Bet on Real Sociedad vs Rayo Vallecano on Sunday, 22 August. With the Smarkets exchange, you can back or lay your bets on the clash between Real Sociedad and Rayo Vallecano on Sunday, 22 August. This game has 69 markets available to bet on. The popular markets so far are Full-time result, Correct score, Both teams to score and Double chance. The favourites to win the game between Real Sociedad and Rayo Vallecano as of publication are Real Sociedad who are priced at odds of 1.04. The odds of a draw are 50 while the odds for Rayo Vallecano to win are 65. A US$10.00 back bet on Real Sociedad to win returns ERR, whereas a US$10.00 back bet on Rayo Vallecano to win are ERR. If you think neither side will come away with the victory, betting the same amount in a back bet on the draw would win you ERR. As Smarkets is an exchange, you can also place lay bets on all outcomes for Real Sociedad vs Rayo Vallecano. You can also use the bet calculator to help you calculate potential winnings.