| Type: | ATP Challenger |
| Santaizi ATP Challenger | |
| Current: | 2024 Santaizi ATP Challenger |
| Location: | Taipei City, Taiwan |
| Venue: | National Taiwan University Sports Center |
| Category: | ATP Challenger Tour |
| Surface: | Hard (indoor) |
| Draw: | 32S/14Q/16D |
| Prize Money: | $75,000+H |
| Website: | Official website |
The Santaizi ATP Challenger is a tennis tournament held in Taipei City, Taiwan since 2014. The event is part of the ATP Challenger Tour and is played on indoor hard courts.
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
| 2024 [1] |  Adam Walton | 3–6, 6–2, 7–6(7–3) | ||
| 2020–23 | Not held | |||
| 2019 [2] |  Dennis Novak | 6–2, 6–4 | ||
| 2018 [3] |  Yuki Bhambri | 6–3, 6–4 | ||
| 2017 [4] | Lu Yen-hsun | 6–1, 7–6(7–4) | ||
| 2016 [5] |  Daniel Evans | 3–6, 6–4, 6–4 | ||
| 2015 [6] | Sam Groth | 6–7(5–7), 6–4, 7–6(7–3) | ||
| 2014 [7] |  Gilles Müller | 6–3, 6–3 |
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
| 2024 [8] | Ray Ho Nam Ji-sung | 6–2, 6–2 | ||
| 2020–23 | Not held | |||
| 2019 [9] | Sriram Balaji Jonathan Erlich | 6–3, 6–2 | ||
| 2018 [10] | Matthew Ebden Andrew Whittington | 6–4, 5–7, [10–6] | ||
| 2017 [11] | Marco Chiudinelli Franko Škugor | 4–6, 6–2, [10–5] | ||
| Hsieh Cheng-peng Yang Tsung-hua | 7–6(8–6), 6–4 | |||
| Matthew Ebden Wang Chieh-fu | 6–1, 6–4 | |||
| Samuel Groth Chris Guccione | 6–4, 5–7, [10–8] |