Jumpei Yamasaki
2015
2014
| US OPEN JUNIOR | [11] | 1R |
| WIMBLEDON JUNIOR | [15] | 1R |
| ROLAND GARROS JUNIOR | [13] | 2R |
| AUSTRALIAN OPEN JUNIOR | [14] | 2R |
Nation
JPN
Age
28 years old (born in 1997)
World Ranking
ATP Ranking　940th
Match Details
2015 US OPEN JUNIOR
| W | 1R | Marcelo Tomas Barrios Vera | 2-6 6-4 6-3 |
| L | 2R | Alex De Minaur | 1-6 6-7 |
2015 WIMBLEDON JUNIOR
| L | 1R | Casper Ruud | 6-7 7-6 3-6 |
2015 ROLAND GARROS JUNIOR
| L | 1R | Tommy Paul | 2-6 6-7 |
2015 AUSTRALIAN OPEN JUNIOR
| L | 1R | Soonwoo Kwon | 3-6 6-7 |
2014 US OPEN JUNIOR
| L | 1R | Lucas Miedler | 7-6 6-4 |
2014 WIMBLEDON JUNIOR
| L | 1R | Tim Van Rijthoven | 1-6 2-6 |
2014 ROLAND GARROS JUNIOR
| W | 1R | Bogdan Bobrov | 6-3 6-4 |
| L | 2R | Seong Chan Hong | 2-6 6-2 0-6 |
2014 AUSTRALIAN OPEN JUNIOR
| W | 1R | Gabriel Vellinho Hocevar | 6-1 6-3 |
| L | 2R | Boris Pokotilov | 4-6 6-4 6-8 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9586, Number of registered players: 5,950, Number of registered results: 317,378