... On the same day! (ignore the name typo)
From his Twitter
"BREAKING NEWS: For our 100th show, I'm excited to announce that ONE: Century on Oct 13 in Tokyo will feature 2 full-scale world championship events on the same day. Our morning show will air live on TNT on Saturday night in the US, and our evening show will air live around world."
Now that's how you celebrate 100 events!
https://twitter.com/yodchatri/status/1163448450287116289