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Chieh-Yu Hsu vs. Piia Suomalainen - H2H matches
| 04.02.13 | qual. | Chieh-Yu Hsu | Piia Suomalainen | 6-4, 6-1 | match details |  Midland | I. hard |
Chieh-Yu Hsu form & Piia Suomalainen form
Chieh-Yu Hsu - last matches
| W35 Boca - Clay | ||||
| 08.04.24 q 1 | vs. Gabriella Price | 6-4, 0-6, 8-10 |  | match details |
| W35 Jackson - Clay | ||||
| 03.04.24 1st round | vs. Ariana Anazagasty-Pursoo | 6-1, 5-7, 4-6 | | match details |
| W35 Wesley - Clay | ||||
| 06.02.24 qual. | vs. Panna Bartha | 3-6, 2-6 | | match details |
| 05.02.24 q 1 | vs. Tara Malik | 6-0, 6-0 |  | match details |
| W75 Rome - I. hard | ||||
| 31.01.24 1st round | vs. Iryna Shymanovich | 4-6, 4-6 | | match details |
| 30.01.24 qual. | vs. Alana Smith | 6-3, 7-64 | | match details |
| 29.01.24 q 1 | vs. Autumn Clemons | 6-1, 6-1 | | match details |
| W75+H Vero - Clay | ||||
| 22.01.24 q 1 | vs. Sophie Chang | 2-6, 3-6 | | match details |
| W35 Naples - Clay | ||||
| 16.01.24 qual. | vs. Mayuka Aikawa | 0-6, 3-6 | | match details |
| 15.01.24 q 1 | vs. Taylor Marie Gales | 6-0, 6-1 | | match details |
| W35 Naples - Clay | ||||
| 09.01.24 qual. | vs. Angella Okutoyi | 2-6, 6-3, 6-10 | | match details |
| 08.01.24 q 1 | vs. Cookie Jarvis-Tredgett | 6-0, 6-2 | | match details |
| W15 Norman - I. hard | ||||
| 03.11.23 1/4 | vs. Lucia Peyre | 3-6, 3-6 | | match details |
| 02.11.23 2nd round | vs. Kolie Allen | 6-3, 6-4 | | match details |
| 31.10.23 1st round | vs. Mercedes Aristegui | 4-6, 7-5, 7-64 | | match details |
| W80 Tyler - Hard | ||||
| 24.10.23 qual. | vs. Dj Bennett | 1-6, 5-7 | | match details |
| 23.10.23 q 1 | vs. Taylor Gruber | 6-0, 6-2 | | match details |
| W15 Jackson - Hard | ||||
| 17.10.23 1st round | vs. Carolina Gomez | 2-6, 1-6 | | match details |
| W25 Florence - Hard | ||||
| 10.10.23 qual. | vs. Hibah Shaikh | 3-6, 2-6 | | match details |
| 09.10.23 q 1 | vs. Noa Boyd | 6-4, 6-3 | | match details |
| W60 Rome - I. hard | ||||
| 04.10.23 1st round | vs. Stacey Fung | 3-6, 2-6 | | match details |
| 03.10.23 qual. | vs. Ana Grubor | 6-3, 5-7, 7-63 | | match details |
| 02.10.23 q 1 | vs. Emma Lella | 7-5, 6-3 | | match details |
| W15 Hilton - Clay | ||||
| 29.09.23 1/4 | vs. Layne Sleeth | 2-6, 1-6 | | match details |
| 28.09.23 2nd round | vs. Lucciana Perez Alarcon | 6-4, 6-2 | | match details |
| 27.09.23 1st round | vs. Tyra Caterina Grant | 6-1, 6-4 | | match details |
| W60 Berkeley - Hard | ||||
| 18.09.23 q 1 | vs. Ellie Douglas | 1-6, 1-6 | | match details |
| W60 Lexington - Hard | ||||
| 01.08.23 qual. | vs. Sara Daavettila | 1-6, 3-6 | | match details |
