Stadium: Court 4 Round: 54 Ground: Hardcourt indoor
| ITF W25 Glasgow | 2022/02/13 17:55 | 코시이시, 아유미 v Isabelle Lacy | 1-6,6-7 |
| ITF W50 Edgbaston | 2024/02/04 16:00 | 라보우트코바, 아네타 v Isabelle Lacy | 6-4,6-2 |
| ITF W25 Lousada | 2023/11/27 11:35 | Isabelle Lacy v Silva, Johanna | 6-7,3-6 |
| ITF W25 Lousada | 2023/11/20 16:25 | Kayla Cross v Isabelle Lacy | 6-2,7-6 |
| Sunderland, Singles W-ITF-GBR-04A | 2023/11/01 09:55 | Salkova, Dominika v Isabelle Lacy | 6-4,3-6,6-2 |
| ITF W60 Glasgow | 2023/10/25 12:00 | Mingge Xu v Isabelle Lacy | 7-5,6-2 |
| ITF W100 Shrewsbury | 2023/10/18 11:55 | 콜루비크, 빅토리아 v Isabelle Lacy | 6-4,6-1 |
| ITF W25 Roehampton | 2023/08/09 11:05 | Isabelle Lacy v 로디오노바, 아리나 | 3-6,0-6 |
| Wimbledon Women | 2023/06/27 13:50 | Elena-Gabriela Ruse v Isabelle Lacy | 7-5,6-2 |
| ITF W50 Edgbaston | 2024/02/05 09:55 | 살덴, 라라 v 코시이시, 아유미 | 0-6,6-1,6-3 |
| ITF W50 Edgbaston | 2024/02/04 12:30 | Yardley, Summer v 코시이시, 아유미 | 1-6,2-6 |
| ITF W35 Sharm El Sheikh | 2024/01/30 07:30 | 코시이시, 아유미 v Amelia Waligora | 4-6,4-6 |
| ITF W35 Monastir | 2024/01/22 08:30 | 코시이시, 아유미 v Saoirse Breen | 7-5,3-6,10-12 |
| ITF W25 Monastir | 2023/12/12 10:40 | 코시이시, 아유미 v Jenny Lim | 2-6,3-6 |
| ITF W25 Monastir | 2023/12/11 08:30 | 코시이시, 아유미 v Yingqun Sun | 6-0,6-0 |
| ITF W25 Monastir | 2023/12/06 10:35 | 프리사카리우, 안드리아 v 코시이시, 아유미 | 6-3,6-2 |
| ITF W25 Monastir | 2023/12/05 11:00 | 코시이시, 아유미 v Annelin Bakker | 6-1,4-6,10-8 |