Jon Jones' older brother Arthur recently revealed he's never lost a fight to the UFC star, and he might not have lost a bet, either.

The brothers got to wagering on Saturday night's UFC 198 fights, and as Art put it to Jon, "I'm glad you can fight better than you predict fights."

So @Artj97 just called me wanting to bet $500 on each fight starting here. I got Nate Marquart

— Jon Bones Jones (@JonnyBones) May 15, 2016

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@JonnyBones @Artj97 Oh damn. Art $500 | Bones $0
This is going to get competitive tonight between you two. 😬 #UFC198

— #UFC198 (@ufc) May 15, 2016

Arthur got to pick first I get to pick the next one, we are going every other https://t.co/NZOdcVvTrp

— Jon Bones Jones (@JonnyBones) May 15, 2016

Even though Browns a hater, I'm picking him for this next one https://t.co/nHUYgV97ee

— Jon Bones Jones (@JonnyBones) May 15, 2016

Guess I got Demiab Maia !!! @Artj97

— Arthur Jones (@Artj97) May 15, 2016

Well, I'm glad you can fight better than you predict fights. That's a $1,000 buddy. See ya main card! My pick 👊🏾👊🏾 #UFC198

— Arthur Jones (@Artj97) May 15, 2016

We are back on! My pick I have J. Souza 💪🏾💪🏾💪🏾💯💯#UFC198 @JonnyBones

— Arthur Jones (@Artj97) May 15, 2016

OK just making it to this fight party, missed half the fights. Guess I got Belfort

— Jon Bones Jones (@JonnyBones) May 15, 2016

Damn, not a good night for me. I'm going with the champ with my last pick

— Jon Bones Jones (@JonnyBones) May 15, 2016

I like the champ , but you pick wrong @JonnyBones once again. The man from Cleveland is ready! #Miocic 🚨🚨🚨upset alert🚨🚨🚨 #UFC198

— Arthur Jones (@Artj97) May 15, 2016

I called it. lol 🚨🚨🚨 4-0 on the night & a$2,000 payout from @JonnyBones . Not a bad night. Pleasure doing business with you lil bro! #ufc198

— Arthur Jones (@Artj97) May 15, 2016

Man, that sucked... Lost $2,000 to Big brother Art and $500 to @sixgungibson https://t.co/UnHJAYOsi8

— Jon Bones Jones (@JonnyBones) May 15, 2016

If Jon wants to beat Daniel Cormier in their rematch, he'd better not bet on himself.