Name: Romy Koelzer
Country: Germany
Birthdate: 22.08.91, 32 years
WTA ranking: 843
TOP ranking's position: 395 (29.04.19, 9100 points)
Points: 23
Prize money: 43773 $
Matches total: 269
Win: 163
%: 60.59 %
Country: Germany
Birthdate: 22.08.91, 32 years
WTA ranking: 843
TOP ranking's position: 395 (29.04.19, 9100 points)
Points: 23
Prize money: 43773 $
Matches total: 269
Win: 163
%: 60.59 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2021 | 0/3 | 0/0 | 0/3 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2020 | 42/18 | 1/5 | 38/12 | 0/0 | 3/1 | 0/0 | 0/0 |
| 2019 | 25/23 | 9/4 | 14/14 | 1/1 | 1/3 | 0/1 | 0/0 |
| 2018 | 41/25 | 0/1 | 31/17 | 4/2 | 6/5 | 0/0 | 0/0 |
| 2017 | 42/26 | 6/3 | 28/17 | 4/4 | 4/2 | 0/0 | 0/0 |
| 2016 | 13/10 | 0/0 | 5/6 | 5/3 | 3/1 | 0/0 | 0/0 |
| 2011 | 0/1 | 0/0 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 |
| TOTAL | 163/106 | 16/13 | 116/69 | 14/10 | 17/13 | 0/1 | 0/0 |
| perc. % | 60.59 % | 55.17 % | 62.7 % | 58.33 % | 56.67 % | 0 % | 0 % |
Romy Koelzer / scheduled / last
| no matches found |
Romy Koelzer form / surface: Hard
Romy Koelzer / surface: Hard
| 27.09.20 | q 1 | Riya Bhatia | Romy Koelzer | 4-6, 6-2, 11-9 |  | match details |  W25 Porto | Hard |
| 21.09.20 | qual. | Angela Fita Boluda | Romy Koelzer | 7-5, 6-3 | | match details | W15 Porto | Hard |
| 03.02.20 | q 2 | Rina Saigo | Romy Koelzer | 6-3, 6-4 | | match details |  W25 Nonthaburi | Hard |
| 02.02.20 | q 1 | Romy Koelzer | Tanuchaporn Yongmod | 6-0, 6-1 |  | match details | ||
| 26.01.20 | q 1 | Moyuka Uchijima | Romy Koelzer | 6-4, 7-63 | | match details | W25 Nonthaburi | Hard |
| 15.01.20 | 1st round | Sabina Sharipova | Romy Koelzer | 6-2, 6-1 | | match details |  W15 Monastir | Hard |
| 13.11.19 | 1st round | Vitalia Stamat | Romy Koelzer | 6-3, 7-5 | | match details |  W15 Sharm | Hard |
| 08.11.19 | 1/4 | Melanie Klaffner | Romy Koelzer | 6-2, 7-67 | | match details | W15 Sharm | Hard |
| 07.11.19 | 2nd round | Romy Koelzer | Svetlana Iansitova | 2-6, 6-4, 6-0 | | match details | ||
| 06.11.19 | 1st round | Romy Koelzer | Veronika Vlkovska | 6-2, 6-2 | | match details | ||
| 17.10.19 | 2nd round | Ayla Aksu | Romy Koelzer | 3-6, 6-3, 6-4 | | match details |  W15 Antalya | Hard |
| 16.10.19 | 1st round | Romy Koelzer | Karola Patricia Bejenaru | 6-1, 4-0, Karola Patricia Bejenaru - retired | | match details | ||
| 13.10.19 | fin | Mariia Tkacheva | Romy Koelzer | 6-2, 4-6, 6-1 | | match details | W15 Antalya | Hard |
| 12.10.19 | 1/2 | Romy Koelzer | Gergana Topalova | 6-1, 6-1 | | match details | ||
| 11.10.19 | 1/4 | Romy Koelzer | Ioana Gaspar | 6-2, 6-2 | | match details | ||
| 10.10.19 | 2nd round | Romy Koelzer | Carmen Schultheiss | 6-1, 6-4 | | match details | ||
| 09.10.19 | 1st round | Romy Koelzer | Stephanie Judith Visscher | 6-4, 6-75, 6-3 | | match details | ||
| 07.10.19 | qual. | Romy Koelzer | Sylvie Zund | 6-2, 6-3 | | match details | ||
| 06.10.19 | q 2 | Romy Koelzer | Shikha Tyagi | 6-0, 6-0 | | match details | ||
| 14.11.18 | 1st round | Yuriko Miyazaki | Romy Koelzer | 6-3, 6-3 | | match details |  Norman | Hard |
| 14.11.17 | 1st round | Aldila Sutjiadi | Romy Koelzer | 3-6, 6-4, 6-1 | | match details | Sharm El | Hard |
| 10.11.17 | 1/4 | Lucia Bronzetti | Romy Koelzer | 6-2, 6-2 | | match details | Sharm El | Hard |
| 09.11.17 | 1st round | Romy Koelzer | Rio Kitagawa | 6-3, 6-1 | | match details | ||
| 09.11.17 | 2nd round | Romy Koelzer | Naomi Totka | Naomi Totka - walk over | | match details | ||
| 08.10.17 | fin | Nuria Parrizas-Diaz | Romy Koelzer | 2-6, 7-5, 7-5 | | match details | Lisbon | Hard |
| 07.10.17 | 1/2 | Romy Koelzer | Karolina Berankova | 6-4, 6-1 | | match details | ||
| 06.10.17 | 1/4 | Romy Koelzer | Nandini Sharma | 6-4, 2-6, 6-2 | | match details | ||
| 04.10.17 | 2nd round | Romy Koelzer | Lou Adler | 7-5, 7-5 | | match details | ||
| 03.10.17 | 1st round | Romy Koelzer | Emilie Lindh Gallagher | 7-5, 7-5 | | match details |