| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 2:03.57 | Neil Lepps 2026 | 2026-03-14 |
| 100m Breaststroke | 2:07.52 | Neil Lepps 2026 | 2026-03-14 |
| 100m Butterfly | 2:27.85 | Neil Lepps 2026 | 2026-03-14 |
| 100m Freestyle | 1:43.88 | Neil Lepps 2026 | 2026-03-14 |
| 100m IM | 1:59.42 | Neil Lepps 2026 | 2026-03-14 |
| 25m Backstroke | 25.46 | 2025 Edson Orcas Splash and Dash | 2025-11-22 |
| 25m Breaststroke | 26.51 | 2025 Edson Orcas Splash and Dash | 2025-11-22 |
| 25m Butterfly | 28.11 | 2025 Edson Orcas Splash and Dash | 2025-11-22 |
| 25m Freestyle | 19.46 | 2026 Edson Orcas Candy Crush Meet | 2026-02-28 |
| 50m Backstroke | 54.48 | 2026 Edson Orcas Candy Crush Meet | 2026-02-28 |
| 50m Breaststroke | 1:00.28 | 2026 Edson Orcas Candy Crush Meet | 2026-02-28 |
| 50m Butterfly | 59.90 | 2026 Edson Orcas Candy Crush Meet | 2026-02-28 |
| 50m Freestyle | 44.67 | 2026 Edson Orcas Candy Crush Meet | 2026-02-28 |
Viswanathan, Tanvi's top personal bests include 100m Backstroke (2:03.57), 100m Breaststroke (2:07.52), 100m Butterfly (2:27.85), 100m Freestyle (1:43.88), 100m IM (1:59.42).
Viswanathan, Tanvi swims for Parkland Pirates Aquatic Club.
Viswanathan, Tanvi has competed in 5 meets.