| Singles | |
|---|---|
| 2018 Santaizi ATP Challenger | |
| Champion |  Yuki Bhambri |
| Runner-up | Ramkumar Ramanathan |
| Final score | 6–3, 6–4 |
Lu Yen-hsun was the defending champion but chose not to defend his title.
Yuki Bhambri won the title after defeating Ramkumar Ramanathan 6–3, 6–4 in the final. [1]
Matthew Ebden (second round)
Evgeny Donskoy (quarterfinals)
Dudi Sela (quarterfinals) Yuki Bhambri (champion)
Quentin Halys (first round) Ramkumar Ramanathan (final)
Go Soeda (semifinals) Tatsuma Ito (semifinals)| Semifinals | Final | ||||||||||||
| 8 | Tatsuma Ito | 6 | 3 | 4 | |||||||||
| 4 | Yuki Bhambri | 3 | 6 | 6 | |||||||||
| 4 | Yuki Bhambri | 6 | 6 | ||||||||||
| 6 | Ramkumar Ramanathan | 3 | 4 | ||||||||||
| 6 | Ramkumar Ramanathan | 711 | 6 | ||||||||||
| 7 | Go Soeda | 69 | 4 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Ebden | 6 | 6 | ||||||||||||||||||||||||
 T-h Yang | 3 | 4 | 1 | M Ebden | 2 | 64 | |||||||||||||||||||||
| J Jung | 6 | 6 | J Jung | 6 | 77 | ||||||||||||||||||||||
| LL | Jacob Grills | 0 | 3 | J Jung | 6 | 69 | 64 | ||||||||||||||||||||
| A Bolt | 65 | 6 | 3 | 8 | T Ito | 3 | 711 | 77 | |||||||||||||||||||
 S-w Kwon | 77 | 4 | 6 | S-w Kwon | 6 | 64 | 4 | ||||||||||||||||||||
 L Grigelis | 77 | 4 | 3 | 8 | T Ito | 4 | 77 | 6 | |||||||||||||||||||
| 8 | T Ito | 65 | 6 | 6 | 8 | T Ito | 6 | 3 | 4 | ||||||||||||||||||
| 4 | Y Bhambri | 65 | 6 | 6 | 4 | Y Bhambri | 3 | 6 | 6 | ||||||||||||||||||
 R Ortega Olmedo | 77 | 3 | 3 | 4 | Y Bhambri | 6 | 6 | ||||||||||||||||||||
 K Majchrzak | 6 | 2 | 65 |  M Bachinger | 4 | 4 | |||||||||||||||||||||
| M Bachinger | 4 | 6 | 77 | 4 | Y Bhambri | 6 | 6 | ||||||||||||||||||||
| WC | C-h Tseng | 64 | 1 | Q | C-h Lo | 4 | 2 | ||||||||||||||||||||
| Y Takahashi | 77 | 6 | Y Takahashi | 3 | 77 | 3 | |||||||||||||||||||||
| Q | Lo Chien-hsun | 6 | 1 | 6 | Q | C-h Lo | 6 | 65 | 6 | ||||||||||||||||||
| 5 | Q Halys | 3 | 6 | 3 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | R Ramanathan | 77 | 60 | 6 | |||||||||||||||||||||||
| Q | T Fancutt | 65 | 77 | 2 | 6 | R Ramanathan | 77 | 63 | 77 | ||||||||||||||||||
 L Harris | 6 | 77 | L Harris | 63 | 77 | 65 | |||||||||||||||||||||
| LL | S Mukund | 4 | 63 | 6 | R Ramanathan | 6 | 6 | ||||||||||||||||||||
| WC | T-l Wu | 6 | 77 | 3 | D Sela | 4 | 2 | ||||||||||||||||||||
| A Whittington | 3 | 61 | WC | T-l Wu | 3 | 6 | 3 | ||||||||||||||||||||
| Q | Shuichi Sekiguchi | 4 | 2 | 3 | D Sela | 6 | 1 | 6 | |||||||||||||||||||
| 3 | D Sela | 6 | 6 | 6 | R Ramanathan | 711 | 6 | ||||||||||||||||||||
| 7 | G Soeda | 77 | 6 | 7 | G Soeda | 69 | 4 | ||||||||||||||||||||
| D Kelly | 64 | 4 | 7 | G Soeda | 6 | 6 | |||||||||||||||||||||
| WC | T Chen | 710 | 6 | WC | T Chen | 3 | 1 | ||||||||||||||||||||
| Q | R Roelofse | 68 | 3 | 7 | G Soeda | 77 | 6 | ||||||||||||||||||||
| PR | S Myneni | 4 | 77 | 6 | 2 | E Donskoy | 64 | 4 | |||||||||||||||||||
| P Gunneswaran | 6 | 62 | 4 | PR | S Myneni | 2 | 4 | ||||||||||||||||||||
| WC | Y-h Hsu | 1 | 1 | 2 | E Donskoy | 6 | 6 | ||||||||||||||||||||
| 2 | E Donskoy | 6 | 6 | ||||||||||||||||||||||||
Bernard Tomic won in the final 4–6, 7–6(7–5), 6–0, against Yang Tsung-hua and claimed the title, becoming the youngest player to win a grand slam title.
Yuki Bhambri is an Indian professional tennis player. He is a former junior no. 1 and winner of the 2009 Australian Open Junior Championship. He is the first Indian to win the junior Australian Open title and the fourth Indian in history to capture a junior singles title at a Grand Slam championship. He represents India in the Davis Cup.
In the boys' singles tournament of the 2009 Australian Open, Yuki Bhambri won in the final 6–3, 6–1, against Alexandros Georgoudas.
Yuki Bhambri was the defending champion, but he did not participate that year.
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Sergey Betov and Alexander Bury were the defending champions, but decided not to compete together. Bury played alongside Teymuraz Gabashvili, but lost to Yaraslav Shyla and Andrei Vasilevski in the first round. Betov competed with Mikhail Elgin and reached the final, but lost to Yuki Bhambri and Adrián Menéndez-Maceiras, 7–5, 3–6, [8–10].
Yuki Bhambri was the defending champion but chose not to defend his title.
Gaël Monfils was the defending champion, but lost in the second round to Yuki Bhambri.
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Jordan Thompson was the defending champion but chose not to defend his title.
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This was the first edition of the tournament.
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John Isner defeated Alexander Zverev in the final, 6–7(4–7), 6–4, 6–4 to win the men's singles tennis title at the 2018 Miami Open. It was his maiden Masters 1000 title. Isner became the first new Miami Open champion in nine years.
Hiroki Moriya was the defending champion but chose not to defend his title.
David Goffin was the defending champion, but lost in the second round to Andy Murray.
Yuki Bhambri was the defending champion but chose not to defend his title.
Kevin Anderson was the defending champion, but withdrew before the tournament began because of a right elbow injury.
Yuki Bhambri was the defending champion but chose not to defend his title.
Nikoloz Basilashvili defeated Roberto Bautista Agut in the final, 7–6(7–5), 6–2 to win the men's singles tennis title at the 2021 Qatar Open.
Nicolás Barrientos and Sergio Galdós were the defending champions but chose not to defend their title.