Seiji Yokoyama boxer
- bouts
- 47
- won
- 23
- lost
- 15
- draw
- 8
- Status
- inactive
- Division
- flyweight
- Debut
- 1946-07-09
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1928-12-05
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1952-04-21 | Yasushi Sasaki | LWWDWW | LOST Points |
|
| 1951-03-17 | Shichiro Matsubara | L | DRAW Points |
|
| 1950-12-23 | Takahisa Horiguchi | DLWDWW | LOST Points |
|
| 1950-11-23 | Yukio Takahashi | LLL | LOST Points |
|
| 1950-09-08 | Speedy Akira | WWLWWW | LOST Points |
|
| 1950-04-23 | Yoichiro Hanada | DWWWWD | LOST Points |
|
| 1950-03-20 | Hideo Kijima | WWWLLW | LOST Points |
|
| 1950-02-04 | Yoichiro Hanada | DLLDW | LOST |
|
| 1949-12-27 | Noboru Kushida | WLWWWW | LOST Points |
|
| 1949-12-25 | Isamu Yasuda | WLL | WIN Points |
|
| 1949-11-25 | Kyoichi Muto | WWLLWL | LOST Points |
|
| 1949-09-10 | Katsumi Kobayashi | LDLDLW | NC No Contest |
|
| 1949-09-05 | Yoichiro Hanada | WWWWWD | DRAW Points |
|
| 1949-07-13 | Tomoharu Yamada | debut | DRAW Points |
|
| 1949-05-27 | Hideo Kijima | LDLLLW | LOST Points |
|
| 1949-05-11 | Saburo Obata | LLLLDW | DRAW Points |
|
| 1949-04-21 | Kyoichi Muto | WWLWWW | WIN Points |
|
| 1949-04-07 | Saburo Obata | LLLLLD | LOST Points |
|
| 1949-03-19 | Speedy Akira | WWWWLW | WIN KO |
|
| 1949-02-26 | Isamu Yasuda | W | WIN Points |
|
| 1949-02-12 | Hachiro Isono | LDWL | WIN |
|
| 1949-02-04 | Kazuo Suzuki | LLL | WIN KO |
|
| 1949-01-26 | Joe Camiro | LL | WIN |
|
| 1949-01-04 | Iwao Yoshihashi | L | WIN Points |
|
| 1948-11-25 | Saburo Obata | LLLLL | DRAW Points |
|
| 1948-11-16 | Kyoichi Muto | WDWWWW | LOST Points |
|
| 1948-09-10 | Kyoichi Muto | WLWWDW | LOST Technical knockout |
|
| 1948-08-20 | Saburo Obata | LLLL | WIN Points |
|
| 1948-07-31 | Shu Senba | debut | WIN Corner retirement |
|
| 1948-07-03 | Kazumi Ueda | WWWLWW | WIN Points |
|
| 1948-06-24 | Takahisa Horiguchi | WWWWLW | DRAW Points |
|
| 1948-06-12 | Yasunari Miyajima | LL | Nishinomiya | WIN Points |
| 1948-05-22 | Keizo Yasui | debut | DRAW Points |
|
| 1948-04-20 | Yasunari Miyajima | L | WIN Points |
|
| 1948-03-17 | Spider Yoshikawa | L | WIN Points |
|
| 1948-02-27 | Iwao Ooka | debut | WIN Points |
|
| 1948-02-14 | Taiji Sakamoto | L | WIN Points |
|
| 1948-02-07 | Eiyu Iwamura | debut | WIN Points |
|
| 1948-01-30 | Hitoshi Nishimura | debut | WIN Points |
|
| 1948-01-02 | Katsumasa Mori | debut | WIN Points |
|
| 1947-11-08 | Shigetaro Yokota | debut | WIN Technical knockout |
|
| 1947-10-31 | Hachiro Isono | L | DRAW Points |
|
| 1947-10-14 | Kimio Akahori | L | WIN Points |
|
| 1947-10-04 | Susumu Enomoto | L | WIN Points |
|
| 1947-09-26 | Tokichi Nagano | debut | WIN Points |
|
| 1946-08-03 | Yoshio Furukawa | debut | LOST KO |
|
| 1946-07-09 | Choju Matsumoto | debut | LOST Points |