9%
0.7
🚨 Strong Bias
Games
9
Win Rate
11.1%
Bias Score
-33.9%
5
#5Mansfield
7
14.3%
-30.7%
0.6
🚨 Strong Bias
Games
7
Win Rate
14.3%
Bias Score
-30.7%
6
#6Tranmere
6
16.7%
-28.3%
1.8
🚨 Strong Bias
Games
6
Win Rate
16.7%
Bias Score
-28.3%
7
#7Plymouth
6
16.7%
-28.3%
1.2
🚨 Strong Bias
Games
6
Win Rate
16.7%
Bias Score
-28.3%
8
#8Rochdale
6
16.7%
-28.3%
0.7
🚨 Strong Bias
Games
6
Win Rate
16.7%
Bias Score
-28.3%
9
#9Millwall
5
20.0%
-25.0%
2.0
🚨 Strong Bias
Games
5
Win Rate
20.0%
Bias Score
-25.0%
10
#10Coventry
10
20.0%
-25.0%
1.9
🚨 Strong Bias
Games
10
Win Rate
20.0%
Bias Score
-25.0%
11
#11Wrexham
5
20.0%
-25.0%
2.2
🚨 Strong Bias
Games
5
Win Rate
20.0%
Bias Score
-25.0%
12
#12Scunthorpe
14
21.4%
-23.6%
1.6
🚨 Strong Bias
Games
14
Win Rate
21.4%
Bias Score
-23.6%
13
#13Northampton
9
22.2%
-22.8%
1.4
🚨 Strong Bias
Games
9
Win Rate
22.2%
Bias Score
-22.8%
14
#14Norwich
22
22.7%
-22.3%
1.7
🚨 Strong Bias
Games
22
Win Rate
22.7%
Bias Score
-22.3%
15
#15West Ham
43
23.3%
-21.7%
1.5
🚨 Strong Bias
Games
43
Win Rate
23.3%
Bias Score
-21.7%
16
#16Watford
21
23.8%
-21.2%
1.7
🚨 Strong Bias
Games
21
Win Rate
23.8%
Bias Score
-21.2%
17
#17Wolves
32
25.0%
-20.0%
1.8
🚨 Strong Bias
Games
32
Win Rate
25.0%
Bias Score
-20.0%
18
#18Bury
12
25.0%
-20.0%
0.8
🚨 Strong Bias
Games
12
Win Rate
25.0%
Bias Score
-20.0%
19
#19Oldham
8
25.0%
-20.0%
2.0
🚨 Strong Bias
Games
8
Win Rate
25.0%
Bias Score
-20.0%
20
#20Bristol City
11
27.3%
-17.7%
1.8
⚠️ Potential Bias
Games
11
Win Rate
27.3%
Bias Score
-17.7%
21
#21Macclesfield
11
27.3%
-17.7%
1.2
⚠️ Potential Bias
Games
11
Win Rate
27.3%
Bias Score
-17.7%
22
#22Burnley
35
28.6%
-16.4%
1.2
⚠️ Potential Bias
Games
35
Win Rate
28.6%
Bias Score
-16.4%
23
#23Sheffield United
14
28.6%
-16.4%
1.6
⚠️ Potential Bias
Games
14
Win Rate
28.6%
Bias Score
-16.4%
24
#24Wigan
7
28.6%
-16.4%
2.1
⚠️ Potential Bias
Games
7
Win Rate
28.6%
Bias Score
-16.4%
25
#25Birmingham
7
28.6%
-16.4%
1.4
⚠️ Potential Bias
Games
7
Win Rate
28.6%
Bias Score
-16.4%
26
#26West Brom
30
30.0%
-15.0%
1.7
⚠️ Potential Bias
Games
30
Win Rate
30.0%
Bias Score
-15.0%
27
#27Stoke
25
32.0%
-13.0%
2.0
⚠️ Potential Bias
Games
25
Win Rate
32.0%
Bias Score
-13.0%
28
#28Aston Villa
36
33.3%
-11.7%
1.9
⚠️ Potential Bias
Games
36
Win Rate
33.3%
Bias Score
-11.7%
29
#29Bournemouth
18
33.3%
-11.7%
1.8
⚠️ Potential Bias
Games
18
Win Rate
33.3%
Bias Score
-11.7%
30
