Stadium: Court 08 Round: 28 Ground: Hardcourt outdoor
| ITF W15 Cancun | 2021/10/15 15:00 | Darja Semenistaja v Hina Inoue | 7-5,6-2 |
| ITF W15 Cancun | 2021/10/14 18:10 | Darja Semenistaja v Eleonore Tchakarova | 6-2,6-2 |
| ITF W15 Cancun | 2021/10/13 14:00 | Darja Semenistaja v Anna Ulyashchenko | 6-3,6-4 |
| ITF W15 Cancun | 2021/10/10 15:30 | Darja Semenistaja v Maria Jose Portillo Ramirez | 5-7,7-6,6-0 |
| ITF W15 Cancun | 2021/10/09 16:50 | Darja Semenistaja v Stacey Fung | 6-2,6-1 |
| ITF W15 Cancun | 2021/10/08 16:40 | Darja Semenistaja v Sandy Marti | 3-6,6-4,6-0 |
| ITF W15 Cancun | 2021/10/07 18:45 | Darja Semenistaja v Koral Koldobski | 6-1,6-0 |
| ITF W15 Cancun | 2021/10/06 20:05 | Darja Semenistaja v Anna Rogers | 6-3,7-5 |
| ITF W15 Cancun | 2021/10/15 15:00 | Madison Sieg v Yuliana Monroy | 6-1,6-4 |
| ITF W15 Cancun | 2021/10/12 17:00 | Alice Gillan v Madison Sieg | 4-6,2-6 |
| ITF W15 Cancun | 2021/10/07 15:00 | Madison Sieg v Taylor Ng | 6-4,5-7,1-6 |
| ITF W15 Cancun | 2021/10/05 15:30 | Jessica Hinojosa Gomez v Madison Sieg | 6-3,3-6,5-7 |
| ITF W15 L'Aquila | 2021/06/22 12:15 | Tatiana Pieri v Madison Sieg | 6-3,6-1 |
| ITF W15 Antalya | 2021/05/12 08:50 | Julia Avdeeva v Madison Sieg | 6-2,6-1 |
| ITF W25 Naples | 2021/05/04 14:00 | Madison Sieg v Gabriella Price | 6-2,2-6,8-10 |
| ITF W25 Naples | 2021/05/03 14:00 | Katrina Scott v Madison Sieg | 3-6,6-3,6-10 |