| 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 Malmo | 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 | |
| ITF W60 Montpellier | 07/02 12:15 | 54 |
Luisina Giovannini
v
Tiantsoa S R Rajaonah |
6-3,5-7,6-2 | |
| ITF W25 Perigueux | 06/29 08:30 | 26 |
Anastasia Tikhonova
v
Tiantsoa S R Rajaonah |
7-6,7-6 | |
| ITF W25 Perigueux | 06/28 09:20 | 25 | Tiantsoa S R Rajaonah v Ines Ibbou | 6-0,2-6,6-3 | |
| ITF W25 Perigueux | 06/26 17:10 | 54 | Maria Toma v Tiantsoa S R Rajaonah | 3-6,0-6 | |
| ITF W25 Perigueux | 06/26 12:25 | 54 | Maelle Leclercq v Tiantsoa S R Rajaonah | 2-6,4-6 | |
| ITF W60 Biarritz | 06/13 09:55 | 54 |
Lois Boisson
v
Tiantsoa S R Rajaonah |
6-2,6-2 | |
| ITF W60 Biarritz | 06/12 10:00 | 54 |
Tiantsoa S R Rajaonah v
Kayla Cross
|
6-0,6-1 | |
| ITF W60 Saint-Gaudens | 05/17 17:20 | 25 |
Tiantsoa S R Rajaonah v
Alice Robbe
|
3-6,7-5,4-6 | |
| ITF W15 Monastir | 02/24 08:50 | 27 | Tiantsoa S R Rajaonah v Naho Sato | 2-6,2-6 | |
| ITF W15 Monastir | 02/23 10:30 | 26 | Arianna Zucchini v Tiantsoa S R Rajaonah | 6-2,6-7,3-6 | |
| ITF W15 Monastir | 02/21 11:00 | 25 | Tiantsoa S R Rajaonah v Fenyvesi/Lupulesku | 2-6,6-3,6-4 | |
| ITF W15 Monastir | 02/15 08:30 | 25 | Nina Radovanovic v Tiantsoa S R Rajaonah | 6-0,6-4 | |
| ITF W60 Andrezieux-Boutheon | 01/25 16:20 | 25 |
Tiantsoa S R Rajaonah v
Simona Waltert
|
2-6,4-6 | |
| ITF W15 Valencia | 12/10 14:00 | 29 | Alba Rey Garcia v Tiantsoa S R Rajaonah | 3-6,6-4,3-6 | |
| ITF W15 Valencia | 12/10 09:30 | 28 | Daria Shalamanova v Tiantsoa S R Rajaonah | 3-6,3-6 | |
| ITF W15 Valencia | 12/09 12:30 | 27 | Judith P Saavedra v Tiantsoa S R Rajaonah | 3-6,6-4,3-6 | |
| ITF W15 Valencia | 12/08 09:30 | 26 |
Tiantsoa S R Rajaonah v
Anouk Koevermans
|
2-6,6-4,6-4 |
Tiantsoa Sarah "Titi" Rakotomanga Rajaonah (born 15 December 2005) is a French professional tennis player. She has a career-high singles ranking of world No. 117, achieved on 5 January 2026, by the WTA, and a best doubles ranking of No. 186, reached on 6 October 2025. She has won one title on the WTA Tour in São Paulo in 2025.
Rakotomanga Rajaonah has found significant success in singles, claiming titles at various ITF events. Her first title was at a W15 tournament in Valencia, Spain, in December 2022. Following that, she secured another victory at the W15 event in Melilla, Spain, in December 2023. In March 2024, she added to her accolades with a win at the W15 tournament in Gonesse, France, and in August 2024, she triumphed at the W50 event in Arequipa, Peru.
Her ITF doubles titles started with a win at Valencia, alongside Martina Genis Salas in December 2023. She then teamed up with Elena Ruxandra Bertea to win the W15 tournament in Le Havre, France, in March 2024. Additionally, she triumphed with Émeline Dartron at the W75 Open in Saint-Gaudens, France, in both May 2024 and again in May 2025.
Rakotomanga Rajaonah made her WTA Tour debut as a qualifier at the 2025 Rouen Open, defeating Lucia Bronzetti and Jaqueline Cristian to reach her first WTA Tour quarterfinal. As a result, she reached the top 250 in the rankings, on 21 April 2025.
On September 14, 2025 she claimed her first WTA title at the SP Open by defeating Janice Tjen. After winning the title, Rakotomanga Rajaonah achieved a career-high ranking of world No. 131, before she peaked at No. 122 on 3 November 2025.