| Clue | Source | Date |
|---|---|---|
| Duncan ---, British 100m breaststroke gold medallist at the 1980 Moscow Olympics | The Times Specialist | 11 Aug 2025 |
| Duncan ____ won Olympic 100m breaststroke gold in 1980 | The Times Specialist Sunday | 13 Jul 2025 |
| Duncan -, 1980 Olympic 100m breaststroke swimming gold medallist | Mirror Quiz | 15 Sep 2024 |
| 1980 Olympic men's 100m breaststroke swimming champion (7) | ||
| 1980 Olympics men's 100m breaststroke swimming gold medallist (7) |