- NWA World Heavyweight title defeating Dan Severn (March 14, 1999);
- NWA World Heavyweight title defeating Gary Steele (October 2, 1999);
- NWA (Zero One) Intercontinental Tag Titles w/Shinya Hashimoto defeating John Heidenreich & Nathan Jones (October 26, 2002);
- NWA (Zero One) Intercontinental Tag Titles w/Shinya Hashimoto defeating Tom Howard & Matt Ghaffari (April 29, 2003);
- Zero One Max United States Heavyweight title (as Hulk Ogan) defeating The Predator (August 10, 2003);
- Naoya Ogawa won many Judo tournaments in his younger days..
- ~~~Naoya Ogawa became the youngest winner ever in the World Judo Championships..
- ~~~Naoya Ogawa’s greatest judo accomplishment came when he competed in the 1992 Barcelona Olympic Games..
- ~~~~Naoya Ogawa won a silver medal in the 95KG weight class..
- March 1997: Naoya was recruited by Antonio Inoki and sent to train with Satoru Sayama..
- April 12, 1997: Naoya Ogawa (replaced Ken Shamrock) and defeated IWGP HW Champion Shinya Hashimoto in a non-title match..
- May 3, 1997: Shinya Hashimoto defeated Naoya Ogawa to retain the IWGP Heavyweight title..
- 1998: Naoya Ogawa became the top star of Inoki’s UFO movement..
- ~~~October 24, 1998: Naoya Ogawa TKO’d Don Frye on the UFO debut show..
- January 4, 1999: Shinya Hashimoto wrestled Naoya Ogawa to a no contest at the Tokyo Dome..
- Naoya Ogawa ventured into the popular mixed martial arts (MMA) fighting group, PRIDE..
- Naoya Ogawa defeated Gary Goodridge in his first fight, then later downing Masaaki Satake..
- March 14, 1999: Naoya Ogawa defeated Dan Severn for the NWA World Heavyweight title in Yokohama, Japan..
- September 25, 1999: Gary Steele defeated Naoya Ogowa for the NWA World Heavyweight title in Charlotte, NC..
- October 2, 1999: Noaya Ogawa defeated Gary Steele to recapture the NWA World Heavyweight title but vacated it on July 2, 2000..
- October 11, 1999: Naoya Ogawa defeated Shinya Hashimoto by TKO..
- April 7, 2000: Naoya Ogawa defeated Shinya Hashimoto again by KO sending Hashimoto into temporary retirement..
- Naoya Ogawa joined Shinya Hashimoto’s Zero-One promotion and formed a tag team with Shinya calling themselves OH Gun..
- January 4, 2004 – Z1 Hustle-1: Bill Goldberg beat Naoya Ogawa when heel-referee suddenly recovered as Goldberg went for pin..
- March 7, 2004 – Z1 Hustle-2: Matt Ghaffari/Mark Coleman/Kevin Randleman/Dusty Rhodes Jr/Giant Silva/Dan Bobish b Naoya Ogawa..
- May 8, 2004 – Z1 Hustle-3: Naoya Ogawa & Shin’ya Hashimoto defeated The Outsiders (Kevin Nash & Scott Hall)..
- July 25, 2004 – Z1 Hustle-4: Naoya Ogawa & Riki Choshu defeated An Joe (Yoji Anjoh) & Dan “The Buffalo” Bobish..
- November 13, 2004–New Japan: Toshiaki Kawada & Naoya Ogawa beat Hiroyoshi Tenzan & Hiroshi Tanahashi..