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| Rank | Margin | Date | Team | Score | Opponent | Score | Venue |
|---|---|---|---|---|---|---|---|
| 1 | 1 | Mon 07-Aug-1911 | Western Australia | 9.13 (67) | New South Wales | 8.18 (66) | Adelaide Oval |
| 1 | 1 | Wed 17-Aug-1927 | Western Australia | 12.16 (88) | Tasmania | 12.15 (87) | Melbourne Cricket Ground |
| 1 | 1 | Sat 14-Jul-1934 | Western Australia | 15.7 (97) | South Australia | 14.12 (96) | Perth Oval |
| 1 | 1 | Sat 09-Jun-1984 | Western Australia | 14.14 (98) | South Australia | 14.13 (97) | Football Park, Adelaide |
| 1 | 1 | Thu 11-Jun-2009 | Western Australia | 12.10 (82) | South Australia | 12.9 (81) | Leederville Oval |
| 6 | 2 | Tue 01-Sep-1908 | Western Australia | 6.9 (45) | South Australia | 5.13 (43) | Melbourne Cricket Ground |
| 6 | 2 | Tue 19-Aug-1952 | Western Australia | 13.11 (89) | South Australia | 13.9 (87) | Subiaco Oval |
| 8 | 3 | Sat 24-Jul-1926 | Western Australia | 9.5 (59) | Victoria | 7.14 (56) | Perth Oval |
| 8 | 3 | Tue 09-Jul-1929 | Western Australia | 5.12 (42) | Victoria | 5.9 (39) | Perth Oval |
| 8 | 3 | Tue 12-Jul-1983 | Western Australia | 16.22 (118) | Victoria | 16.19 (115) | Subiaco Oval |
| 8 | 3 | Tue 08-Jul-1986 | Western Australia | 21.11 (137) | Victoria | 20.14 (134) | Subiaco Oval |
| 12 | 4 | Sat 20-Jul-1935 | Western Australia | 16.5 (101) | South Australia | 14.13 (97) | Adelaide Oval |
| 12 | 4 | Wed 06-Aug-1947 | Western Australia | 16.10 (106) | Victoria | 15.12 (102) | North Hobart Oval |
| 12 | 4 | Sat 18-Jul-1970 | Western Australia | 12.17 (89) | South Australia | 13.7 (85) | Subiaco Oval |
| 12 | 4 | Tue 17-Jul-1984 | Western Australia | 21.16 (142) | Victoria | 21.12 (138) | Subiaco Oval |
| 16 | 5 | Wed 10-Aug-1921 | Western Australia | 6.16 (52) | Victoria | 6.11 (47) | Subiaco Oval |
| 16 | 5 | Sat 10-Aug-1929 | Western Australia | 15.11 (101) | South Australia | 14.12 (96) | Perth Oval |
| 16 | 5 | Sat 18-Jul-1964 | Western Australia | 8.8 (56) | South Australia | 6.15 (51) | Subiaco Oval |
| 19 | 6 | Sun 23-Aug-1908 | Western Australia | 8.11 (59) | South Australia | 8.5 (53) | Melbourne Cricket Ground |
| 19 | 6 | Sat 18-Jun-2011 | Western Australia | 16.17 (113) | Queensland | 16.11 (107) | Rushton Park |
| 21 | 7 | Thu 07-Aug-1930 | Western Australia | 8.9 (57) | New South Wales | 7.8 (50) | Adelaide Oval |
| 21 | 7 | Thu 27-Jul-1950 | Western Australia | 11.12 (78) | Tasmania | 11.5 (71) | Brisbane Exhibition Ground |
| 21 | 7 | Mon 16-May-1977 | Western Australia | 15.18 (108) | South Australia | 15.11 (101) | Football Park, Adelaide |
| 24 | 8 | Tue 27-Jul-1926 | Western Australia | 11.10 (76) | Victoria | 10.8 (68) | Perth Oval |
| 25 | 9 | Sat 20-Aug-1904 | Western Australia | 10.7 (67) | South Australia | 8.10 (58) | Jubille Oval, Adelaide |
| 25 | 9 | Sun 23-Jul-1961 | Western Australia | 15.14 (104) | Victoria | 14.11 (95) | Brisbane Exhibition Ground |
| 25 | 9 | Sat 12-Jun-1965 | Western Australia | 12.17 (89) | VFA | 12.8 (80) | Subiaco Oval |
