| 31 Dec | NYEK: New Year's Eve Knockout 1 | | |
| 19 Dec | WEF 1: World Extreme Fighting 1 | | |
| 19 Dec | Pancrase: Advance 12 | Tokyo Bay NK Hall, Chiba, Japan | |
| 15 Dec | YVT: Ybor Vale Tudo | | |
| 8 Dec | WCNHBC: West Coast NHB Championships 1 | | |
| 8 Dec | CC 1: Cage Combat 1 | | |
| 27 Nov | Shooto: Las Grandes Viajes 6 | Korakuen Hall, Tokyo, Japan | |
| 21 Nov | EC 22: Extreme Challenge 22 | | |
| 13 Nov | Gladiators 1: Gladiators 1 | | |
| 7 Nov | HOOKnSHOOT: Eruption | SOLDIERS AND SAILORS MEMORIAL COLISEUM, Evansville, IN | |
| 7 Nov | PRW: Power Ring Warriors | | |
| 6 Nov | SFC: Submission Fighting Championships 4 | | |
| 1 Nov | CC 5: Chicago Challenge 5 | | |
| 28 Oct | WVF: Jacksonville Vale Tudo 1 | | |
| 25 Oct | Vale Tudo Japan 1998 | Tokyo Bay NK Hall, Chiba, Japan | |
| 24 Oct | Rings Holland: The Thialf Explosion | THIALF STADION, VOORBURG, HOLLAND | |
| 17 Oct | EC 21: Extreme Challenge 21 | | |
| 17 Oct | UFC 17.5: Ultimate Brazil | Portuguesa Gymnasium, Sao Paulo, Brazil | |
| 11 Oct | PRIDE 4 | Tokyo Dome, Tokyo, Japan | |
| 28 Sep | MFC 2: Midwest Fighting 2 | | |
| 28 Sep | FFF 3: Fearless Freestyle Fighting 3 | | |
| 19 Sep | UFCF - Night of Champions | Edmonds Community College, Edmonds, WA | |
| 19 Sep | SB 9: SuperBrawl 9 | | |
| 4 Sep | RIR: Rumble in Reno | | |
| 23 Aug | IVC 6: The Challenge | | |
| 23 Aug | IVC 7: The New Champions | | |
| 22 Aug | EC 20: Extreme Challenge 20 | | |
| 14 Aug | HOOKnSHOOT: Quest | SOLDIERS AND SAILORS MEMORIAL COLISEUM, Evansville, IN | |
| 8 Aug | BFC: Brazilian Freestyle Circuit 2 | | |
| 4 Aug | SB 8: SuperBrawl 8 | Blaisdell Center, Honolulu, HI | |
| 2 Aug | UWC: Ultimate Warrior Challenge | | |
| 29 Jul | Shooto: Las Grandes Viajes 4 | Korakuen Hall, Tokyo, Japan | |
| 28 Jul | MFC 1: Midwest Fighting 1 | | |
| 28 Jun | NG 5: Neutral Grounds 5 | | |
| 27 Jun | MS 1: Midwest Shootfighting 1 | | |
| 27 Jun | Rings: Fourth Fighting Integration | | |
| 24 Jun | PRIDE 3 | NIPPON GAISHI HALL, Nagoya, Japan | |
| 20 Jun | USWF 9: Unified Shoot Wrestling Federation 9 | | |
| 20 Jun | IFC 8: Showdown at Shooting Star | Shooting Star Casino, Mahnomen, MN | |
| 12 Jun | HOOKnSHOOT: N-Vision | SOLDIERS AND SAILORS MEMORIAL COLISEUM, Evansville, IN | |
| 12 Jun | WSW: World Shoot Wrestling 1 | PASADENA FAIR GROUNDS, Pasadena, TX | |
| 7 Jun | Rings Holland: Who's The Boss | VECHTSEBANEN SPORTS HALL, Utrecht | |
| 6 Jun | CJF: Campos de Jordao Freestyle | | |
| 30 May | IFC 7: Cage Combat | KAHNAWAKE SPORTS COMPLEX, Montreal, PQ, Canada | |
| 30 May | CC 4: Chicago Challenge 4 | | |
| 29 May | Rings: Third Fighting Integration | | |
| 23 May | IAFC: Pankration European Championship 1998 | | |
| 18 May | Desafio - Freestyle de Campos | | |
| 17 May | UB - Ultimate Battle | | |
| 16 May | UFC 17: Redemption | Mobile Civic Center, Mobile, AL | |
| 13 May | Shooto: Las Grandes Viajes 3 | Korakuen Hall, Tokyo, Japan | |
| 9 May | FFF 2: Fearless Freestyle Fighting 2 | | |
| 26 Apr | IVC 5: The Warriors | | |
| 25 Apr | JKD: Challenge 2 | Madonna High School, Chicago, IL | |
| 12 Apr | IMA: KO Power Tournament | SPORT HALL ZUID, Amsterdam, Netherlands | |
| 11 Apr | EC 17: Extreme Challenge 17 | | |
| 1 Apr | VATV: Vengeance at the Vanderbilt 3 | THE VANDERBILT, PLAINVIEW, NY | |
| 26 Mar | EC 16: Extreme Challenge 16 | | |
| 16 Mar | ISC 1998: International Super Challenge 1998 | Sport Palace, Rostov-on-Don, Russia | |
| 15 Mar | PRIDE 2 | Yokohama Arena, Yokohama, Japan | |
| 14 Mar | UFCF: Night of Champions | | |
| 14 Mar | UFC 16: Battle in the Bayou | Pontchartrain Center, New Orleans, LA | |
| 7 Mar | NOTS 1: Night of the Samurai 1 | San Luis Gonzaga Gym, San Jose, Costa Rica | |
| 5 Mar | PRIDE 2 | | |
| 1 Mar | Shooto: Las Grandes Viajes 2 | Korakuen Hall, Tokyo, Japan | |
| 8 Feb | Rings Holland: The King of Rings | SPORT HALL ZUID, Amsterdam, Netherlands | |
| 7 Feb | IVC 4: The Battle | | |
| 21 Jan | Rings: Battle Dimensions Tournament 1997 Final | | |
| 16 Jan | WPC: World Pankration Championships 2 | | |
| 16 Jan | EC 13: Extreme Challenge 13 | | |
| 1 Jan | JKD: Challenge 1 | Madonna High School, Chicago, IL | |
| 1 Jan | Israel Fighting Championship: Israel vs. Canada | | |