| 2018 Fed Cup | 04/22 12:10 | 28 | [122] Pauline Parmentier v Madison Keys [13] | 6-7,4-6 | |
| WTA - Charleston | 04/08 14:30 | 28 | [27] Kiki Bertens v Madison Keys [14] | 6-4,6-7,7-6 | |
| WTA - Charleston | 04/06 16:40 | 27 | [101] Bernarda Pera v Madison Keys [14] | 2-6,7-6,5-7 | |
| WTA - Charleston | 04/05 18:10 | 26 | [64] Camila Giorgi v Madison Keys [14] | 4-6,3-6 | |
| WTA - Charleston | 04/04 23:00 | 25 | [84] Lara Arruabarrena v Madison Keys [14] | 1-6,6-3,3-6 | |
| WTA - Miami | 03/22 23:30 | 24 | [186] Victoria Azarenka v Madison Keys [15] | Retired | |
| WTA - Indian Wells | 03/10 19:00 | 24 | Madison Keys v Danielle Collins | 3-6,6-7 | |
| WTA - Doha | 02/14 12:30 | 25 | Catherine Bellis v Madison Keys | 2-6,6-3,6-0 | |
| WTA - Doha | 02/13 09:00 | 24 | Qiang Wang v Madison Keys | 1-6,4-6 | |
| Australian Open - Kvinder | 01/24 00:00 | 27 | Angelique Kerber v Madison Keys | 6-1,6-2 | |
| Australian Open - Kvinder | 01/22 00:00 | 26 | Madison Keys v Caroline Garcia | 6-3,6-2 | |
| Australian Open - Kvinder | 01/20 00:00 | 25 | Ana Bogdan v Madison Keys | 3-6,4-6 | |
| Australian Open - Kvinder | 01/18 05:45 | 24 | Ekaterina Alexandrova v Madison Keys | 0-6,1-6 | |
| Australian Open - Kvinder | 01/16 04:05 | 23 | Qiang Wang v Madison Keys | 1-6,5-7 | |
| WTA - Brisbane | 01/01 05:00 | 25 | Johanna Konta v Madison Keys | 4-6,6-4,6-3 | |
| WTA Wuhan | 09/25 04:30 | 24 | [79] Varvara Lepchenko v Madison Keys [12] | 6-2,7-6 | |
| US Open - Kvinder | 09/09 20:00 | 29 | [16] Madison Keys v Sloane Stephens [83] | 3-6,0-6 | |
| US Open - Kvinder | 09/08 01:55 | 28 | [22] Coco Vandeweghe v Madison Keys [16] | 1-6,2-6 | |
| US Open - Kvinder | 09/06 23:00 | 27 | [16] Madison Keys v Kaia Kanepi [418] | 6-3,6-3 | |
| US Open - Kvinder | 09/05 01:35 | 26 | [4] Elina Svitolina v Madison Keys [16] | 6-7,6-1,4-6 | |
| US Open - Kvinder | 09/03 03:40 | 25 | [18] Elena Vesnina v Madison Keys [16] | 6-2,4-6,1-6 | |
| US Open - Kvinder | 08/31 23:00 | 24 | [61] Tatjana Maria v Madison Keys [16] | 3-6,4-6 | |
| US Open - Kvinder | 08/29 23:00 | 23 | [39] Elise Mertens v Madison Keys [16] | 3-6,6-7 | |
| WTA - Cincinnati | 08/17 17:00 | 26 | [6] Garbine Muguruza v Madison Keys [17] | 6-4,3-6,7-6 | |
| WTA - Cincinnati | 08/16 15:00 | 25 | [38] Daria Kasatkina v Madison Keys [17] | 2-6,1-6 | |
| WTA - Cincinnati | 08/14 23:00 | 24 | [21] Coco Vandeweghe v Madison Keys [17] | 4-6,6-3,3-6 | |
| WTA - Toronto | 08/08 15:00 | 24 | Mirjana L Baroni v Madison Keys | Cancelled | |
| WTA - Stanford | 08/06 21:00 | 29 | [21] Madison Keys v Coco Vandeweghe [24] | 7-6,6-4 | |
| WTA - Stanford | 08/06 02:00 | 28 | [4] Garbine Muguruza v Madison Keys [21] | 3-6,2-6 | |
| WTA - Stanford | 08/04 23:00 | 27 | [21] Madison Keys v Lesia Tsurenko [32] | 6-4,6-3 |
Wikipedia - Madison Keys
Madison Keys (født 17. februar 1995 i Rock Island, Illinois) er en professionel tennisspiller fra USA. Hun har været professionel siden 2009 og har syv WTA-turneringssejre og fem finaler derudover.
Winder (7): 2023 - Eastbourne; 2022 - Adelaide [250], 2019 - Charleston, Cincinnati; 2017 - Stanford; 2016 - Birmingham; 2014 - Eastbourne.
Finalist (5): 2020 - Brisbane; 2017 - US Open; 2016 - Rome, Montréal; 2015 - Charleston.
Den eneste Grand Slam, hvor hun ikke har været i semifinalen er Wimbledon; her er hendes bedste resultat en kvartfinale. I 2017 tabte hun finalen i US Open.
Ydermere vandt hun sin første WTA-kamp i en alder af 14 år.