| Australian Open Women | 01/18 02:30 | 24 | Mirjana Lucic-Baroni v Aliaksandra Sasnovich | 3-6,1-6 | |
| Australian Open Women | 01/16 03:40 | 23 | Mirjana Lucic-Baroni v Shelby Rogers | 7-6,5-7,6-2 | |
| WTA Sydney | 01/08 09:30 | 25 | Mirjana Lucic-Baroni v Petra Kvitova | Retired | |
| WTA Brisbane | 01/02 03:00 | 26 | Alize Cornet v Mirjana Lucic-Baroni | 6-1,7-5 | |
| WTA Brisbane | 12/31 02:00 | 25 | Tatjana Maria v Mirjana Lucic-Baroni | 4-6,6-4,0-6 | |
| US Open Women | 08/31 01:00 | 24 | Carla Suarez Navarro v Mirjana Lucic-Baroni | 4-6,7-6,6-2 | |
| US Open Women | 08/28 21:25 | 23 | Monica Puig v Mirjana Lucic-Baroni | 4-6,7-6,6-7 | |
| WTA New Haven | 08/23 01:05 | 26 | Mirjana Lucic-Baroni v Shuai Peng | 2-6,3-6 | |
| WTA New Haven | 08/20 19:00 | 25 | Mirjana Lucic-Baroni v Anett Kontaveit | 6-4,6-7,6-3 | |
| WTA Cincinnati | 08/15 00:30 | 24 | Mirjana Lucic-Baroni v Carla Suarez Navarro | 3-6,5-7 | |
| WTA Toronto | 08/08 15:00 | 24 | [31] Mirjana L Baroni v Magdalena Rybarikova [33] | 5-7,0-6 | |
| WTA Toronto | 08/08 15:00 | 24 | Mirjana L Baroni v Madison Keys | Cancelled | |
| Wimbledon Women | 07/03 13:00 | 23 | [28] Mirjana Lucic-Baroni v Carina Witthoeft [65] | 3-6,7-5,6-8 | |
| WTA Eastbourne | 06/25 14:40 | 24 | [24] Mirjana Lucic-Baroni v Monica Niculescu [50] | 4-6,7-5,5-7 | |
| French Open Women | 05/28 15:15 | 23 | [23] Mirjana Lucic-Baroni v Cagla Buyukakcay [156] | 3-6,3-6 | |
| WTA Rome | 05/18 09:00 | 26 | [68] Anett Kontaveit v Mirjana Lucic-Baroni [22] | 6-1,6-1 | |
| WTA Rome | 05/16 17:30 | 25 | [211] Maria Sharapova v Mirjana Lucic-Baroni [22] | Retired | |
| WTA Rome | 05/15 11:15 | 24 | [38] Lucie Safarova v Mirjana Lucic-Baroni [22] | 5-7,6-4,3-6 | |
| WTA Madrid | 05/07 10:40 | 24 | [262] Maria Sharapova v Mirjana Lucic-Baroni [20] | 4-6,6-4,6-0 | |
| WTA Stuttgart | 04/26 13:15 | 25 | [19] Kristina Mladenovic v Mirjana Lucic-Baroni [21] | 6-4,6-2 | |
| WTA Charleston | 04/08 19:35 | 28 | [23] Mirjana Lucic-Baroni v Jelena Ostapenko [66] | 3-6,7-5,4-6 | |
| WTA Charleston | 04/07 20:20 | 27 | [52] Shelby Rogers v Mirjana Lucic-Baroni [23] | 7-6,1-6,1-6 | |
| WTA Charleston | 04/06 18:15 | 26 | [23] Mirjana Lucic-Baroni v Kiki Bertens [21] | 7-6,6-4 | |
| WTA Charleston | 04/05 16:20 | 25 | [23] Mirjana Lucic-Baroni v Mona Barthel [88] | 6-3,6-2 | |
| WTA Charleston | 04/04 17:35 | 24 | [23] Mirjana Lucic-Baroni v Aleksandra Krunic [132] | 6-1,4-6,6-3 | |
| WTA Miami | 03/28 17:35 | 27 | [29] Mirjana Lucic-Baroni v Karolina Pliskova [3] | 3-6,4-6 | |
| WTA Miami | 03/27 20:15 | 26 | [29] Mirjana Lucic-Baroni v Bethanie Mattek-Sands [158] | 7-5,6-4 | |
| WTA Miami | 03/25 18:10 | 25 | [8] Agnieszka Radwanska v Mirjana Lucic-Baroni [29] | 0-6,3-6 | |
| WTA Miami | 03/23 15:00 | 24 | [94] Kateryna Bondarenko v Mirjana Lucic-Baroni [29] | 2-6,6-2,6-7 | |
| WTA Indian Wells | 03/10 20:40 | 24 | [30] Mirjana Lucic-Baroni v Kayla Day [175] | 4-6,7-5,5-7 |