| 25 | 9 | Sat 03-Jul-1965 | Western Australia | 10.14 (74) | Victoria | 8.17 (65) | Subiaco Oval |
| 25 | 9 | Thu 16-Jun-1966 | Western Australia | 17.13 (115) | Tasmania | 16.10 (106) | North Hobart Oval |
| 30 | 10 | Sat 13-Aug-1921 | Western Australia | 12.3 (75) | South Australia | 9.11 (65) | Perth Oval |
| 30 | 10 | Sat 12-Aug-1933 | Western Australia | 17.22 (124) | New South Wales | 16.18 (114) | Sydney Cricket Ground |
| 30 | 10 | Tue 26-Jul-1938 | Western Australia | 14.16 (100) | South Australia | 13.12 (90) | Adelaide Oval |
| 30 | 10 | Sat 13-Aug-1955 | Western Australia | 14.17 (101) | South Australia | 12.19 (91) | Subiaco Oval |
| 34 | 11 | Sat 16-Jun-1956 | Western Australia | 11.9 (75) | South Australia | 9.10 (64) | Subiaco Oval |
| 35 | 12 | Mon 26-Jun-1939 | Western Australia | 11.21 (87) | Victoria | 10.15 (75) | Subiaco Oval |
| 35 | 12 | Sat 17-Aug-1946 | Western Australia | 20.17 (137) | South Australia | 19.11 (125) | Subiaco Oval |
| 37 | 14 | Tue 21-Jun-1994 | Western Australia | 10.14 (74) | South Australia | 7.18 (60) | Football Park, Adelaide |
| 38 | 15 | Wed 10-Aug-1927 | Western Australia | 12.15 (87) | South Australia | 9.18 (72) | Melbourne Cricket Ground |
| 38 | 15 | Mon 13-Jun-1966 | Western Australia | 13.11 (89) | South Australia | 10.14 (74) | North Hobart Oval |
| 38 | 15 | Mon 08-Oct-1979 | Western Australia | 17.21 (123) | Victoria | 16.12 (108) | Subiaco Oval |
| 41 | 17 | Sat 11-May-2013 | Western Australia | 17.16 (118) | Victoria | 15.11 (101) | Northam |
| 42 | 18 | Sat 18-Jul-1953 | Western Australia | 12.8 (80) | VFA | 8.14 (62) | Adelaide Oval |
| 42 | 18 | Wed 02-Jul-1958 | Western Australia | 11.12 (78) | South Australia | 7.18 (60) | Lake Oval, South Melbourne |
| 44 | 19 | Sat 13-Aug-1927 | Western Australia | 18.14 (122) | New South Wales | 14.19 (103) | Melbourne Cricket Ground |
| 45 | 22 | Sat 07-Jul-1973 | Western Australia | 11.14 (80) | South Australia | 8.10 (58) | Subiaco Oval |
| 46 | 23 | Tue 03-Aug-1948 | Western Australia | 11.17 (83) | Victoria | 7.18 (60) | Subiaco Oval |
| 46 | 23 | Thu 14-Jun-1956 | Western Australia | 14.19 (103) | Tasmania | 11.14 (80) | Subiaco Oval |
| 48 | 24 | Sat 04-Jun-1983 | Western Australia | 20.14 (134) | South Australia | 16.14 (110) | Subiaco Oval |
| 48 | 24 | Tue 25-May-1993 | Western Australia | 15.20 (110) | South Australia | 13.8 (86) | WACA |
| 50 | 26 | Tue 11-Aug-1959 | Western Australia | 18.19 (127) | South Australia | 14.17 (101) | Subiaco Oval |
| 50 | 26 | Sat 12-May-2018 | Western Australia | 15.12 (102) | South Australia | 11.10 (76) | Adelaide Oval |
| 52 | 27 | Sun 02-Jul-1995 | Western Australia | 14.14 (98) | Queensland | 9.17 (71) | GABBA, Brisbane |
| 53 | 29 | Mon 27-Apr-1981 | Western Australia | 16.23 (119) | Victoria | 13.12 (90) | Subiaco Oval |
| 54 | 30 | Tue 23-Aug-1938 | Western Australia | 20.15 (135) | South Australia | 14.21 (105) | Subiaco Oval |
| 55 | 35 | Mon 13-Oct-1980 | Western Australia | 17.23 (125) | Tasmania | 12.18 (90) | Football Park, Adelaide |
