NL Wild Card Betting: Sharp Action Moving Rockies-Cubs Over/Under

After losing divisional tiebreakers on Monday, the Colorado Rockies and Chicago Cubs will match up in Tuesday's NL wild-card game. It's a quick and disappointing turnaround for both teams, and professional bettors have already made a play on how it will affect scoring tonight.

Pinnacle opened the Rockies-Cubs over/under at 7.5, and behind 60% of tickets and 61% of dollars wagered, early money is favoring the over.

However, sharp bettors jumped on the under, steaming this number down to 7.

Steam is defined as sudden and uniform line movement across the betting market and is usually the result of respected bettors playing the same side of a game at multiple sportsbooks, all at once.

According to Sports Insights' Bet Signals — which track professional action in real time across the sports betting market — sharps hit the under once last night and again earlier this morning, revealing why this over/under has dropped despite the majority of bettors playing the over.

Fatigue is surely playing a hand in this line movement, and while the winds aren't expected to be drastic, the current forecast is calling for a steady 5-mph breeze to blow in from right-center field throughout the game.

Since 2005, unders are 206-148-15 (58.2%) when winds of at least 5 mph are blowing in at Wrigley Field, according to Bet Labs.