| ATP Washington MD | 08/03 23:10 | 26 | Klaasen/Mclachlan v Bublik/Golubev | 7-5,6-2 | |
| Wimbledon MD | 07/07 10:00 | 27 | Bolelli/Gonzalez v Klaasen/Mclachlan | 7-6,6-4,6-3 | |
| Wimbledon MD | 07/05 10:00 | 26 | Klaasen/Mclachlan v Chardy/Martin | 6-7,6-4,6-7,7-6,7-5 | |
| Wimbledon MD | 07/03 14:15 | 25 | Klaasen/Mclachlan v Berankis/Koepfer | 2-6,6-3,6-4 | |
| Wimbledon MD | 07/01 12:35 | 24 | Klaasen/Mclachlan v Molteni/Vavassori | 6-7,6-4,6-4 | |
| ATP Eastbourne MD | 06/23 16:50 | 26 | Klaasen/Mclachlan v Cabal/Farah | 7-6,6-7,3-10 | |
| ATP Halle MD | 06/16 12:30 | 26 | Klaasen/Mclachlan v Molteni/Pella | 6-7,6-7 | |
| ATP Stuttgart MD | 06/10 12:30 | 26 | Klaasen/Mclachlan v Begemann/Brown | 4-6,6-3,8-10 | |
| French Open MD | 06/03 14:40 | 25 | Klaasen/Mclachlan v Purcell/Saville | 6-3,2-6,1-6 | |
| French Open MD | 06/02 12:20 | 24 | Klaasen/Mclachlan v Bourgue/Pouille | 6-3,6-2 | |
| ATP Parma MD | 05/26 12:15 | 26 | Marach/Qureshi v Klaasen/Mclachlan | 6-3,6-4 | |
| ATP Geneva MD | 05/21 11:40 | 28 | Bolelli/Gonzalez v Klaasen/Mclachlan | 3-6,6-3,10-4 | |
| ATP Geneva MD | 05/20 11:50 | 27 | Klaasen/Mclachlan v Cilic/Golubev | 6-3,7-6 | |
| ATP Geneva MD | 05/18 14:10 | 26 | Klaasen/Mclachlan v Bambridge/Inglot | 6-3,7-6 | |
| ATP Rome MD | 05/13 15:40 | 26 | Klaasen/Mclachlan v Ram/Salisbury | 3-6,2-6 | |
| ATP Rome MD | 05/12 15:15 | 25 | Gonzalez/Martin v Klaasen/Mclachlan | 7-6,4-6,6-10 | |
| ATP Madrid MD | 05/06 14:35 | 26 | Klaasen/Mclachlan v Herbert/Mahut | 6-7,6-7 | |
| ATP Madrid MD | 05/05 14:25 | 25 | Klaasen/Mclachlan v Fritz/Marach | 6-2,6-3 | |
| ATP Estoril MD | 04/30 11:00 | 28 | Nys/Puetz v Klaasen/Mclachlan | 3-6,6-4,14-12 | |
| ATP Estoril MD | 04/29 10:30 | 27 | Monroe/Tiafoe v Klaasen/Mclachlan | 3-6,7-6,6-10 | |
| ATP Estoril MD | 04/28 11:00 | 26 | Bolelli/Gonzalez v Klaasen/Mclachlan | 2-6,3-6 | |
| ATP Belgrade MD | 04/20 15:25 | 26 | Sabanov/Sabanov v Klaasen/Mclachlan | 6-4,6-2 | |
| ATP Monte Carlo MD | 04/16 15:15 | 27 | Evans/Skupski v Klaasen/Mclachlan | 1-6,7-6,10-4 | |
| ATP Monte Carlo MD | 04/14 15:15 | 26 | Klaasen/Mclachlan v Ram/Salisbury | 6-7,6-3,10-5 | |
| ATP Monte Carlo MD | 04/13 11:00 | 25 | De Minaur/Peers v Klaasen/Mclachlan | 6-7,6-3,9-11 | |
| ATP Miami MD | 03/27 19:45 | 25 | Klaasen/Mclachlan v Demoliner/Gonzalez | 3-6,4-6 | |
| ATP Miami MD | 03/27 19:05 | 25 | Klaasen/Mclachlan v Dimitrov/Nishikori | Cancelled | |
| ATP Acapulco MD | 03/18 00:00 | 26 | Herbert/Mahut v Klaasen/Mclachlan | 6-4,6-4 | |
| ATP Santiago MD | 03/12 15:00 | 28 | Klaasen/Mclachlan v Bolelli/Gonzalez | 4-6,4-6 | |
| ATP Santiago MD | 03/11 15:00 | 27 | Klaasen/Mclachlan v Jarry/Mayer | 2-6,7-5,10-8 |