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Lorraine M. Guillermo vs. Chieh-Yu Hsu - H2H matches
| 19.06.19 | 1st round | Chieh-Yu Hsu | Lorraine M. Guillermo | 6-4, 6-4 | match details |  W25 Denver | Hard |
Lorraine M. Guillermo form & Chieh-Yu Hsu form
Lorraine M. Guillermo - last matches
 All Lower - Clay | ||||
| 05.09.20 1st round | vs. Shatoo Mohamad | 6-0, 6-3 |  | match details |
| 02.09.20 1st round | vs. Jwany Sherif | 6-3, 6-1 | | match details |
| 02.09.20 1st round | vs. Elvina Kalieva | 2-6, 3-6 |  | match details |
| 29.08.20 1st round | vs. Barbara Bonic | 4-6, 6-0, 8-10 | | match details |
| 29.08.20 1st round | vs. Anastasia Nefedova | 3-6, 0-6 | | match details |
| 26.08.20 1st round | vs. Barbara Bonic | 6-2, 6-3 | | match details |
| 22.08.20 1st round | vs. Tricia Mar | 6-1, 6-0 | | match details |
| 22.08.20 1st round | vs. Marcela Zacarias | 6-2, 1-6, 9-11 | | match details |
| 17.08.20 1st round | vs. Anna Morgina | 6-3, 2-6, 5-10 | | match details |
| 15.08.20 1st round | vs. Marcela Zacarias | 6-0, 6-2 | | match details |
| 12.08.20 1st round | vs. Kayla Day | 2-6, 6-2, 3-10 | | match details |
| 11.08.20 1st round | vs. Emma Davis | 2-6, 6-4, 5-10 | | match details |
| 08.08.20 1st round | vs. Maegan Manasse | 6-2, 6-2 | | match details |
| 01.08.20 1st round | vs. Giuliana Olmos | 3-6, 3-6 | | match details |
| 01.08.20 1st round | vs. Charlotte Chavatipon | 6-1, 5-2 | | match details |
| 29.07.20 1st round | vs. Jwany Sherif | 6-4, 6-73, 6-10 | | match details |
| 28.07.20 1st round | vs. Charlotte Chavatipon | 3-6, 4-6 | | match details |
| 25.07.20 1st round | vs. Mary Closs | 6-2, 6-4 | | match details |
| 25.07.20 1st round | vs. Pamela Montez | 4-6, 3-6 | | match details |
| 18.07.20 1st round | vs. Shatoo Mohamad | 7-65, 2-6, 8-10 | | match details |
| 08.07.20 1st round | vs. Sophia Whittle | 4-6, 5-7 | | match details |
| 27.06.20 1st round | vs. Rushri Wijesundera | 6-1, 1-6, 11-9 | | match details |
| 26.06.20 1st round | vs. Mary Closs | 6-4, 4-6, 7-10 | | match details |
| 15.06.20 1st round | vs. Andrea Gamiz | 6-4, 6-4 | | match details |
| 14.06.20 1st round | vs. Elvina Kalieva | 3-6, 6-3, 6-3 | | match details |
| W25 Las - Hard | ||||
| 03.03.20 q 1 | vs. Charlotte Chavatipon | 6-0, 3-6, 4-10 | | match details |
| W25 Rancho - Hard | ||||
| 24.02.20 1st round | vs. Olga Danilovic | 4-6, 6-2, 1-6 | | match details |
| W25 Malibu - Hard | ||||
| 14.01.20 q 1 | vs. Alyssa Tobita | 6-0, 6-2 | | match details |
| 14.01.20 qual. | vs. Solymar Colling | 2-6, 3-6 | | match details |
| W15 Norman - I. hard | ||||
| 04.12.19 1st round | vs. Jessica Failla | 4-6, 1-6 | | match details |
Chieh-Yu Hsu - last matches
| W35 Jackson - Clay | ||||
| 02.04.25 1st round | vs. Lea Ma | 0-6, 0-2, - Chieh-Yu Hsu - retired | | match details |
| 01.04.25 qual. | vs. Diae El Jardi | 6-4, 6-3 | | match details |
| 31.03.25 q 1 | vs. Summer Eisch | 6-0, 6-0 | | match details |
| W15 Lincoln - I. hard | ||||
| 04.11.24 q 1 | vs. Charlotte Keitel | 3-6, 0-6 | | match details |
| W35 Norman - I. hard | ||||
| 31.10.24 2nd round | vs. Thaisa Grana Pedretti | 2-6, 1-6 | | match details |
| 30.10.24 1st round | vs. Laura Brunkel | 3-6, 6-4, 6-4 | | match details |
| 29.10.24 qual. | vs. Sofia Elena Cabezas Dominguez | 4-6, 3-6 | | match details |
| 28.10.24 q 1 | vs. Roisin Gilheany | 2-6, 6-4, 10-6 | | match details |
| W35 Hilton - Hard | ||||
| 23.10.24 1st round | vs. Olivia Lincer | 3-6, 1-6 | | match details |
| 22.10.24 qual. | vs. Elizabeth Ionescu | 6-3, 3-6, 10-7 | | match details |
| 21.10.24 q 1 | vs. Leena Bennetto | 6-0, 6-0 | | match details |
| W15 Huntsville - Clay | ||||
| 13.08.24 1st round | vs. Jada Bui | 3-6, 7-61, 3-6 | | match details |
| W75 Lexington - Hard | ||||
| 29.07.24 q 1 | vs. Kyoka Okamura | 4-6, 5-7 | | match details |
| W75 Evansville - Hard | ||||
| 15.07.24 q 1 | vs. Karina Miller | 2-6, 3-6 | | match details |
| W35 Wichita - Hard | ||||
| 17.06.24 q 2 | vs. Sydni Ratliff | 1-6, 4-6 | | match details |
| 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 |
