It was quick, but it definitely wasn't easy for K-1 heavyweight champion Badr Hari.

The Moroccan scored a one-punch, 19-second knockout over Domagoj Ostojic tonight in the K-1 World Grand Prix in Hawai'i but took a blow that almost knocked him out.

Hari and Ostojic traded jarring lefts to start the bout with Ostojic falling on his back and Hari stumbling to the ropes.

The 6-foot-6, 203-pound Hari managed to stay on his feet while the much heavier Ostojic, of Croatia, was counted out. The fight was not a title match, so Hari (10-3, 6 KOs) would have kept his title, regardless of the outcome.

Turkey's Ghokan Saki also stopped South Korea's Randy Kim in the second round to win an eight-man heavyweight tournament and claim the K-1 USA Grand Prix title. With the victory, Saki secured a spot in the K-1 Final 16 event in South Korea on Sept. 27.

The 6-foot, 214-pound Saki slowed Kim with several leg kicks and then landed a left hook to the head, knocking out the Korean. Saki also dropped Kim earlier in the round with a combination, capped by a left hook to the head.

Saki earned his way to the championship fight by stopping Deutsch Puu and Rick Cheek. Against Cheek, Saki ended the fight with a left uppercut to the belly. About a minute earlier, he dropped Cheek with a leg kick.

Kim ate up Wesley "Cabbage" Correira like a jar of kimchi to earn a spot in the finals. Kim, a reserve, stopped Correira, of Hilo, Hawaii, in the second round of the semifinals.

The 6-foot-5, 243-pound Kim, who earlier scored a second-round knockout of Vilitonu Fonokalafi in a reserve fight, was a last-minute injury replacement for "Mighty Mo" Siliga.

Kim controlled Correira in the first round, landing a flurry of punches and pushing his opponent into a corner.

In the second round, Kim's leg kicks dropped and hobbled Correira, who switched to a southpaw stance because of the punishment he took to his left leg. Kim then chopped his heavily-tatooed opponent down with a kick to the left shin that left Correira grimacing in pain.

In an earlier Super Fight, Min Soo Kim earned a unanimous decision over local fan favorite Scott Junk, of Kailua, Hawaii. The 254-pound South Korean dropped the 275-pound Junk twice in the first round with hard punching.

Junk landed a couple of leg kicks in the second round but seemed to have run out of gas in the final round.

The event was held at Stan Sheriff Center, and was former sumo grand champion Akebono's debut as a fight promoter.

Akebono, who was born and raised on O'ahu as Chad Rowan, became the first foreign wrestler to reach sumo's highest rank of yokozuna before retiring in 2001 and briefly serving as a sumo trainer. He took up a career in K-1 in 2003 but managed only one win in 13 bouts.

K-1 combines elements of kickboxing, karate and taekwondo, with most fights ending in knockout. There is no grappling or wrestling allowed in K-1.