MONTREAL – UFC flyweight champion Demetrious Johnson pulled off the proverbial buzzer-beater in his sixth title defense, submitting tough contender Kyoji Horiguchi with one second remaining in a five-round title bout.

Johnson (22-2-1 MMA, 10-1-1 UFC) set a record for the latest submission in UFC history and the latest finish in any UFC title bout when he forced Horiguchi (15-2 MMA, 4-1 UFC) to tap at the 4:59 mark of the fifth round.

“It’s very satisfying,” Johnson said afterward. “I wish I would have done it a lot sooner. The fight would have been over quicker, but it puts an exclamation point where I’m dominating the fight and I go ahead and finish it.”

The flyweight title bout headlined today’s UFC 186 event at Bell Centre in Montreal. It aired on pay-per-view following prelims on FOX Sports 1 and UFC Fight Pass.

Johnson, ranked No. 1 in USA TODAY Sports/MMAjunkie’s MMA flyweight rankings and No. 3 on the pound-for-pound list, was heavily favored to defend his title, but he encountered stiff resistance against an elusive Horiguchi, who came into the bout as the No. 7-ranked fighter in the 125-pound division with four consecutive UFC wins.

As the fight progressed, Johnson, 28, utilized his wrestling to wear out Horiguchi and set up the fight-ending submission when he quickly transitioned from a mounted crucifix to mount before securing the armbar.

“I was being lazy,” Johnson said. “(My coach) Matt (Hume) was yelling, ‘Armbar, armbar,’ so I was like, I better do what he says. I don’t want to get yelled at. So I went for it.”

The previous record was set by Frankie Edgar, who submitted Cub Swanson with four seconds left in a five-round fight.

Johnson’s six title defenses are the fourth longest streak among active UFC champions. “Mighty Mouse” also ties middleweight champion Chris Weidman for the longest active winning streak in the promotion’s octagon with eight fights.

Horiguchi’s best moment came in the second round when he landed a knee as Johnson shot for a takedown. A moment of aggressiveness also cost Johnson a pair of heavy hooks from the Japanese vet, a former Shooto champ who hadn’t lost since January 2012.

Otherwise, it was a unidirectional bout in favor of the champ, who kept the challenger out of step by mixing in punches and kicks with his takedown attempts.

“He’s very fast, and he had a karate style I’d never faced before,” Johnson said. “I didn’t want to be stupid and get knocked out. So I had 25 minutes, and I just took my time.”

Then, Johnson acted in the nick of time.

Up-to-the-minute UFC 186 results include:

• Demetrious Johnson def. Kyogi Horiguchi via submission (armbar) – Round 5, 4:59
• Quinton Jackson def. Fabio Maldonado via unanimous decision (29-28, 30-27, 30-27)
• Michael Bisping def. C.B. Dollaway via unanimous decision (29-28, 29-28, 29-28)
• John Makdessi def. Shane Campbell via TKO (punches) – Round 1, 4:53
• Thomas Almeida def. Yves Jabouin via TKO (punches) – Round 1, 4:18
• Patrick Cote def. Joe Riggs via unanimous decision (29-28, 29-28, 29-28)
• Alexis Davis def. Sarah Kaufman via submission (armbar) – Round 2, 1:52
• Chad Laprise def. Bryan Barberena via unanimous decision (29-28, 29-28, 30-27)
• Olivier Aubin-Mercier def. David Michaud via submission (rear-naked choke) – Round 3, 3:24
• Nordine Taleb def. Chris Clements via unanimous decision (30-27, 30-27, 30-27)
• Valerie Letourneau def. Jessica Rakoczy via unanimous decision (29-28, 29-28, 30-27)
• Randa Markos def. Aisling Daly via unanimous decision (30-27, 29-28, 29-28)

For complete coverage of UFC 186, check out the UFC Events section of the site.

(MMAjunkie’s Matt Erickson and Mike Bohn contributed to this report on site in Montreal.)