Year
Competition
Date
Venue and location
Surface
Opponent
Score
Result
2002
Group I, Asia/Oceania, 1st Round
8–10 February 2002
Gunsan , South Korea
Carpet, Indoor
South Korea
3–2
Won
Group I, Asia/Oceania, 2nd Round
5–7 April 2002
Muang-Thong-Thani Complex , Bangkok , Thailand
Hard, Outdoor
Thailand
1–4
Loss
2003
Group I, Asia/Oceania, 1st Round
7–9 February 2003
R.K. Khanna Tennis Stadium , New Delhi , India
Grass (Grass), Outdoor
India
1–4
Loss
Group I, Asia/Oceania, 1st Round Relegation Play-offs
4–6 April 2003
Toyota City Gymnasium , Toyota, Aichi , Japan
Carpet, Indoor
Pakistan
5–0
Won
2004
Group I, Asia/Oceania, 1st Round
6–8 February 2004
Gelora Bung Karno Tennis Stadium , Jakarta , Indonesia
Hard, Outdoor
Indonesia
3–2
Won
Group I, Asia/Oceania, 2nd Round
9–11 April 2004
Utsubo Tennis Center , Osaka , Japan
Hard, Outdoor
India
3–2
Won
2004 Davis Cup World Group play-offs
24–26 September 2004
Club Naval de Campo Las Salinas , Viña del Mar , Chile
Clay, Outdoor
Chile
0–5
Loss
2005
Group I, Asia/Oceania, 1st Round
4–6 March 2005
Soleada Club , Taoyuan , Taiwan
Hard (rebound ace), outdoor
Chinese Taipei
2–3
Loss
Group I, Asia/Oceania, 1st Round Relegation Play-offs
15–17 July 2005
Namihaya Dome , Kadoma , Osaka , Japan
Carpet (Taraflex), Indoor
Thailand
4–1
Won
2006
Group I, Asia/Oceania, 1st Round
10–12 February 2006
Namihaya Dome , Kadoma , Osaka , Japan
Carpet (Taraflex), Indoor
China
5–0
Won
Group I, Asia/Oceania, Semifinals
7–9 April 2006
Rama Gardens Hotel , Bangkok , Thailand
Hard (Plexipave), Outdoor
Thailand
2–3
Loss
2007
Group I, Asia/Oceania, 1st Round
9–11 February 2007
Beijing International Tennis Center , Beijing , China
Hard (rebound ace), indoor
China
4–1
Won
Group I, Asia/Oceania, Semifinals
6–8 April 2007
Namihaya Dome , Kadoma , Osaka , Japan
Carpet (Taraflex), Indoor
Thailand
5–0
Won
World Group, play-offs
21–23 September 2007
Namihaya Dome , Kadoma , Osaka , Japan
Carpet (Taraflex), Indoor
Romania
2–3
Loss
2008
Group I, Asia/Oceania, 1st Round
8–10 February 2008
Rizal Memorial Tennis Center , Manila , Philippines
Hard (Truflex Acrylic), Outdoor
Philippines
5–0
Won
Group I, Asia/Oceania, Semifinals
11–13 April 2008
R.K. Khanna Tennis Stadium , New Delhi , India
Grass (Grass), Outdoor
India
2–3
Loss
2009
Group I, Asia/Oceania, 1st Round
6–8 March 2009
Namihaya Dome , Kadoma , Osaka , Japan
Carpet (Taraflex), Indoor
China
5–0
Won
Group I, Asia/Oceania, Semifinals
8–10 May 2009
Sport Complex Pahlavon , Namangan , Uzbekistan
Clay, Indoor
Uzbekistan
2–3
Loss
2010
Group I, Asia/Oceania, 1st Round
5–7 March 2010
Namihaya Dome , Kadoma , Osaka , Japan
Carpet (Taraflex), Indoor
Philippines
5–0
Won
Group I, Asia/Oceania, Semifinals
7–9 May 2010
Queensland Tennis Centre , Brisbane , Australia
Clay, Outdoor
Australia
0–5
Loss
2011
Group I, Asia/Oceania, 1st Round
4–6 March 2011