| 56 | 37 | Wed 06-Aug-1924 | Western Australia | 16.13 (109) | South Australia | 10.12 (72) | North Hobart Oval |
| 57 | 38 | Tue 20-Aug-1946 | Western Australia | 16.18 (114) | South Australia | 11.10 (76) | Subiaco Oval |
| 57 | 38 | Sat 31-Jul-1948 | Western Australia | 16.16 (112) | Victoria | 10.14 (74) | Subiaco Oval |
| 59 | 39 | Tue 25-Aug-1908 | Western Australia | 17.12 (114) | New South Wales | 12.3 (75) | Melbourne Cricket Ground |
| 59 | 39 | Sat 16-Aug-1924 | Western Australia | 13.5 (83) | Tasmania | 5.14 (44) | North Hobart Oval |
| 59 | 39 | Tue 27-May-1986 | Western Australia | 18.19 (127) | South Australia | 12.16 (88) | Football Park, Adelaide |
| 62 | 40 | Sat 30-Jul-1977 | Western Australia | 18.17 (125) | South Australia | 11.19 (85) | Subiaco Oval |
| 63 | 44 | Tue 11-Jun-1991 | Western Australia | 17.20 (122) | South Australia | 11.12 (78) | Subiaco Oval |
| 64 | 45 | Wed 21-Jun-1972 | Western Australia | 17.22 (124) | Tasmania | 12.7 (79) | Subiaco Oval |
| 64 | 45 | Tue 26-May-2015 | Western Australia | 18.13 (121) | South Australia | 11.10 (76) | Lathlain Park |
| 66 | 46 | Sat 18-Jul-1936 | Western Australia | 15.22 (112) | South Australia | 8.18 (66) | Subiaco Oval |
| 67 | 47 | Sat 08-Aug-1959 | Western Australia | 15.21 (111) | South Australia | 9.10 (64) | Subiaco Oval |
| 68 | 48 | Mon 04-Aug-1947 | Western Australia | 17.24 (126) | Tasmania | 11.12 (78) | North Hobart Oval |
| 68 | 48 | Sat 17-Jun-1972 | Western Australia | 15.11 (101) | South Australia | 6.17 (53) | Subiaco Oval |
| 70 | 49 | Tue 13-Aug-1929 | Western Australia | 14.10 (94) | South Australia | 6.9 (45) | Perth Oval |
| 70 | 49 | Sat 13-Aug-1949 | Western Australia | 22.20 (152) | South Australia | 15.13 (103) | Subiaco Oval |
| 72 | 50 | Sat 28-Aug-1926 | Western Australia | 18.7 (115) | South Australia | 10.5 (65) | Perth Oval |
| 73 | 53 | Wed 29-Jun-1949 | Western Australia | 15.24 (114) | New South Wales | 8.13 (61) | Sydney Cricket Ground |
| 74 | 54 | Thu 16-Jul-1953 | Western Australia | 12.19 (91) | Tasmania | 5.7 (37) | Adelaide Oval |
| 75 | 58 | Sat 19-Jun-1999 | Western Australia | 20.12 (132) | Tasmania | 10.14 (74) | Kalgoorlie |
| 75 | 58 | Sat 11-Jun-2005 | Western Australia | 18.21 (129) | Queensland | 11.5 (71) | Carrara Oval, Gold Coast |
| 77 | 59 | Sat 09-Aug-1930 | Western Australia | 20.6 (126) | Tasmania | 10.7 (67) | Adelaide Oval |
| 78 | 60 | Sat 16-Aug-1952 | Western Australia | 13.15 (93) | South Australia | 4.9 (33) | Subiaco Oval |
| 79 | 63 | Sat 27-May-2017 | Western Australia | 20.14 (134) | Victoria | 10.11 (71) | North Port Oval, Melbourne |
| 80 | 64 | Sat 21-Jul-1923 | Western Australia | 13.13 (91) | South Australia | 4.3 (27) | Perth Oval |
| 81 | 68 | Sat 29-Jul-1950 | Western Australia | 15.20 (110) | VFA | 6.6 (42) | Brisbane Exhibition Ground |
| 81 | 68 | Wed 09-Jul-1958 | Western Australia | 21.16 (142) | VFA | 11.8 (74) | Melbourne Cricket Ground |