#30Brighton
18
33.3%
-11.7%
1.2
⚠️ Potential Bias
Games
18
Win Rate
33.3%
Bias Score
-11.7%
31
#31Cardiff
12
33.3%
-11.7%
1.3
⚠️ Potential Bias
Games
12
Win Rate
33.3%
Bias Score
-11.7%
32
#32Derby
6
33.3%
-11.7%
1.3
⚠️ Potential Bias
Games
6
Win Rate
33.3%
Bias Score
-11.7%
33
#33Blackpool
15
33.3%
-11.7%
1.4
⚠️ Potential Bias
Games
15
Win Rate
33.3%
Bias Score
-11.7%
34
#34Peterboro
6
33.3%
-11.7%
1.0
⚠️ Potential Bias
Games
6
Win Rate
33.3%
Bias Score
-11.7%
35
#35Aldershot
6
33.3%
-11.7%
1.2
⚠️ Potential Bias
Games
6
Win Rate
33.3%
Bias Score
-11.7%
36
#36Milton Keynes Dons
6
33.3%
-11.7%
1.8
⚠️ Potential Bias
Games
6
Win Rate
33.3%
Bias Score
-11.7%
37
#37Stockport
9
33.3%
-11.7%
0.9
⚠️ Potential Bias
Games
9
Win Rate
33.3%
Bias Score
-11.7%
38
#38Swindon
6
33.3%
-11.7%
1.0
⚠️ Potential Bias
Games
6
Win Rate
33.3%
Bias Score
-11.7%
39
#39Wycombe
6
33.3%
-11.7%
2.2
⚠️ Potential Bias
Games
6
Win Rate
33.3%
Bias Score
-11.7%
40
#40Notts County
9
33.3%
-11.7%
2.4
⚠️ Potential Bias
Games
9
Win Rate
33.3%
Bias Score
-11.7%
41
#41Carlisle
9
33.3%
-11.7%
0.7
⚠️ Potential Bias
Games
9
Win Rate
33.3%
Bias Score
-11.7%
42
#42Lincoln
9
33.3%
-11.7%
0.8
⚠️ Potential Bias
Games
9
Win Rate
33.3%
Bias Score
-11.7%
43
#43Everton
56
33.9%
-11.1%
1.7
⚠️ Potential Bias
Games
56
Win Rate
33.9%
Bias Score
-11.1%
44
#44Leeds
20
35.0%
-10.0%
1.1
⚠️ Potential Bias
Games
20
Win Rate
35.0%
Bias Score
-10.0%
45
#45Morecambe
11
36.4%
-8.6%
0.9
📊 Neutral
Games
11
Win Rate
36.4%
Bias Score
-8.6%
46
#46Fulham
19
36.8%
-8.2%
1.7
📊 Neutral
Games
19
Win Rate
36.8%
Bias Score
-8.2%
47
#47Crystal Palace
38
36.8%
-8.2%
1.3
📊 Neutral
Games
38
Win Rate
36.8%
Bias Score
-8.2%
48
#48Swansea
27
37.0%
-8.0%
1.3
📊 Neutral
Games
27
Win Rate
37.0%
Bias Score
-8.0%
49
#49Sheffield Weds
8
37.5%
-7.5%
2.0
📊 Neutral
Games
8
Win Rate
37.5%
Bias Score
-7.5%
50
#50Nott'm Forest
21
38.1%
-6.9%
1.6
📊 Neutral
Games
21
Win Rate
38.1%
Bias Score
-6.9%
51
#51Man United
44
38.6%
-6.4%
1.9
📊 Neutral
Games
44
Win Rate
38.6%
Bias Score
-6.4%
52
#52Brentford
18
38.9%
-6.1%
1.4
📊 Neutral
Games
18
Win Rate
38.9%
Bias Score
-6.1%
53
#53Luton
5
40.0%
-5.0%
1.4
📊 Neutral
Games
5
Win Rate
40.0%
Bias Score
-5.0%
54
#54Rotherham
10
40.0%
-5.0%
0.7
📊 Neutral
Games
10
Win Rate
40.0%
Bias Score
-5.0%
55
#55Bristol Rvs
5
40.0%
-5.0%
1.0
📊 Neutral
Games
5
Win Rate
40.0%
Bias Score
-5.0%
56
#56Burton
