UFC 243: Whittaker vs. Adesanya is a MMA event produced by the UFC that was held on October 6, 2019 at Marvel Stadium in Melbourne, Australia.
| Weight Class | Fight Card | Method | Round |
| Middleweight | Israel Adesanya defeats Robert Whittaker | KO | R2 (03:33) |
| Lightweight | Dan Hooker defeats Al Iaquinta | Decision | R3 (05:00) |
| Heavyweight | Sergey Spivak defeats Tai Tuivasa | Submission | R2 (03:14) |
| Welterweight | Dhiego Lima defeats Luke Jumeau | Decision | R3 (05:00) |
| Heavyweight | Yorgan De Castro defeats Justin Tafa | KO | R1 (02:10) |
| Women Bantamweight | Holly Holm vs Raquel Pennington | Cancelled | - |
| Weight Class | Fight Card | Method | Round |
| Welterweight | Jake Matthews defeats Rostem Akman | Decision | R3 (05:00) |
| Welterweight | Callan Potter defeats Maki Pitolo | Decision | R3 (05:00) |
| Lightweight | Brad Riddell defeats Jamie Mullarkey | Decision | R3 (05:00) |
| Weight Class | Fight Card | Method | Round |
| Women's Flyweight | Ji Yeon Kim defeats Nadia Kassem | TKO | R2 (04:59) |
| Bantamweight | Khalid Taha defeats Bruno Silva | Submission | R3 (03:00) |
