
Japan
| Age | 37 (14-04-1989) |
| Country | |
| Birthplace | Wakayama, Japan |
| Height | 178 |
| Weight | 76 |
| Plays | Right-Handed |
| Backhand | One-Handed |
| Favorite Surface | |
| Coach | |
| Turned Pro | |
| Player Status | Inactive |
Hard
Clay
Grass
Indoor
All
| Aces / Game | 0.16 | 10 / 62 |
| DFs / Game | 0.24 | 15 / 62 |
| 1st Serve % | 64.3% | 245 / 381 |
| 1st Serve Win % | 62.0% | 152 / 245 |
| 2nd Serve Win % | 43.4% | 59 / 136 |
| Service Points Win % | 55.4% | 211 / 381 |
| Opponent Aces / Game | 0.27 | 17 / 62 |
| Opponent Double Faults / Game | 0.22 | 14 / 62 |
| Opponent 1st Serve % | 67.8% | 271 / 400 |
| 1st Return Win % | 36.9% | 100 / 271 |
| 2nd Return Win % | 52.7% | 68 / 129 |
| Return Points Win % | 42.0% | 168 / 400 |
| Break Points Saved Per Game | 0.26 | 16 / 62 |
| Break Points Faced Per Game | 0.64 | 40 / 62 |
| Break Points Save % | 40.0% | 16 / 40 |
| Service Hold % | 61.6% | 38 / 62 |
| Break Points Won Per Game | 0.30 | 19 / 62 |
| Opponent Break Points Per Game | 0.64 | 40 / 62 |
| BP Won % | 47.5% | 19 / 40 |
| Opp Hold % | 69.6% | 43 / 62 |
| Hong Kong F2 (Hong Kong) | ||||||
26 Jun 2017 QF | 6 2 6 1 | W | H2H 0-0 | |||
26 Jun 2017 Q1 | 6 4 6 2 | W | H2H 0-0 | |||
25 Jun 2017 R1 | 6 2 6 2 | L | H2H 0-0 | |||
| Hong Kong F1 (Hong Kong) | ||||||
22 Jun 2017 QF | 6 3 6 1 | L | H2H 0-0 | |||
| year | All | hard | clay | indoor | grass |
| 2017 | 13-9 | 12-8 | 0-0 | 1-1 | 0-0 |
| 2016 | 15-15 | 11-10 | 3-4 | 1-1 | 0-0 |
| 2015 | 15-18 | 8-10 | 6-6 | 1-2 | 0-0 |
| 2014 | 25-19 | 17-12 | 6-4 | 2-3 | 0-0 |
| 2013 | 11-4 | 1-1 | 1-1 | 9-2 | 0-0 |
| 2012 | 0-1 | 0-0 | 0-1 | 0-0 | 0-0 |
| 2011 | 0-1 | 0-0 | 0-1 | 0-0 | 0-0 |
| 2008 | 0-1 | 0-0 | 0-0 | 0-1 | 0-0 |
| Grand Slam | 0.0% | 0 / 0 |
| Masters | 0.0% | 0 / 0 |
| Main Tour | 0.0% | 0 / 0 |
| Cups | 0.0% | 0 / 0 |
| Challengers | 44.4% | 4 / 5 |
| Futures | 54.3% | 75 / 63 |
| Vs No.1 | 0.0% | 0 / 0 |
| Vs Top.5 | 0.0% | 0 / 0 |
| Vs Top.10 | 0.0% | 0 / 0 |
| Vs Top.20 | 0.0% | 0 / 0 |
| Vs Top.50 | 0.0% | 0 / 0 |
| Vs Top.100 | 0.0% | 0 / 0 |
| Overall | 52.4% | 66 / 60 |
| Hard | 54.4% | 49 / 41 |
| Clay | 48.5% | 16 / 17 |
| Indoor | 33.3% | 1 / 2 |
| Grass | 0.0% | 0 / 0 |
| Final | 0.0% | 0 / 1 |
| Semi-Final | 33.3% | 1 / 2 |
| Quarter-Final | 33.3% | 3 / 6 |
| Second | 32.0% | 8 / 17 |
| First | 52.0% | 26 / 24 |
| Qualifying Final | 58.8% | 10 / 7 |
| Qualifying R2 | 64.7% | 11 / 6 |
| Qualifying R1 | 80.0% | 20 / 5 |
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Hiroki Kondo | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Danai Udomchoke | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Jose Statham | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Yuichi Ito | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Sonchat Ratiwatana | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Divij Sharan | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Hyung-Chan Lim | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Adam Hubble | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Kento Takeuchi | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Tatsuma Ito | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Sho Katayama | ||
![]() Katsuki Nagao | Draw VIEW H2H | ![]() Takao Suzuki | ||
Boosarawongse Hwang Prediction H2H (0-0)
Apostol Barraza Prediction H2H (0-0)
Wild Majdandzic Prediction H2H (0-0)
Vales Vinciguerra Prediction H2H (0-0)
Tixhon Lechno-Wasiutynski Prediction H2H (0-0)
Mikovic Sotikovs Prediction H2H (0-0)
Lukas Neumayer Andrej Nedic Prediction H2H (0-0)
Alejandro Melero Kretzer Aleksandar Zikic Prediction H2H (0-0)