| World Seniors Darts Masters 2023 | 2023/06/25 12:05 | Neil Duff v Richie Howson | 3-4 |
| World Seniors Darts Masters 2023 | 2023/06/24 15:40 | Bob Anderson v Richie Howson | 0-4 |
| World Seniors Champion of Champions 2023 | 2023/03/26 14:15 | Richie Howson v Leonard Gates | 10-13 |
| World Seniors Champion of Champions 2023 | 2023/03/26 11:05 | Richie Howson v David Cameron | 13-11 |
| Senior Champions of Champions | 2023/03/25 12:10 | Robert Thornton v Richie Howson | 6-10 |
| Modus Super Series Week 6 2023 | 2023/03/18 22:30 | Richie Howson v Matt Clark | 2-4 |
| Modus Super Series Week 6 2023 | 2023/03/18 21:30 | Chas Barstow v Richie Howson | 2-4 |
| Modus Super Series Week 6 2023 | 2023/03/18 20:05 | Richie Howson v Darryl Fitton | 4-1 |
| World Seniors Darts Masters 2023 | 2023/06/25 13:05 | Phil Taylor v Dennis Harbour | 2-4 |
| World Seniors Darts Masters 2023 | 2023/06/24 13:10 | Martin Adams v Dennis Harbour | 2-4 |
| World Seniors Darts Championship 2023 | 2023/02/11 14:15 | Dennis Harbour v Kevin Painter | 0-3 |
| World Seniors Darts Championship 2023 | 2023/02/09 19:50 | Trina Gulliver v Dennis Harbour | 0-3 |
| BDO World Championship 2019 | 2017/01/10 22:10 | Scott Waites v Dennis Harbour | 3-1 |
| BDO World Championship 2019 | 2017/01/09 14:10 | Craig Caldwell v Dennis Harbour | 1-3 |