The 500-board simul world record that is currently held by Iranian GM Morteza Mahjoob could soon be broken by Pinoy GM Mark Paragua. Marlon Bernardino reports that the Mark will aim for 600 boards!
Taking on mostly 600 patzers at the same time, well, that's always an achievement, ain't it. Frankly, GM Paragua, the first Pinoy to reach "Super Grandmaster" status as Bernardino reminds us, ought to try and return to that elite company. Stick to serious chess, not this sideshow stuff.
But then again, when you've got a giant like a certain Wesley So casting such a shadow, what can you do?
By the way, go to the FIDE database, select Philippines, list by rating, then search. I get zero results. Nada.