Stadium: Colosseum Round: 28 Ground: Hardcourt outdoor
| ATP Hamburg MD | 2025/05/21 17:15 | Harrison/King v Krawietz/Puetz | 5-7,7-6,8-10 |
| ATP Rome MD | 2025/05/15 15:55 | Arevalo/Pavic v Harrison/King | 7-5,6-4 |
| ATP Rome MD | 2025/05/14 11:00 | Goransson/Verbeek v Harrison/King | 3-6,2-6 |
| ATP Rome MD | 2025/05/12 17:50 | Bellucci/Romano v Harrison/King | 3-6,6-4,3-10 |
| ATP Madrid MD | 2025/05/02 15:00 | Arevalo/Pavic v Harrison/King | 6-7,7-5,10-6 |
| ATP Madrid MD | 2025/05/01 14:35 | Harrison/King v Gonzalez/Molteni | 6-4,6-2 |
| ATP Madrid MD | 2025/04/30 14:10 | Salisbury/Skupski v Harrison/King | 3-6,5-7 |
| ATP Madrid MD | 2025/04/28 10:00 | Harrison/King v Ebden/Peers | 6-4,7-6 |