Hiroki Ioka (33-8-1, 17) was born in Sakai, Osaka, Japan on January 8, 1969. At the age of 17 years on January 23, 1986, he made his professional boxing debut against Yukio Yorimochi, winning the fight via 3rd-round KO.
On his 9th career fight at 18 years old, Ioka became a strawweight world champion on October 18, 1987 after defeating Mai Thomburifarm via 12-round unanimous decision to win the WBC title.
He then went on to become world champion at the light-flyweight weight class as well, winning the WBA title against Yuh Myung-Woo via 12-round split decision on December 17, 1991.
Ioka's last fight was a 5th-round TKO loss to Masamori Tokuyama at age 29 on December 19, 1998. He retired from the sport of boxing following this loss.
Some of Hiroki Ioka's best fights have been against Yuh Myung-Woo and Kyung-Yung Lee.
Ioka has 8 losses on his boxing record.
| # | Date | Opponent | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|
42  | Dec 19, 1998 29 years, 11 months 33-8-1 (17) | 24 years, 3 months 15-2-1 (3) | 5 | TKO | LOSS | |
41 | Sep 3, 1998 29 years, 7 months 33-7-1 (17) | Jerry Pahayahay | 10 | PTS | WIN | |
40 | Apr 29, 1998 29 years, 3 months 32-7-1 (17) | Satoshi Iida | SFL | 12 | MD | LOSS For WBA |
39 | Feb 3, 1998 29 years 32-6-1 (17) | Hidekazu Sakata | 9 | TKO | WIN | |
38 | Nov 18, 1997 28 years, 10 months 31-6-1 (16) | Pinoy Montejo | 10 | UD | WIN | |
37 | Feb 25, 1997 28 years, 1 months 30-6-1 (16) | José Bonilla | FL | 7 | TKO | LOSS For WBA |
36 | Oct 18, 1996 27 years, 9 months 30-5-1 (16) | Hiroki Shinozaki | 4 | KO | WIN | |
35 | Jun 3, 1996 27 years, 4 months 29-5-1 (15) | Ricky Sales | 12 | PTS | WIN | |
34 | Mar 31, 1996 27 years, 2 months 28-5-1 (15) | Joel Nice | 2 | KO | WIN | |
33 | Oct 17, 1995 26 years, 9 months 27-5-1 (14) | Saen Sor Ploenchit | FL | 10 | TKO | LOSS For WBA |
32 | May 9, 1995 26 years, 4 months 27-4-1 (14) | Kim Dong-Soo | 4 | TKO | WIN | |
31 | Jan 10, 1995 26 years 26-4-1 (13) | Lee Escobido | 10 | UD | WIN | |
30 | Jun 27, 1994 25 years, 5 months 25-4-1 (13) | Triffon Torralba | 4 | KO | WIN | |
29 | Apr 13, 1994 25 years, 3 months 24-4-1 (12) | David Franco | 5 | KO | WIN | |
28 | Nov 8, 1993 24 years, 10 months 23-4-1 (11) | John Medina | 6 | TKO | WIN | |
27 | Jun 21, 1993 24 years, 5 months 22-4-1 (10) | David Griman | FL | 8 | TKO | LOSS For WBA |
26 | Jan 29, 1993 24 years 22-3-1 (10) | Ronnie Romero | 2 | KO | WIN | |
25  | Nov 18, 1992 23 years, 10 months 21-3-1 (9) | 28 years, 10 months 36-1 (14) | LFL | 12 | MD | LOSS Lost WBA |
24 | Jun 15, 1992 23 years, 5 months 21-2-1 (9) | Kim Bong-Jun | LFL | 12 | UD | WIN Defended WBA |
23 | Mar 31, 1992 23 years, 2 months 20-2-1 (9) | Noel Tunacao | LFL | 12 | UD | WIN Defended WBA |
22 | Dec 17, 1991 22 years, 11 months 19-2-1 (9) | 27 years, 11 months 36-0 (14) | LFL | 12 | SD | WIN Won WBA |
21 | Jun 27, 1991 22 years, 5 months 18-2-1 (9) | Katsumi Komiyama | 5 | KO | WIN | |
20 | Apr 5, 1991 22 years, 2 months 17-2-1 (8) | Kenji Tezuka | 10 | PTS | WIN | |
19 | Jan 17, 1991 22 years 16-2-1 (8) | Max Forrosuelo | 10 | UD | WIN | |
18 | Nov 24, 1990 21 years, 10 months 15-2-1 (8) | Jaime Aliguin | 10 | PTS | WIN | |
17 | Jul 16, 1990 21 years, 6 months 14-2-1 (8) | Salagchit Sorchitphatana | 10 | UD | WIN | |
16 | Apr 9, 1990 21 years, 3 months 13-2-1 (8) | John Ireng | 9 | KO | WIN | |
15 | Jan 29, 1990 21 years 12-2-1 (7) | Udin Barahudin | 10 | UD | WIN | |
14 | Jun 10, 1989 20 years, 5 months 11-2-1 (7) | Napa Kiatwanchai | ST | 11 | TKO | LOSS For WBC |
13 | Feb 8, 1989 20 years, 1 months 11-1-1 (7) | Hidekazu Kakehashi | 2 | KO | WIN | |
12 | Nov 13, 1988 19 years, 10 months 10-1-1 (6) | Napa Kiatwanchai | ST | 12 | MD | LOSS Lost WBC |
11 | Jun 5, 1988 19 years, 4 months 10-0-1 (6) | Napa Kiatwanchai | ST | 12 | PTS | DRAW Defended WBC |
10  | Jan 31, 1988 19 years 10-0 (6) | 21 years, 1 months 11-0 (4) | ST | 12 | TKO | WIN Defended WBC |
9 | Oct 18, 1987 18 years, 9 months 9-0 (5) | Mai Thomburifarm | ST | 12 | UD | WIN Won WBC |
8 | Jul 8, 1987 18 years, 6 months 8-0 (5) | Kenji Ono | ST | 10 | PTS | WIN |
7 | Apr 28, 1987 18 years, 3 months 7-0 (5) | Akira Kiyono | 8 | PTS | WIN | |
6 | Feb 22, 1987 18 years, 1 months 6-0 (5) | Hisashi Nakatomi | 1 | TKO | WIN | |
5 | Oct 7, 1986 17 years, 8 months 5-0 (4) | Dash Higashiho | 2 | TKO | WIN | |
4 | Sep 13, 1986 17 years, 8 months 4-0 (3) | Masao Kasai | 4 | PTS | WIN | |
3 | Mar 5, 1986 17 years, 1 months 3-0 (3) | Osamu Uemoto | 2 | KO | WIN | |
2 | Feb 10, 1986 17 years, 1 months 2-0 (2) | Hiroshi Udo | 2 | KO | WIN | |
1 | Jan 23, 1986 17 years 1-0 (1) | Yukio Yorimochi | 3 | KO | WIN |
