| ITF W75 - Grenoble | 02/04 15:10 | 54 | Tiantsoa S R Rajaonah v Ekaterina Ovcharenko | 7-6,6-4 | |
| ITF W15 - Melilla | 12/17 08:30 | 29 | Ines Murta v Tiantsoa S R Rajaonah | Retired | |
| ITF W15 - Melilla | 12/16 09:30 | 28 | Tiantsoa S R Rajaonah v Paula A Manjon | 6-3,6-4 | |
| ITF W15 - Melilla | 12/15 11:10 | 27 | Anastasia Safta v Tiantsoa S R Rajaonah | 3-6,3-6 | |
| ITF W15 - Melilla | 12/14 10:55 | 26 | Cristina Diaz Adrover v Tiantsoa S R Rajaonah | 3-6,2-6 | |
| ITF W15 - Melilla | 12/13 12:00 | 25 | Maya Bordereau v Tiantsoa S R Rajaonah | 6-4,3-6,1-6 | |
| ITF W15 - Valencia | 12/10 09:25 | 29 | Ruth R Llaverias v Tiantsoa S R Rajaonah | 7-5,6-2 | |
| ITF W15 - Valencia | 12/09 10:00 | 28 | Jessica Bertoldo v Tiantsoa S R Rajaonah | 0-6,4-6 | |
| ITF W15 - Valencia | 12/08 12:20 | 27 | Tiantsoa S R Rajaonah v Sarah Tatu | 4-6,6-4,6-4 | |
| ITF W15 - Valencia | 12/07 12:25 | 26 | Tiantsoa S R Rajaonah v Ines Murta | 6-4,6-3 | |
| ITF W15 - Valencia | 12/05 10:15 | 25 | Tiantsoa S R Rajaonah v Jimar G G Gonzalez | 7-5,7-6 | |
| ITF W15 - Valencia | 12/03 09:30 | 29 | Tiantsoa S R Rajaonah v Chantal Sauvant | 4-6,7-6,3-6 | |
| ITF W15 - Valencia | 12/02 08:30 | 28 | Gina Feistel v Tiantsoa S R Rajaonah | 3-6,6-7 | |
| ITF W15 - Valencia | 12/01 09:00 | 27 | Mina Hodzic v Tiantsoa S R Rajaonah | 3-6,4-6 | |
| ITF W15 - Valencia | 11/30 11:00 | 26 | Marta Pico Navarro v Tiantsoa S R Rajaonah | 0-6,1-6 | |
| ITF W15 - Valencia | 11/29 09:55 | 25 | Tiantsoa S R Rajaonah v Ani Vangelova | 6-3,6-2 | |
| ITF W40 - Heraklion | 11/06 07:00 | 62 | Anastasia Zolotareva v Tiantsoa S R Rajaonah | 6-3,6-4 | |
| ITF W40 - Heraklion | 10/29 08:05 | 62 | Tiantsoa S R Rajaonah v Melanie Klaffner | 7-5,1-6,2-6 | |
| ITF W25 - Heraklion | 10/25 11:10 | 25 | Sofia Rocchetti v Tiantsoa S R Rajaonah | 7-6,7-6 | |
| ITF W25 - Heraklion | 10/24 06:30 | 19 | Lucie Pawlak v Tiantsoa S R Rajaonah | 4-6,4-6 | |
| ITF W25 - Heraklion | 10/23 07:30 | 62 | Annika Kannan v Tiantsoa S R Rajaonah | 2-6,0-6 | |
| ITF W25 - Heraklion | 10/22 11:00 | 62 | Krystyna Pochtovyk v Tiantsoa S R Rajaonah | 1-6,1-6 | |
| ITF W25 - Malmö | 08/22 08:00 | 25 | Tiantsoa S R Rajaonah v Malene Helgo | 5-7,5-7 | |
| ITF W25 - Koksijde | 08/06 11:15 | 54 | Polina Bakhmutkina v Tiantsoa S R Rajaonah | 6-2,6-3 | |
| ITF W15 - Casablanca | 07/28 13:15 | 27 | Tiantsoa S R Rajaonah v Aya El Aouni | 2-6,6-4,5-7 | |
| ITF W15 - Casablanca | 07/27 12:00 | 26 | Tiantsoa S R Rajaonah v Malak El Allami | 7-5,6-4 | |
| ITF W15 - Casablanca | 07/26 14:00 | 25 | Tiantsoa S R Rajaonah v Demi Tran | 6-3,7-6 | |
| ITF W15 - Casablanca | 07/22 12:10 | 28 | Tiantsoa S R Rajaonah v Merel Hoedt | 4-6,5-7 | |
| ITF W15 - Casablanca | 07/21 12:25 | 27 | Tiantsoa S R Rajaonah v Alexandra Shubladze | 7-6,6-7,7-5 | |
| ITF W15 - Casablanca | 07/20 10:00 | 26 | Gloria Ceschi v Tiantsoa S R Rajaonah | 6-3,1-6,6-7 |
Tiantsoa Sarah Rakotomanga Rajaonah (born 15 December 2005) is a French professional tennis player.
She has career-high WTA rankings of 552 in singles and 433 in doubles, both attained on 20 May 2024.
In 2022, she won her first singles title in Valencia, Spain. A year later, she achieved her second victory in Melilla, Spain.
Rakotomanga Rajaonah won her first major ITF title at the W75 in Saint-Gaudens in the doubles draw, partnering Émeline Dartron.