Masao Ohba (35-2-1, 16) was born in Sumida City, Tokyo, Japan on October 21, 1949. At the age of 17 years on November 7, 1966, he made his professional boxing debut against Kazuyoshi Watanabe, winning the fight via 1st-round KO.
On his 29th career fight at 21 years old, Ohba became a flyweight world champion on October 22, 1970 after defeating Berkrerk Chartvanchai via 13th-round KO to win the WBA title.
Ohba's last fight was a flyweight (WBA) world-title defense against Chartchai Chionoi on January 2, 1973. He stopped Chionoi via KO in the 12th round, successfully defending the title. He was on a 19-fight winning streak by his last fight.
Ohba has 2 losses on his boxing record. For details about these losses refer to "Masao Ohba Losses".
| # | Date | Opponent | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|
38 | Jan 2, 1973 23 years, 2 months 35-2-1 (16) | Chartchai Chionoi | FL | 12 | KO | Win Defended WBA |
37 | Sep 26, 1972 22 years, 11 months 34-2-1 (15) | Natalio Jimenez | 5 | KO | Win | |
36 | Jun 20, 1972 22 years, 7 months 33-2-1 (14) | Orlando Amores | FL | 5 | KO | Win Defended WBA |
35 | Mar 4, 1972 22 years, 4 months 32-2-1 (13) | Susumu Hanagata | FL | 15 | MD | Win Defended WBA |
34 | Oct 23, 1971 22 years 31-2-1 (13) | Fernando Cabanela | FL | 15 | UD | Win Defended WBA |
33 | Aug 19, 1971 21 years, 9 months 30-2-1 (13) | Tony Moreno | 10 | UD | Win | |
32 | Jun 18, 1971 21 years, 7 months 29-2-1 (13) | Rocky Garcia | 9 | TKO | Win | |
31 | Apr 1, 1971 21 years, 5 months 28-2-1 (12) | Betulio González | FL | 15 | UD | Win Defended WBA |
30 | Jan 21, 1971 21 years, 3 months 27-2-1 (12) | Fritz Chervet | 8 | TKO | Win | |
29 | Oct 22, 1970 21 years 26-2-1 (11) | Berkrerk Chartvanchai | FL | 13 | KO | Win Won WBA |
28 | Jun 21, 1970 20 years, 8 months 25-2-1 (10) | Baby Corona | 8 | KO | Win | |
27 | Mar 1, 1970 20 years, 4 months 24-2-1 (9) | Rudy Billones | 10 | UD | Win | |
26 | Dec 14, 1969 20 years, 1 months 23-2-1 (9) | Bernabe Villacampo | 10 | UD | Win | |
25 | Aug 18, 1969 19 years, 9 months 22-2-1 (9) | Takeshi Nakamura | 10 | UD | Win | |
24 | Jun 23, 1969 19 years, 8 months 21-2-1 (9) | Sakdinoi ETO | 10 | PTS | Win | |
23 | May 5, 1969 19 years, 6 months 20-2-1 (9) | Yoshiaki Matsumoto | 10 | UD | Win | |
22 | Mar 3, 1969 19 years, 4 months 19-2-1 (9) | Speedy Hayase | 10 | PTS | Win | |
21 | Dec 23, 1968 19 years, 2 months 18-2-1 (9) | Shuta Yoshino | 10 | PTS | Win | |
20 | Oct 28, 1968 19 years 17-2-1 (9) | Yuzo Narumi | 10 | PTS | Win | |
19 | Sep 2, 1968 18 years, 10 months 16-2-1 (9) | Susumu Hanagata | 10 | UD | Loss | |
18 | Aug 5, 1968 18 years, 9 months 16-1-1 (9) | Shoji Wada | 8 | PTS | Win | |
17 | Jun 17, 1968 18 years, 7 months 15-1-1 (9) | Shoichi Fujimaki | 3 | KO | Win | |
16 | May 13, 1968 18 years, 6 months 14-1-1 (8) | Takeo Tamaya | 4 | TKO | Win | |
15 | Mar 11, 1968 18 years, 4 months 13-1-1 (7) | Shoji Wada | 6 | PTS | Win | |
14 | Jan 8, 1968 18 years, 2 months 12-1-1 (7) | Samurai Hagiri | 6 | PTS | Win | |
13 | Dec 14, 1967 18 years, 1 months 11-1-1 (7) | Shunichi Minagawa | 4 | PTS | Win | |
12 | Nov 13, 1967 18 years 10-1-1 (7) | Toshimi Yasuda | 4 | KO | Win | |
11 | Oct 13, 1967 17 years, 11 months 9-1-1 (6) | Snappy Asano | 4 | PTS | Draw | |
10 | Sep 22, 1967 17 years, 11 months 9-1 (6) | Masao Ohara | 2 | RTD | Win | |
9 | Sep 3, 1967 17 years, 10 months 8-1 (5) | Yasuo Jo | 4 | PTS | Win | |
8 | Jul 31, 1967 17 years, 9 months 7-1 (5) | Tadashi Nishikawa | 1 | KO | Win | |
7 | Jun 16, 1967 17 years, 7 months 6-1 (4) | Masakazu Tani | 4 | UD | Loss | |
6 | Apr 30, 1967 17 years, 6 months 6-0 (4) | Kunio Shimada | 4 | PTS | Win | |
5 | Mar 27, 1967 17 years, 5 months 5-0 (4) | Kenji Otsuka | 4 | PTS | Win | |
4 | Feb 20, 1967 17 years, 3 months 4-0 (4) | Sumio Arai | 3 | RTD | Win | |
3 | Jan 2, 1967 17 years, 2 months 3-0 (3) | Ryoichi Takahashi | 2 | KO | Win | |
2 | Dec 12, 1966 17 years, 1 months 2-0 (2) | Joji Kuroki | 3 | KO | Win | |
1 | Nov 7, 1966 17 years 1-0 (1) | Kazuyoshi Watanabe | 1 | KO | Win |
