| Surname | Name | Country | Age | Gender | Hand |
|---|---|---|---|---|---|
| Lajovic | Dusan | Serbia | 35 | ATP | Right |
| Lamens | Suzan | Netherlands | 26 | WTA | Right |
| Landaluce | Martin | Spain | 20 | ATP | Right |
| Lehecka | Jiri | Czech Republic | 24 | ATP | Right |
| Lepchenko | Varvara | USA | 39 | WTA | Left |
| Lestienne | Constant | France | 33 | ATP | Right |
| Li | Ann | USA | 25 | WTA | Right |
| Liang En | Shuo | Chinese Taipei | 25 | WTA | Right |
| Linette | Magda | Poland | 34 | WTA | Right |
| Liu | Claire | USA | 25 | WTA | Right |
| Llamas Ruiz | Pablo | Spain | 23 | ATP | Right |
| Loffhagen | George | Great Britain | 24 | ATP | Right |
| Lys | Eva | Germany | 24 | WTA | Right |
| Ma | Yexin | China | 26 | WTA | Right |
| Machac | Tomas | Czech Republic | 25 | ATP | Right |
| Majchrzak | Kamil | Poland | 30 | ATP | Right |
| Mandlik | Elizabeth | USA | 24 | WTA | Right |
| Mannarino | Adrian | France | 37 | ATP | Left |
| Maria | Tatiana | Germany | 38 | WTA | Right |
| Marino | Rebecca | Canada | 35 | WTA | Right |
| Marozsan | Fabian | Hungary | 26 | ATP | Right |
| Marterer | Maximilian | Germany | 30 | ATP | Left |
| Martic | Petra | Croatia | 35 | WTA | Right |
| Martin | Dan | Canada | 26 | ATP | Right |
| Martinez | Pedro | Spain | 28 | ATP | Right |
| Martinez Cirez | Carlota | Spain | 25 | WTA | Right |
| Masarova | Rebeka | Switzerland | 26 | WTA | Right |
| Mayot | Harold | France | 24 | ATP | Right |
| Mboko | Victoria | Canada | 19 | WTA | Right |
| McCabe | James | Australia | 22 | ATP | Right |
| McDonald | Mackenzie | USA | 30 | ATP | Right |
| McNally | Caty | USA | 24 | WTA | Right |
| Medjedovic | Hamad | Serbia | 22 | ATP | Right |
| Medvedev | Daniil | Russia | 30 | ATP | Right |
| Meligeni Rodrigues Alves | Felipe | Brazil | 28 | ATP | Right |
| Mensik | Jakub | Czech Republic | 20 | ATP | Right |
| Mertens | Elise | Belgium | 30 | WTA | Right |
| Michelsen | Alex | USA | 21 | ATP | Right |
| Minnen | Greetje | Belgium | 28 | WTA | Right |
| Misolic | Filip | Austria | 24 | ATP | Right |
| Miyazaki | Yuriko | Great Britain | 30 | WTA | Right |
| Mladenovic | Kristina | France | 32 | WTA | Right |
| Mochizuki | Shintaro | Japan | 22 | ATP | Right |
| Moller | Elmer | Denmark | 22 | ATP | Right |
| Monday | Johannus | Great Britain | 24 | ATP | Left |
| Monfils | Gael | France | 39 | ATP | Right |
| Monnet | Carole | France | 24 | WTA | Left |
| Monteiro | Thiago | Brazil | 31 | ATP | Left |
| Montgomery | Robin | USA | 21 | WTA | Left |
| Moreno De Alboran | Nicolas | USA | 28 | ATP | Right |