Sebastian Nothhaft
2019
| JAPLANTATION | 1R | |
| J1 BRADENTON | [16] | 1R |
| JB1 SEOGWIPO | [14] | Win |
| J2 CHUNCHEON | 2R | |
| J2 NAGOYA | 1R | |
| JAOSAKA | 1R | |
| JACAPETOWN | [14] | 1R |
| J2 STELLENBOSCH | 2R | |
| J4 STELLENBOSCH | [5] | 3R |
| J4 MAURITIUS | [2] | Win |
| J3 HARARE | [6] | Final |
| J4 HARARE-2 | [4] | Quarter |
| J4 HARARE | [4] | Quarter |
| J2 SHANGHAI | 1R | |
| J4 NONTHABURI-2 | [8] | Final |
| J4 NONTHABURI | [8] | Semi |
| J5 NONTHABURI | [2] | Quarter |
| J4 CADOLZBURG | [8] | Quarter |
| J4 FREDERIKSBERG | [6] | Quarter |
2018
| J2 TINHAUHONGKONG | 1R | |
| J3 STELLENBOSCHCAPETOWN | Quarter | |
| J3 HARARE | 1R | |
| J4 HARARE-2 | Quarter | |
| J4 HARARE | Quarter | |
| J4 CADOLZBURG | 2R |
2017
Nation
HKG
Generation
Born in 2001 (24-25 years old)
Year-end Junior World Ranking
- Year-end 2019 76th
Rival
toky ranaivo (2-1)
taiyo yamanaka (0-2)
jean marc malkowski (2-0)
nino ehrenschneider (1-1)
khomtat kitthachok (2-0)
Match Details
JAPLANTATION
| L | 1R | Blaise Bicknell | 3-6 5-4 |
J1 BRADENTON
| L | 1R | Juncheng Shang | 3-6 6-2 3-6 |
JB1 SEOGWIPO
| W | 1R | Gun Hyoung Kim | 7-5 6-0 |
| W | 2R | Woohyuk Sim | 6-2 6-1 |
| W | 3R | Yunchaokete Bu | 7-6 4-6 6-4 |
| W | QF | Jungwon Park | 6-2 6-4 |
| W | SF | Philip Sekulic | 6-2 6-2 |
| W | F | Wai Yu Kai | 7-6 0-6 7-6 |
J2 CHUNCHEON
| W | 1R | Hyeondeok Yoon | 6-3 6-3 |
| L | 2R | Lui Maxted | 6-4 5-7 3-6 |
J2 NAGOYA
| L | 1R | Yamato Sueoka | 6-2 2-6 2-6 |
JAOSAKA
| L | 1R | Keisuke Saitoh | 4-6 7-6 3-6 |
JACAPETOWN
| L | 1R | Charl Morgan | 6-7 3-6 |
J2 STELLENBOSCH
| W | 1R | Rohan Loubser | 6-1 6-3 |
| L | 2R | Nino Ehrenschneider | 4-6 2-6 |
J4 STELLENBOSCH
| W | 2R | Erich Sullwald | 6-1 6-1 |
| L | 3R | Mikaeel Woodman | 6-7 6-2 0-6 |
J4 MAURITIUS
| W | 1R | Andreas Scott | 6-4 6-0 |
| W | 2R | Mathieu Josserand | 6-4 6-2 |
| W | QF | Jay Dylan Hara Friend | 6-3 6-3 |
| W | SF | Toky Ranaivo | 6-2 7-6 |
| W | F | Jean Marc Malkowski | 6-3 6-2 |
J3 HARARE
| W | 1R | Carl Roothman | 6-2 4-6 6-3 |
| W | 2R | Vansh Bhagtani | 6-1 6-4 |
| W | QF | Jean Marc Malkowski | 6-3 7-6 |
| W | SF | Eshaan Lumba | 6-4 7-6 |
| L | F | Khololwam Montsi | 3-6 3-6 |
J4 HARARE-2
| W | 2R | Yassine Ben Jemaa | 6-0 6-3 |
| W | 3R | Tatenda Mutetwa | 4-6 6-2 6-2 |
| L | QF | Bruno Nhavene | 6-7 3-6 |
J4 HARARE
| W | 2R | Thato Holmes | 6-0 6-3 |
| W | 3R | Ethan Denzel Sibanda | 6-4 6-4 |
| L | QF | Aaryan Zaveri | 6-7 3-6 |
J2 SHANGHAI
| L | 1R | Hikaru Takeda | 4-6 4-6 |
J4 NONTHABURI-2
| W | 2R | Tarm Rojanasoonthon | 6-1 6-4 |
| W | 3R | Guntinun Sootinun-Opart | 6-3 6-4 |
| W | QF | Nishant Dabas | 6-1 6-7 6-1 |
| W | SF | Dev Javia | 7-5 5-7 6-3 |
| L | F | Taiyo Yamanaka | 6-7 0-6 |
J4 NONTHABURI
| W | 2R | Khomtat Kitthachok | 7-6 7-6 |
| W | 3R | Pawin Jirapoomdaje | 6-3 6-2 |
| W | QF | Jin Gu | 6-3 6-2 |
| L | SF | Taiyo Yamanaka | 2-6 3-6 |
J5 NONTHABURI
| W | 2R | Khomtat Kitthachok | 6-1 6-2 |
| W | 3R | Qing Lihao | 6-3 6-2 |
| L | QF | Peerapat Dedthonglang | 6-1 4-6 5-7 |
J4 CADOLZBURG
| W | 2R | Yannick Wunderlich | 6-1 7-6 |
| W | 3R | Nino Ehrenschneider | 7-6 2-6 7-5 |
| L | QF | Pierre Yves Bailly | 4-6 2-6 |
J4 FREDERIKSBERG
| W | 1R | Linus Carlsson Halldin | 6-3 7-6 |
| W | 2R | Pol Sanchez Vinas | 6-3 6-4 |
| L | QF | Olle Wallin | 3-6 6-4 3-6 |
J2 TINHAUHONGKONG
| L | 1R | Han-Chih Lin | 4-6 4-6 |
J3 STELLENBOSCHCAPETOWN
| W | 1R | Cameron Slabbert | 6-1 6-1 |
| W | 2R | Jordan Coutinho | 6-0 6-2 |
| L | QF | Khololwam Montsi | 2-6 4-6 |
J3 HARARE
| L | 1R | Toky Ranaivo | 6-7 3-6 |
J4 HARARE-2
| W | 1R | Michael Happy | 6-1 6-2 |
| W | 2R | Gerhardt Marius Becker | 6-3 4-6 7-6 |
| W | 3R | Jaishvin Sidana | 7-5 6-2 |
| L | QF | Codie Schalk Van Schalkwyk | 3-6 6-3 1-6 |
J4 HARARE
| W | 1R | Andrew Kunaka | 6-0 6-1 |
| W | 2R | Toky Ranaivo | 7-6 3-6 6-3 |
| W | 3R | Thabo Ncube | 5-7 7-5 7-6 |
| L | QF | Dev Javia | 6-4 2-6 2-6 |
J4 CADOLZBURG
| W | 1R | Rudolf Niklas Christiansen | 6-3 6-4 |
| L | 2R | Noah Thurner | 5-7 5-7 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 14549, Number of registered players: 7,577, Number of registered results: 451,713