Caitlyn Jenner's breasts defied the odds last night ... and people won a TON of money because of it ... this according to the gambling site that put up a prop bet on CJ's cleavage.
As we previously reported, BetOnline.ag offered gamblers the chance to bet on whether Caitlyn would show off the gals during the ESPYs -- and before the show, the odds said she would.
But while CJ flaunted a plunging neckline when receiving the Arthur Ashe Award for Courage -- there was NO CLEAVAGE -- so the website says it did NOT pay out for pro-boob bettors.
Surprisingly, the site says 78% of bettors put their money on "no" -- so the public wins thanks to Caitlyn's classy fashion choice.
Fun Fact -- the site tells us they took more action on the cleavage bet than on the point spread of any of the 4 WNBA games that took place yesterday.
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