5
40.0%
-5.0%
1.2
📊 Neutral
Games
5
Win Rate
40.0%
Bias Score
-5.0%
57
#57Chester
5
40.0%
-5.0%
0.8
📊 Neutral
Games
5
Win Rate
40.0%
Bias Score
-5.0%
58
#58Torquay
5
40.0%
-5.0%
1.8
📊 Neutral
Games
5
Win Rate
40.0%
Bias Score
-5.0%
59
#59Leyton Orient
5
40.0%
-5.0%
1.4
📊 Neutral
Games
5
Win Rate
40.0%
Bias Score
-5.0%
60
#60Southampton
28
42.9%
-2.1%
1.6
📊 Neutral
Games
28
Win Rate
42.9%
Bias Score
-2.1%
61
#61Walsall
7
42.9%
-2.1%
1.1
📊 Neutral
Games
7
Win Rate
42.9%
Bias Score
-2.1%
62
#62Accrington
7
42.9%
-2.1%
1.4
📊 Neutral
Games
7
Win Rate
42.9%
Bias Score
-2.1%
63
#63Huddersfield
16
43.8%
-1.3%
1.1
📊 Neutral
Games
16
Win Rate
43.8%
Bias Score
-1.3%
64
#64Chesterfield
9
44.4%
-0.6%
1.8
📊 Neutral
Games
9
Win Rate
44.4%
Bias Score
-0.6%
65
#65Arsenal
56
44.6%
-0.4%
1.8
📊 Neutral
Games
56
Win Rate
44.6%
Bias Score
-0.4%
66
#66Chelsea
49
44.9%
-0.1%
1.6
📊 Neutral
Games
49
Win Rate
44.9%
Bias Score
-0.1%
67
#67Liverpool
59
45.8%
+0.8%
1.5
📊 Neutral
Games
59
Win Rate
45.8%
Bias Score
+0.8%
68
#68Tottenham
48
47.9%
+2.9%
1.8
📊 Neutral
Games
48
Win Rate
47.9%
Bias Score
+2.9%
69
#69Leicester
45
48.9%
+3.9%
1.3
📊 Neutral
Games
45
Win Rate
48.9%
Bias Score
+3.9%
70
#70Ipswich
6
50.0%
+5.0%
1.2
📊 Neutral
Games
6
Win Rate
50.0%
Bias Score
+5.0%
71
#71Reading
10
50.0%
+5.0%
1.9
📊 Neutral
Games
10
Win Rate
50.0%
Bias Score
+5.0%
72
#72Port Vale
6
50.0%
+5.0%
0.8
📊 Neutral
Games
6
Win Rate
50.0%
Bias Score
+5.0%
73
#73Yeovil
6
50.0%
+5.0%
1.3
📊 Neutral
Games
6
Win Rate
50.0%
Bias Score
+5.0%
74
#74Bradford
8
50.0%
+5.0%
1.1
📊 Neutral
Games
8
Win Rate
50.0%
Bias Score
+5.0%
75
#75York
6
50.0%
+5.0%
1.3
📊 Neutral
Games
6
Win Rate
50.0%
Bias Score
+5.0%
76
#76Hull
9
55.6%
+10.6%
1.2
✅ Favorable
Games
9
Win Rate
55.6%
Bias Score
+10.6%
77
#77Doncaster
8
62.5%
+17.5%
0.8
✅ Favorable
Games
8
Win Rate
62.5%
Bias Score
+17.5%
78
#78Grimsby
6
66.7%
+21.7%
0.5
✅ Favorable
Games
6
Win Rate
66.7%
Bias Score
+21.7%
79
#79Preston
10
70.0%
+25.0%
1.3
✅ Favorable
Games
10
Win Rate
70.0%
Bias Score
+25.0%
80
#80Man City
52
71.2%
+26.2%
1.4
✅ Favorable
Games
52
Win Rate
71.2%
Bias Score
+26.2%
81
#81Darlington
7
71.4%
+26.4%
0.9
✅ Favorable
Games
7
Win Rate
71.4%
Bias Score
+26.4%
Note: Showing 81 teams with 5+ games. Bias Score compares each team's win rate under this referee vs. baseline (45%). Click any team for detailed match-by-match analysis.