All 9 games of Round 18, 2021 are complete. The biggest win was Geelong over Fremantle by 69 points; the closest was a draw between Melbourne and Hawthorn.
Updated Sat 25 Sep 2021, 10:28pm (Melbourne time)
| Home | Score | Away | Score | Venue |
|---|---|---|---|---|
| Fremantle | 3.13 (31) | Geelong | 14.16 (100) | Optus Stadium |
| Richmond | 16.10 (106) | Brisbane Lions | 13.8 (86) | People First Stadium |
| St Kilda | 8.13 (61) | Port Adelaide | 10.14 (74) | Marvel Stadium |
| Gold Coast | 11.13 (79) | Western Bulldogs | 14.6 (90) | People First Stadium |
| Melbourne | 11.13 (79) | Hawthorn | 12.7 (79) | MCG |
| North Melbourne | 11.8 (74) | Essendon | 13.14 (92) | People First Stadium |
| Collingwood | 9.8 (62) | Carlton | 13.13 (91) | MCG |
| Adelaide | 8.8 (56) | West Coast | 14.14 (98) | Adelaide Oval |
| Greater Western Sydney | 11.6 (72) | Sydney | 15.8 (98) | People First Stadium |