SAN FRANCISCO, CA (The Spread) - The Giants go for the sweep against the Nationals today at 4:05PM ET and will have their ace on the mound in Madison Bumgarner.

View Tonight's MLB Odds

But having Bumgarner on the mound hasn't been a good thing for the Giants when they've played the Nationals in years past. In fact, San Francisco is winless at 0-5 in its last five games versus Washington when Bumgarner starts the game.

The under has also been profitable in this matchup, going 4-1 in Bumgarner's last five starts versus the Nationals and 7-3 in the last 10 meetings overall between these two teams.

According to oddsmakers from online sports book GT Bets, the Giants are -159 money line favorites over the Nationals after opening with -165 odds to win. With Bumgarner facing Joe Ross in the pitching matchup, the total has gone from 6.5 up to 7.

Bet Tonight's MLB Games

Want More From TheSpread.com? Follow us on Twitter and Facebook or Subscribe to Our News Feeds!