RIO DE JANEIRO — When the Olympics open up in earnest on Saturday, you can marvel at the athletic prowess on display, cheer for your favorite country, or just enjoy the spectacle.
And in most parts of the world, you can also bet on who will win.
Las Vegas casinos will be taking bets on a handful of events this year. But as usual, international betting firms like Ladbrokes are offering odds on just about every event, from archery to yachting.
The firms stand to lose a lot of money if they post a poor line.