| Surname | Name | Country | Age | Gender | Hand |
|---|---|---|---|---|---|
| Boulter | Katie | Great Britain | 29 | WTA | Right |
| Bouzas Maneiro | Jessica | Spain | 23 | WTA | Right |
| Bouzkova | Marie | Czech Republic | 27 | WTA | Right |
| Boyer | Tristan | USA | 24 | ATP | Right |
| Brancaccio | Nuria | Italy | 25 | WTA | Right |
| Branstine | Carson | Canada | 25 | WTA | Right |
| Broady | Liam | Great Britain | 32 | ATP | Left |
| Bronzetti | Lucia | Italy | 27 | WTA | Right |
| Brooksby | Jenson | USA | 25 | ATP | Right |
| Broom | Charles | Great Britain | 27 | ATP | Right |
| Bublik | Alexander | Kazakhstan | 28 | ATP | Right |
| Bucsa | Cristina | Spain | 28 | WTA | Right |
| Burel | Clara | France | 24 | WTA | Right |
| Burillo Escorihuela | Irene | Spain | 28 | WTA | Right |
| Burrage Jodie | Anna | Great Britain | 26 | WTA | Right |
| Burruchaga Roman | Andres | Argentina | 24 | ATP | Right |
| Buse | Ignacio | Peru | 21 | ATP | Right |
| Cachin | Pedro | Argentina | 30 | ATP | Right |
| Carballes Baena | Roberto | Spain | 32 | ATP | Right |
| Carle Maria | Lourdes | Argentina | 26 | WTA | Right |
| Carreno-Busta | Pablo | Spain | 34 | ATP | Right |
| Cazaux | Arthur | France | 23 | ATP | Right |
| Cerundolo | Francisco | Argentina | 27 | ATP | Right |
| Cerundolo Juan | Manuel | Argentina | 24 | ATP | Left |
| Chirico | Louisa | USA | 29 | WTA | Right |
| Choinski | Jan | Great Britain | 29 | ATP | Right |
| Chwalinska | Maja | Poland | 24 | WTA | Left |
| Cilic | Marin | Croatia | 37 | ATP | Right |
| Cina | Federico | Italy | 18 | ATP | Right |
| Ciric Bagaric | Lucija | Croatia | 22 | WTA | Right |
| Cirstea | Sorana-Mihaela | Romania | 35 | WTA | Right |
| Clarke | Jay | Great Britain | 27 | ATP | Right |
| Cobolli | Flavio | Italy | 23 | ATP | Right |
| Cocciaretto | Elisabetta | Italy | 25 | WTA | Right |
| Collignon | Raphael | Belgium | 24 | ATP | Right |
| Collins | Danielle | USA | 32 | WTA | Right |
| Comesana | Francisco | Argentina | 25 | ATP | Right |
| Coria | Federico | Argentina | 33 | ATP | Right |
| Coric | Borna | Croatia | 29 | ATP | Right |
| Cornet | Alize | France | 36 | WTA | Right |
| Crawford | Oliver | Great Britain | 26 | ATP | Right |
| Cristian | Jaqueline | Romania | 27 | WTA | Right |
| Cross | Kayla | Canada | 20 | WTA | Right |
| Damm | Martin | USA | 22 | ATP | Left |
| Daniel | Taro | Japan | 33 | ATP | Right |
| Danilovic | Olga | Serbia | 25 | WTA | Left |
| Darderi | Luciano | Italy | 24 | ATP | Right |
| Dart | Harriet | Great Britain | 29 | WTA | Right |
| Davidovich Fokina | Alejandro | Spain | 26 | ATP | Right |
| Davis | Lauren | USA | 32 | WTA | Right |