Seong Chan Hong
2015
| J500OSAKA | [1] | Semi |
| US OPEN JUNIOR | [4] | Quarter |
| WIMBLEDON JUNIOR | [5] | 1R |
| ROLAND GARROS JUNIOR | [3] | 2R |
| AUSTRALIAN OPEN JUNIOR | [7] | Final |
2014
| J500OSAKA | [5] | Quarter |
| US OPEN JUNIOR | 3R | |
| WIMBLEDON JUNIOR | 1R | |
| ROLAND GARROS JUNIOR | Quarter | |
| AUSTRALIAN OPEN JUNIOR | 2R |
2013
2012
| J500OSAKA | Semi |
Nation
KOR
Age
28 years old (born in 1997)
Rival
taylor fritz (1-1)
akira santillan (2-0)
andrea pellegrino (2-0)
Match Details
J500OSAKA
| W | 1R | James Trotter | 6-1 6-1 |
| W | 2R | Nawakarn Khunjan | 6-2 6-2 |
| W | 3R | Yuta Shimizu | 6-2 3-6 6-2 |
| W | QF | Nicola Kuhn | 6-2 6-4 |
| L | SF | Mate Valkusz | WD |
US OPEN JUNIOR
| W | 1R | Juan Pablo Ficovich | 6-1 6-3 |
| W | 2R | Andrea Pellegrino | 6-3 6-1 |
| W | 3R | Lloyd Harris | 6-3 6-4 |
| L | QF | Tommy Paul | 6-2 5-7 1-6 |
WIMBLEDON JUNIOR
| L | 1R | Denis Shapovalov | 5-7 6-4 3-6 |
ROLAND GARROS JUNIOR
| W | 1R | Patrik Niklas-Salminen | 3-6 6-4 8-6 |
| L | 2R | Jurabek Karimov | 2-6 3-6 |
AUSTRALIAN OPEN JUNIOR
| W | 1R | Alex De Minaur | 7-5 5-7 8-6 |
| W | 2R | Sora Fukuda | 6-3 6-4 |
| W | 3R | Bogdan Bobrov | 6-1 6-0 |
| W | QF | Taylor Fritz | 6-7 7-6 6-0 |
| W | SF | Akira Santillan | 6-2 7-6 |
| L | F | Roman Safiullin | 5-7 6-7 |
J500OSAKA
| W | 1R | Seiya Nakanishi | 6-0 6-3 |
| W | 2R | Isa Mammetgulyyev | 6-2 6-3 |
| W | 3R | Akira Santillan | 6-7 7-5 6-4 |
| L | QF | Taylor Fritz | 7-5 0-6 4-6 |
US OPEN JUNIOR
| W | 1R | Andrea Pellegrino | 6-1 6-1 |
| W | 2R | Reilly Opelka | 6-3 5-7 6-4 |
| L | 3R | Stefan Kozlov | 3-6 6-2 3-6 |
WIMBLEDON JUNIOR
| L | 1R | Pedro Martinez | 4-6 2-6 |
ROLAND GARROS JUNIOR
| W | 1R | Filippo Baldi | 7-6 2-6 6-3 |
| W | 2R | Jumpei Yamasaki | 6-2 2-6 6-0 |
| W | 3R | Jan Choinski | 6-4 6-1 |
| L | QF | Quentin Halys | 5-7 4-6 |
AUSTRALIAN OPEN JUNIOR
| W | 1R | Yusuke Takahashi | 6-3 6-4 |
| L | 2R | Andrey Rublev | 6-4 2-6 4-6 |
US OPEN JUNIOR
| L | 1R | Clement Geens | 6-2 6-7 4-6 |
WIMBLEDON JUNIOR
| L | 1R | Daniil Medvedev | 6-7 2-6 |
ROLAND GARROS JUNIOR
| L | 1R | Matteo Donati | 0-6 0-6 |
AUSTRALIAN OPEN JUNIOR
| L | 1R | Omar Jasika | 6-3 4-6 1-6 |
J500OSAKA
| W | 1R | Kazuma Kawachi | 4-6 7-6 6-0 |
| W | 2R | Simon Friis Soendergaard | 6-2 6-4 |
| W | 3R | Jay Andrijic | 6-1 7-6 |
| W | QF | Nikola Milojevic | WO |
| L | SF | Kaichi Uchida | 3-6 1-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10505, Number of registered players: 6,666, Number of registered results: 385,227