Viet Anh Do Full Fights: 100% KO Rate Before ONE Fight Night 46
Before Viet Anh Do makes his U.S. primetime debut at ONE Fight Night 46, relive the knockout run that carried him from ONE Warrior Series prospect to the global ONE Championship roster. The Vietnamese-Kiwi flyweight enters his next fight unbeaten at 6-0, with every professional victory coming by KO or TKO.
This full-fight collection covers Do’s five victories under the ONE banner: two early appearances in ONE Warrior Series, a destructive return at ONE Friday Fights, and the performance that finally earned him a six-figure main-roster contract.
Viet Anh Do’s ONE Warrior Series knockouts
Do first appeared for ONE in 2019 at ONE Warrior Series 6 against Tae Ho Park. The fight lasted only 48 seconds. After absorbing some early offense, Do fired back with a compact combination and finished Park with punches for a first-round TKO.
Less than six months later, he returned at ONE Warrior Series 9 against Govind Singh. Do again ended matters in the opening round, knocking Singh out at 2:51. Two ONE appearances had produced two knockouts, but his path toward the main roster would take considerably longer than those performances suggested.
A destructive return at ONE Friday Fights
Do did not compete for ONE again until November 2025, nearly six years after the Singh knockout. His return against Ryo Hirayama at ONE Friday Fights 133 quickly reminded viewers what had made him interesting in the first place.
Hirayama was stopped at 2:48 of the first round, giving Do another TKO and extending his perfect run inside ONE. There was no long reintroduction period or cautious attempt to rebuild momentum. Do came back throwing with the same finishing intent he had shown in 2019.
His next appearance was even shorter. At ONE Friday Fights 140 in January 2026, Do faced Jean Claude Saclag. The Filipino fighter lasted just 59 seconds before Do forced the TKO, giving the Auckland-based fighter his fourth consecutive knockout under the ONE umbrella.
Kyungjung Kim and the $100,000 ONE contract
The most important fight of Do’s ONE run came against Kyungjung Kim at ONE Friday Fights 155 on May 22, 2026.
Kim made Do work longer than his previous two ONE Friday Fights opponents, but the result was familiar. Do stopped the South Korean by TKO at 2:17 of the second round, moving to 5-0 in ONE Championship competition.
This time, the finish brought more than another win. ONE awarded Do a US$100,000 contract to join its global roster, completing a journey that had started with his first Warrior Series appearance seven years earlier.
It also showed why the knockout statistic is more useful than simple highlight-reel hype. Do’s five ONE victories have all ended by KO or TKO, but they have not all looked identical. He has finished with combinations, counters and sustained pressure, and his recent performances have shown that his power remains dangerous even when an opponent gets beyond the opening minutes.
Viet Anh Do vs. Davi Brandao at ONE Fight Night 46
The reward is an immediate test against another unbeaten finisher. Do faces Davi Brandao in the Viet Anh Do vs. Davi Brandao flyweight MMA fight at ONE Fight Night 46 at Lumpinee Stadium in Bangkok.
Brandao enters his ONE debut at 6-0, giving the matchup 12 combined professional victories without a defeat. There is another statistic that makes the pairing especially interesting: neither fighter has needed the judges to win. Do has built his record entirely through knockouts and TKOs, while Brandao has produced both knockouts and submissions.
That makes this full-fight collection particularly timely. Do is no longer simply an undefeated prospect producing quick finishes on ONE Friday Fights. The win over Kim earned him a place on the global roster, and Brandao represents the first chance to show how far that finishing game can carry him on a ONE Fight Night card.
Five ONE fights have produced five stoppages. The next one puts Viet Anh Do’s unbeaten record, 100% finish rate and growing reputation directly against another undefeated fighter who has never gone to a decision either.