| WTA - St. Petersburg | 01/27 09:20 | 46 | [181] Katarina Zavatska v Katie Boulter [97] | 7-6,1-6,5-7 | |
| WTA - St. Petersburg | 01/26 11:25 | 45 | [97] Katie Boulter v Bernarda Pera [68] | 7-6,3-6,6-1 | |
| Australian Open - Dames | 01/16 05:40 | 24 | [97] Katie Boulter v Aryna Sabalenka [11] | 3-6,4-6 | |
| Australian Open - Dames | 01/14 00:00 | 23 | [99] Katie Boulter v Ekaterina Makarova [57] | 6-0,4-6,7-6 | |
| Kooyong Classic - Dames | 01/08 01:40 | 1 | [87] Amanda Anisimova v Katie Boulter [99] | Retired | |
| WTA - Hobart | 01/05 02:20 | 45 | [285] Greet Minnen v Katie Boulter [97] | 6-3,3-6,6-1 | |
| Hopman Cup - Dames | 01/03 03:30 | 1 | [97] Katie Boulter v Serena Williams [16] | 1-6,6-7 | |
| Hopman Cup - Dames | 12/30 10:40 | 1 | [97] Katie Boulter v Belinda Bencic [54] | 2-6,6-7 | |
| Hopman Cup - Dames | 12/29 04:00 | 1 | [97] Katie Boulter v Maria Sakkari [41] | 0-6,6-4,2-6 | |
| ITF Women Suzhou | 10/19 06:05 | 27 | [96] Katie Boulter v Viktoriya Tomova [162] | Retired | |
| ITF Women Suzhou | 10/18 03:00 | 26 | [96] Katie Boulter v Jia-Jing Lu [189] | 6-2,6-2 | |
| ITF Women Suzhou | 10/17 02:00 | 25 | [96] Katie Boulter v Misaki Doi [136] | 6-4,6-2 | |
| WTA Tianjin | 10/12 03:30 | 27 | [6] Karolina Pliskova v Katie Boulter [101] | 5-7,6-0,6-3 | |
| WTA Tianjin | 10/11 03:30 | 26 | [227] Barbora Krejcikova v Katie Boulter [101] | 3-6,6-1,3-6 | |
| WTA Tianjin | 10/09 07:05 | 25 | [101] Katie Boulter v Maria Sakkari [42] | 7-6,6-3 | |
| WTA - Peking | 09/30 10:45 | 24 | [58] Kirsten Flipkens v Katie Boulter [108] | 4-6,6-2,7-5 | |
| WTA - Peking | 09/29 05:25 | 46 | [108] Katie Boulter v Lara Arruabarrena [76] | 6-3,6-2 | |
| WTA - Peking | 09/28 03:00 | 45 | [65] Alison Riske v Katie Boulter [108] | 6-4,3-6,2-6 | |
| WTA - Chicago | 09/05 20:05 | 25 | [104] Katie Boulter v Varvara Lepchenko [118] | Retired | |
| US Open - Dames | 08/21 15:00 | 44 | [103] Katie Boulter v Naomi Broady [155] | 4-6,6-4,1-6 | |
| ITF Women Vancouver | 08/17 17:00 | 27 | Heather Watson v Katie Boulter | 6-3,3-6,6-1 | |
| ITF Women Vancouver | 08/16 19:30 | 26 | [149] Anna Kalinskaya v Katie Boulter [106] | 5-7,2-6 | |
| ITF Women Vancouver | 08/14 19:30 | 25 | [170] Francoise Abanda v Katie Boulter [106] | 6-1,3-6,2-6 | |
| WTA - Montreal | 08/06 19:10 | 24 | [45] Lesia Tsurenko v Katie Boulter [114] | 6-4,6-2 | |
| WTA Montreal Qual | 08/05 18:45 | 45 | Katie Boulter v Leylah A Fernandez | 2-6,6-3,6-4 | |
| WTA Montreal Qual | 08/04 20:00 | 44 | Donna Vekic v Katie Boulter | Walkover | |
| WTA - Washington | 08/02 01:00 | 26 | [202] Allie Kiick v Katie Boulter [118] | 6-4,5-7,6-1 | |
| WTA - Washington | 07/30 18:00 | 25 | [118] Katie Boulter v Aleksandra Krunic [47] | 6-2,6-0 | |
| Wimbledon - Dames | 07/05 10:30 | 24 | [122] Katie Boulter v Naomi Osaka [18] | 3-6,4-6 | |
| Wimbledon - Dames | 07/03 15:15 | 23 | [122] Katie Boulter v Veronica Cepede Royg [123] | 6-4,5-7,6-4 |
Wikipedia - Katie Boulter
Katie Boulter (Leicester, 1 augustus 1996) is een tennisspeelster uit het Verenigd Koninkrijk. Zij speelt rechtshandig en heeft een tweehandige backhand. Boulter is actief in het internationale tennis sinds 2011.