ONE Championship on Prime Video 4 is slated for Saturday morning in Singapore, and on Thursday night, the 19 fighters on the bill took to the scale to weigh in, and undergo their customary pre-fight hydration tests.

The biggest miss came from welterweight MMA champion Kiamrian Abbasov, who failed his first attempt at hydration. He came back with three minutes of the 3-hour official window to spare and passed hydration, but missed weight, coming in at 186.5 pounds.

ONE on Prime Video 4: live updates, results, highlights in Singapore

Abbasov negotiated a catchweight with Christian Lee, who stepped on the scales first and made weight with no problems. Only Lee, ONE’s lightweight MMA champ, will be able to win the welterweight title on Saturday.

In the co-main event, strawweight Muay Thai champion Joseph Lasiri of Italy will also bid for a second title, challenging Thai flyweight champ Rodtang Jitmuangnon, after both made weight. Rodtang initially missed weight before returning later on.

There were other big misses. Both former bantamweight MMA champion Bibiano Fernandes and his opponent Stephen Loman failed to pass hydration, but agreed a 153.25 pound catchweight after eventually weighing in heavy.

Jonathan Haggerty also failed hydration for his bantamweight Muay Thai fight with Vladimir Kuzmin. Haggerty had previously been ruled out of his last two fights with medical issues during fight week, prompting a move up from flyweight. Kuzmin will be offered a 148-pound catchweight fight.

Here are the full results from Thursday’s weigh-ins and hydration tests.