“I had a vision, I saw something that no one else saw, and I went for it.”

That’s how “Vegas” Dave Oancea describes the $2.5 million payday he just took off a sports book in Las Vegas after cashing in a futures bet on the Kansas City Royals to win the 2015 World Series.

And with money like that in his pocket, the professional sports bettor, who runs his own sports wagering consulting site at itsvegasdave.com, Oancea can afford to do some things “just for fun.”

Ya know, like buy a new Bentley to park next to his Ferrari. And spend the rest of his life traveling and spending money, rather than betting it. He said he can just worry about making money for his clients now.

But he can also do fun things like bet $10,000 against one of the biggest sure things in MMA history: Ronda Rousey.

“I’ll put $10,000 on that for fun,” Oancea told MMAjunkie Radio. “I’ll put $10,000 on her every time against her and just keep doubling up, because eventually she’s going to lose – that’s my philosophy. It just takes one lucky punch. I’ll put $10,000 on her if they let me do it. I’ve got balls.”

Rousey (12-0 MMA, 6-0 UFC) headlines UFC 193 in Australia on Saturday against Holly Holm (9-0 MMA, 2-0 UFC), and as usual, she’s a heavy favorite. She’s favored more this fight, in fact, than any time before – and that includes 16-1 odds for her in her most recent fight against Bethe Correia at UFC 190. (She won that fight in 34 seconds.)

This time, Rousey can be found at as much as 20-1. The comeback on Holm, a former pro boxer, is as much as +1250 (12.5 to 1).

Conservatively, if Oancea were able to get Holm at +900 and she won, his $10,000 proposed wager would pay him $90,000.

And while that sounds like a life-changing dollar amount for most of us, it’s fairly small potatoes for “Vegas” Dave. He said he recently was banned from betting at the Westgate Las Vegas Superbook in part because his futures wagers the past few years have been too spot-on.

“Three years ago, I had the Ravens to win the Super Bowl – $8,000 to win $200,000,” he said. “The following year, I had the Red Sox – $30,000 to win $340,000. And then I had the Rangers, when they were in last place, to win the (AL) West (this year), and I put $80,000 to win $580,000.

“So I had $580,000 two weeks ago, and that was my biggest payout, and then I had the Royals at $2.5 million two weeks later. I’m pretty disappointed that they won’t take my bets anymore. They just cut me off.”

But he can still show his face at some betting windows, so his $10,000 “fun” bet against Rousey might go down this week. But don’t expect him to suddenly become a go-to guy for picking best bets for MMA.

Instead, he’ll focus on what he knows best.

“I stick to what I’m good at,” Oancea said. “If I bet boxing or MMA, I’d probably bet the underdog because it just takes one lucky punch to knock the person out, so why not take the underdog? I’ve got it down to football and baseball. I want to make people money.”

For more on UFC 193, check out the UFC Rumors section of the site.

MMAjunkie Radio broadcasts Monday-Friday at 1 p.m. ET (10 a.m. PT) live from Mandalay Bay Resort & Casino’s Race & Sports Book. The show, available on SiriusXM Ch. 93, is hosted by “Gorgeous” George Garcia and producer Brian “Goze” Garcia. For more information or to download past episodes, go to www.mmajunkie.com/radio.