Here is a list of Hioki's best fights. For a list of Hioki's losses, refer to "Hatsu Hioki Losses".
On October 29, 2011 Hatsu Hioki faced off against George Roop in a featherweight bout at age 28. He was coming in with a record of 25-4-2 (14), and Roop was 29 years old and with a record of 12-7-1 (7). Hioki won the fight via 3-round split decision.
On March 28, 2008 Hatsu Hioki faced off against Baret Yoshida in a featherweight bout at age 24. He was coming in with a record of 15-3-1 (8), and Yoshida was 32 years old and with a record of 5-5-1 (3). Hioki stopped Baret Yoshida via TKO.
On February 26, 2012 Hatsu Hioki faced off against Bart Palaszewski in a featherweight bout at age 28. He was coming in with a record of 26-4-2 (14), and Palaszewski was 28 years old and with a record of 36-14 (28). Hioki won the fight via 3-round unanimous decision.
On November 29, 2008 Hatsu Hioki faced off against Rumina Sato in a featherweight bout at age 25. He was coming in with a record of 17-3-2 (10), and Sato was 34 years old and with a record of 24-12-2 (17). Hioki stopped Rumina Sato via TKO.
On July 3, 2005 Hatsu Hioki faced off against Hideki Kadowaki in a featherweight bout at age 21. He was coming in with a record of 7-1 (5), and Kadowaki was 29 years old and with a record of 9-5-1 (5). Hioki stopped Hideki Kadowaki via submission.
On January 26, 2008 Hatsu Hioki faced off against Katsuya Toida in a featherweight bout at age 24. He was coming in with a record of 14-3-1 (7), and Toida was 31 years old and with a record of 10-7-3 (3). Hioki stopped Katsuya Toida via submission.
On May 30, 2010 Hatsu Hioki fought Takeshi Inoue in a featherweight title fight for Inoue's Shooto Championship title. Hioki was 26 years old and with a record of 21-4-2 (12), and Inoue was 30 years old and with a record of 6-9 (4). Hioki won the fight via 3-round split decision and is crowned the new featherweight world champion.
On January 31, 2016 Hatsu Hioki faced off against Kyosuke Yokoyama in a featherweight bout at age 32. He was coming in with a record of 28-9-2 (15). Hioki stopped Kyosuke Yokoyama via submission.
On May 2, 2009 Hatsu Hioki faced off against Ronnie Mann in a featherweight bout at age 25. He was coming in with a record of 19-3-2 (12), and Mann was 22 years old and with a record of 16-2-1 (13). Hioki stopped Ronnie Mann via submission.
On August 26, 2006 Hatsu Hioki faced off against Jeff Curran in a featherweight bout at age 23. He was coming in with a record of 10-1-1 (5), and Curran was 28 years old and with a record of 25-7-1 (18). Hioki won the fight via 2-round unanimous decision.