Umali continued to trail the Singaporean from a 38-pin lead down to 26 after the fourth game. Ong held on to the lead despite a poor 166 in the fifth game but recovered with 221 in the sixth and final game to claim top spot with 1318.
A second Malaysian youth, Muhammad Syarizol stormed home with 235 and 247 in the last two games to snatch second position with 1282 while Moon bounced back to end the squad in third position with 1272. Umali and a second Korean, Won Jonghyeok completed the top 5 with 1261 and 1255 respectively.
In the girl's division, 2018 Asian Intercity Championships Singles silver medallist, Cheang Lok In of Macau surprised a strong field, including 2016 World Youth Masters silver medallist, Amabel Chua of Singapore, to lead the squad with 1263.
Cheang led from start to finish where the 15-year-old rolled a stunning 260 in her opening game and never looked back since. Chua trailed the Macau youth for the first three games before her compatriot. Charmaine Chang took over second after the fourth game.