MLB Pick - Houston Astros vs San Francisco Giants Prediction, 7/31/21, Free Betting Tips and Odds San Francisco Giants vs Houston Astros MLB picks and predictions 7/31/21. The Houston Astros travel to San Francisco, CA to face the San Francisco Giants at 4:00PM EST at Oracle Park. Doc's Sports provides MLB picks, predictions, tips and MLB odds on this matchup of Houston Astros vs San Francisco Giants FREE $60 New Member Account at Doc's Sports https://www.docsports.com/free60 Free MLB Picks https://www.docsports.com/free-picks/baseball/ Expert MLB Picks https://www.docsports.com/expert-picks/mlb/ 12 Tips for MLB Betting https://www.docsports.com/free-betting-tips/mlb-handicapper.html All free picks https://www.docsports.com/free-picks/ Scott Spreitzer's main page at docsports.com https://www.docsports.com/cappers.html?cap_id=29 Make sure to follow Scott on Twitter: Scott Spreitzer: https://twitter.com/scottwins Scott Spreitzer YouTube: https://www.youtube.com/channel/UCHT4h93ZdhFh72SvLubHryw Doc's Sports Twitter https://twitter.com/docssports FREE $60 New Member Account at Doc's Sports https://www.docsports.com/free60 Catch all the GUARANTEED Action at Doc's Sports - America's Leader in Sports Handicapping since 1971 - Click - Invest - Win #MLBExpertPicks #MLBPicks #FreeMLBPick #MLBPrediction #MLBPick #MLBPicksAgainsttheSpread #MLBOdds #MLBPickExpert #MLBPredictionsToday #MLBPicksTonight #MLBParlayPicks #MLBBestBets #MLBBettingTips #TakeItBack #SFGiants #ScottSpreitzer #DocSports