1999-04-12

Tokyo - Hard - R64

Oliver Gross (#94)
def
Yasufumi Yamamoto (#569)
6-4 6-4

1997-04-14

Tokyo - Hard - R64

Carsten Arriens (#322)
def
Yasufumi Yamamoto (#544)
6-2 7-5

1996-04-15

Tokyo - Hard - R64

Kenneth Carlsen (#61)
def
Yasufumi Yamamoto (#306)
5-7 6-4 6-2

1994-04-29

Davis Cup G1 SF: NZL vs JPN - Carpet - RR

Yasufumi Yamamoto (#317)
def
Kelly Evernden (#785)
7-5 7-6(6)

1994-04-29

Davis Cup G1 SF: NZL vs JPN - Carpet - RR

Brett Steven (#75)
def
Yasufumi Yamamoto (#317)
6-3 6-4 2-6 7-6(3)

1994-04-04

Tokyo Outdoor - Hard - R64

Andrei Olhovskiy (#93)
def
Yasufumi Yamamoto (#318)
6-4 6-4

1994-03-28

Osaka - Hard - R32

Jeff Tarango (#104)
def
Yasufumi Yamamoto (#322)
6-1 6-4

1994-03-25

Davis Cup G1 QF: JPN vs PHI - Carpet - RR

Yasufumi Yamamoto (#320)
def
Robert Angelo (#)
3-6 6-1 6-2

1994-03-25

Davis Cup G1 QF: JPN vs PHI - Carpet - RR

Yasufumi Yamamoto (#320)
def
Joseph Lizardo (#753)
6-2 6-3 6-3

1994-02-04

Davis Cup G1 PR: CHN vs JPN - Carpet - RR

Yasufumi Yamamoto (#316)
def
Bing Pan (#395)
6-4 7-5

1994-02-04

Davis Cup G1 PR: CHN vs JPN - Carpet - RR

Yasufumi Yamamoto (#316)
def
Jia Ping Xia (#351)
6-3 6-1 6-2

1993-10-11

Tokyo Indoor - Carpet - R64

Jamie Morgan (#54)
def
Yasufumi Yamamoto (#334)
6-4 6-3

1993-09-27

Kuala Lumpur-2 - Hard - R32

Michael Chang (#8)
def
Yasufumi Yamamoto (#340)
7-5 6-2

1993-04-30

Davis Cup G1 SF: JPN vs NZL - Carpet - RR

Yasufumi Yamamoto (#481)
def
Kelly Evernden (#260)
6-7(5) 6-4 1-0 RET

1993-04-30

Davis Cup G1 SF: JPN vs NZL - Carpet - RR

Brett Steven (#54)
def
Yasufumi Yamamoto (#481)
6-4 6-2 7-6(4)

1993-04-05

Tokyo Outdoor - Hard - R64

Hideki Kaneko (#360)
def
Yasufumi Yamamoto (#528)
6-7(7) 7-6(4) 6-3

1993-03-29

Osaka - Hard - R32

Chuck Adams (#90)
def
Yasufumi Yamamoto (#414)
4-6 6-4 6-3

1993-03-26

Davis Cup G1 QF: HKG vs JPN - Hard - RR

Yasufumi Yamamoto (#414)
def
Colin Grant (#)
6-2 6-1

1993-03-26

Davis Cup G1 QF: HKG vs JPN - Hard - RR

Yasufumi Yamamoto (#414)
def
Michael Walker (#788)
6-1 6-3 6-2

1992-10-12

Tokyo Indoor - Carpet - R64

Claudio Mezzadri (#103)
def
Yasufumi Yamamoto (#432)
6-3 3-6 6-3

1992-03-27

Davis Cup G1 PO: JPN vs CHN - Hard - RR

Yasufumi Yamamoto (#551)
def
Bing Pan (#608)
7-6(1) 6-7(4) 2-6 7-6(3) 6-2

1992-03-27

Davis Cup G1 PO: JPN vs CHN - Hard - RR

Jia Ping Xia (#510)
def
Yasufumi Yamamoto (#551)
6-3 2-6 6-3 6-4

1992-01-31

Davis Cup G1 PO: PHI vs JPN - Hard - RR

Roland So (#702)
def
Yasufumi Yamamoto (#570)
6-4 1-6 2-6 6-3 6-4

1992-01-31

Davis Cup G1 PO: PHI vs JPN - Hard - RR

Felix Barrientos (#262)
def
Yasufumi Yamamoto (#570)
3-6 6-1 7-5 6-4

1991-10-07

Tokyo Indoor - Carpet - R64

Robbie Weiss (#194)
def
Yasufumi Yamamoto (#624)
6-2 6-3

1991-04-08

Tokyo Outdoor - Hard - R64

Alexander Mronz (#73)
def
Yasufumi Yamamoto (#671)
6-1 6-2