Plantation Bay Resort & Spa , Lapu-Lapu City , Philippines
Clay, Outdoor
Philippines
3–1
Won
Group I, Asia/Oceania, Semifinals
8–10 July 2011
Bourbon Beans Dome , Miki , Hyōgo , Japan
Hard (Acrylic), Indoor
Uzbekistan
4–1
Won
World Group, play-offs
16–18 September 2011
Ariake Coliseum , Tokyo , Japan
Hard (Deco Turf II), Outdoor
India
4–1
Won
2012
World Group, 1st Round
10–12 February 2012
Bourbon Beans Dome , Miki , Hyōgo , Japan
Hard (DecoTurf), Indoor
Croatia
2–3
Loss
World Group, play-offs
14–16 September 2012
Ariake Coliseum , Tokyo , Japan
Hard (DecoTurf), Outdoor
Israel
2–3
Loss
2013
Group I, Asia/Oceania, 1st Round
1–3 February 2013
Ariake Coliseum , Tokyo , Japan
Hard (DecoTurf), Indoor
Indonesia
5–0
Won
Group I, Asia/Oceania, Semifinals
5–7 April 2013
Ariake Coliseum , Tokyo , Japan
Hard (DecoTurf), Indoor
South Korea
3–2
Won
World Group, play-offs
13–15 September 2013
Ariake Coliseum , Tokyo , Japan
Hard (DecoTurf), Indoor
Colombia
3–2
Won
2014
World Group, 1st Round
31 January–2 February 2014
Ariake Coliseum , Tokyo , Japan
Hard (DecoTurf), Indoor
Canada
4–1
Won
World Group, Quarterfinals
4–6 April 2014
Ariake Coliseum , Tokyo , Japan
Hard (DecoTurf), Indoor
Czech Republic
0–5
Loss
2015
World Group, 1st Round
6–8 March 2015
Doug Mitchell Thunderbird Sports Centre , Vancouver , Canada
Hard (Premier), Indoor
Canada
2–3
Loss
World Group, play-offs
18–20 September 2015
Club Campestre , Pereira , Colombia
Clay (Red Clay), Outdoor
Colombia
3–2
Won
2016
World Group, 1st Round
4–6 March 2016
Barclaycard Arena , Birmingham , Great Britain
Hard (GreenSet Cushion), Indoor
Great Britain
1–3
Loss
World Group, play-offs
16–18 September 2016
Utsubo Tennis Center , Osaka , Japan
Hard, Outdoor
Ukraine
5–0
Won
2017
World Group, 1st Round
3–5 February 2017
Ariake Coliseum , Tokyo , Japan
Hard (DecoTurf), Indoor
France
1–4
Loss
World Group, play-offs
15–18 September 2017[ a]
Utsubo Tennis Center , Osaka , Japan
Hard (DecoTurf), Outdoor
Brazil
3–1
Won
2018
World Group, 1st Round
2–4 February 2018
Morioka Takaya Arena , Morioka , Japan [ 2]
Hard (GreenSet Pro), Indoor
Italy
1–3
Loss
World Group, play-offs
14–16 September 2018
Utsubo Tennis Center , Osaka , Japan
Hard (DecoTurf), Outdoor
Bosnia and Herzegovina
4–0
Won
2019
Davis Cup qualifying round
1–2 February 2019
Guangdong Olympic Tennis Centre , Guangzhou , China
Hard (TOPLUS MC Pro System), Outdoor
China
3–2
Won
Finals, Round-Robin Group A
19 November 2019
Caja Mágica , Madrid , Spain
Hard, Indoor
France
1–2
Loss
Finals, Round-Robin Group A
20 November 2019
Caja Mágica , Madrid , Spain
Hard, Indoor
Serbia
0–3
Loss
2020–21
Davis Cup qualifying round
6–7 March 2020
Bourbon Beans Dome , Miki , Japan
Hard (DecoTurf), Indoor
Ecuador
0–3
Loss
Davis Cup World Group I
5–6 March 2021
Pakistan Sports Complex , Islamabad , Pakistan
Grass, Outdoor
Pakistan
0–4
Won