| 83 | 69 | Sat 15-Jul-1978 | Western Australia | 24.18 (162) | South Australia | 13.15 (93) | Football Park, Adelaide |
| 84 | 71 | Wed 24-Jun-1959 | Western Australia | 25.15 (165) | Tasmania | 13.16 (94) | North Hobart Oval |
| 85 | 73 | Sat 07-Jun-2008 | Western Australia | 24.20 (164) | Queensland | 14.7 (91) | Tony Ireland Stadium, Townsville |
| 86 | 74 | Sat 22-Jul-1967 | Western Australia | 20.19 (139) | South Australia | 10.5 (65) | Subiaco Oval |
| 87 | 75 | Tue 16-Aug-1949 | Western Australia | 18.22 (130) | South Australia | 8.7 (55) | Subiaco Oval |
| 88 | 76 | Wed 25-Jul-1928 | Western Australia | 20.29 (149) | Canberra (ACT) | 9.19 (73) | Manuka Oval, Canberra |
| 88 | 76 | Tue 16-Jul-1991 | Western Australia | 19.13 (127) | Victoria | 7.9 (51) | WACA |
| 90 | 85 | Sat 24-May-2014 | Western Australia | 19.18 (132) | NEAFL | 6.11 (47) | Blacktown, NSW |
| 91 | 86 | Tue 05-Jul-1988 | Western Australia | 24.19 (163) | VFA | 11.11 (77) | Subiaco Oval |
| 92 | 87 | Sat 20-Jun-1981 | Western Australia | 21.30 (156) | South Australia | 10.9 (69) | Subiaco Oval |
| 93 | 90 | Thu 21-Jun-1956 | Western Australia | 22.20 (152) | VFA | 8.14 (62) | Subiaco Oval |
| 94 | 91 | Sat 17-Jul-1982 | Western Australia | 21.18 (144) | South Australia | 8.5 (53) | Subiaco Oval |
| 95 | 94 | Sat 08-Oct-1977 | Western Australia | 23.13 (151) | Victoria | 8.9 (57) | Subiaco Oval |
| 96 | 97 | Sat 06-Oct-1979 | Western Australia | 23.23 (161) | Tasmania | 9.10 (64) | Subiaco Oval |
| 97 | 104 | Sat 15-Aug-1914 | Western Australia | 23.24 (162) | New South Wales | 8.10 (58) | Sydney Cricket Ground |
| 98 | 111 | Sun 16-Jul-1961 | Western Australia | 24.33 (177) | Tasmania | 10.6 (66) | Brisbane Exhibition Ground |
| 98 | 111 | Sat 15-Jun-2002 | Western Australia | 24.15 (159) | Queensland | 6.12 (48) | Fremantle Oval |
| 100 | 113 | Sat 14-Jun-1969 | Western Australia | 28.24 (192) | Tasmania | 12.7 (79) | Adelaide Oval |
| 101 | 114 | Thu 13-Aug-1914 | Western Australia | 30.14 (194) | Tasmania | 12.8 (80) | Sydney Cricket Ground |
| 101 | 114 | Sat 07-Aug-1937 | Western Australia | 25.13 (163) | South Australia | 6.13 (49) | Subiaco Oval |
| 103 | 117 | Thu 14-Aug-1924 | Western Australia | 27.21 (183) | New South Wales | 9.12 (66) | North Hobart Oval |
| 104 | 122 | Tue 23-Jun-1964 | Western Australia | 24.15 (159) | Tasmania | 5.7 (37) | North Hobart Oval |
| 105 | 123 | Sat 20-Aug-1938 | Western Australia | 29.23 (197) | South Australia | 10.14 (74) | Subiaco Oval |
| 106 | 133 | Thu 09-Jun-1966 | Western Australia | 26.18 (174) | VFA | 5.11 (41) | North Hobart Oval |
| 107 | 134 | Sat 11-Jun-2016 | Western Australia | 25.14 (164) | Tasmania | 4.6 (30) | Bassendean Oval |
| 108 | 148 | Tue 05-Aug-1930 | Western Australia | 24.17 (161) | Queensland | 2.1 (13) | Adelaide Oval |
| 109 | 188 | Tue 11-Aug-1914 | Western Australia | 33.31 (229) | Queensland | 6.5 (41) | Sydney Cricket Ground |
| 110 | 264 | Tue 12-Aug-1924 | Western Australia | 43.19 (277) | Queensland | 2.1 (13) | North Hobart Oval |