Marvel Stadium · Sat 17 Jul 2021, 1:45pm AEST
Port Adelaide beat St Kilda 10.14 (74) to 8.13 (61) in the 2021 Round 18 at Marvel Stadium on Sat 17 Jul 2021.
Updated Sat 25 Sep 2021, 10:28pm (Melbourne time)
| Competition | AFL 2021, Round 18 |
| Venue | Marvel Stadium |
| Bounce | Sat 17 Jul 2021, 1:45pm AEST |
| St Kilda | 8.13 (61) |
| Port Adelaide | 10.14 (74) |
| Result | Port Adelaide by 13 points |