| 31.07.23 q 1 | vs. Ana Grubor | 5-7, 6-0, 6-2 | | match details |
| W25 Wichita - Hard | ||||
| 21.06.23 1st round | vs. Reese Brantmeier | 2-6, 1-6 | | match details |
Piia Suomalainen - last matches
 Savitaipale - Clay | ||||
| 02.08.18 2nd round | vs. Merel Hoedt | 1-6, 2-6 | | match details |
| 01.08.18 1st round | vs. Sydney Berlin | 6-4, 6-4 | | match details |
| Tampere - Clay | ||||
| 25.07.18 1st round | vs. Francesca Jones | 1-6, 3-6 | | match details |
 Antalya - Clay | ||||
| 16.05.18 1st round | vs. Magdalena Pantuckova | 1-6, 0-2, - Piia Suomalainen - retired | | match details |
| 14.05.18 q 1 | vs. Alina Kozaeva | 6-0, 6-1 | | match details |
| 14.05.18 qual. | vs. Andreea Velcea | 6-2, 5-7, 6-3 | | match details |
| Antalya - Clay | ||||
| 11.05.18 1/4 | vs. Marianna Zakarlyuk | 6-71, 3-6 | | match details |
| 10.05.18 2nd round | vs. Vasiliki Karvouni | 6-3, 6-2 | | match details |
| 09.05.18 1st round | vs. Ipek Oz | 6-4, 6-4 | | match details |
| Antalya - Clay | ||||
| 02.05.18 1st round | vs. Aleksandra Pospelova | 3-6, 6-3, 4-6 | | match details |
| 30.04.18 qual. | vs. Iman Garshong | 6-0, 6-1 | | match details |
| 29.04.18 q 2 | vs. Stephanie Thour | 6-1, 6-1 | | match details |
| Antalya - Clay | ||||
| 25.04.18 1st round | vs. Julia Stamatova | 6-2, 1-6, 3-6 | | match details |
 Heraklion - Clay | ||||
| 28.03.18 1st round | vs. Lisa Sabino | 3-6, 1-6 | | match details |
| 26.03.18 qual. | vs. Sara Lanca | 6-0, 6-3 | | match details |
| 25.03.18 q 2 | vs. Tiziana Marie Schomburg | 6-2, 6-2 | | match details |
| Heraklion - Clay | ||||
| 20.03.18 1st round | vs. Francesca Jones | 3-6, 4-6 | | match details |
| 19.03.18 qual. | vs. Sophia Intert | 6-0, 6-2 | | match details |
| 18.03.18 q 2 | vs. Mila Mejic | 6-1, 7-5 | | match details |
| Heraklion - Clay | ||||
| 13.03.18 qual. | vs. Alexandra Maria Staiculescu | 1-6, 3-6 | | match details |
| 11.03.18 q 2 | vs. Eva Kolarovska | 6-1, 6-0 | | match details |
| Helsinki - I. hard | ||||
| 15.11.17 2nd round | vs. Ekaterina Kazionova | 6-74, 1-6 | | match details |
| 14.11.17 1st round | vs. Andrina Peer | 4-6, 6-1, 6-3 | | match details |
| Stillwater - Hard | ||||
| 27.09.17 1st round | vs. Ana Sofia Sanchez | 0-6, 1-6 | | match details |
| 25.09.17 q 2 | vs. Taylor Dean | 6-3, 6-0 | | match details |
| 25.09.17 qual. | vs. Lisa-Marie Rioux | 4-6, 6-3, 6-1 | | match details |
| Lubbock - Hard | ||||
| 18.09.17 q 2 | vs. Anastasiya Antal | 1-6, 4-6 | | match details |
| Redding - Hard | ||||
| 13.09.17 1st round | vs. Lauren Marker | 0-6, 1-6 | | match details |
| 11.09.17 q 1 | vs. Julia Fisch | 6-3, 6-4 | | match details |
| 11.09.17 qual. | vs. Kerrie Cartwright | 3-6, 6-4, 7-5 | | match details |
