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Chicago Cubs vs Houston Astros Predictions: Wrigley Field Wind & Betting System Edge

Chicago Cubs vs Houston Astros Predictions: Wrigley Field Wind & Betting System Edge article feature image
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May 19, 2026; Chicago, Illinois, USA; An airline flies by Chicago Cubs flags during the seventh inning of the game against the Milwaukee Brewers at Wrigley Field. Mandatory Credit: Matt Marton-Imagn Images

It’s another classic "Wrigley Wind" day on the North Side.

Wrigley Field's projected weather report is calling for double-digit winds blowing directly in from center field toward home plate during the Cubs' Friday afternoon game with the Astros.

Get the latest coverage on MLB Weather.

Given how strongly the wind affects Wrigley's scoring environment, we could see a lower-scoring ballgame.

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Chicago Cubs vs Houston Astros Predictions

As you might know, betting Unders at Wrigley when the wind is either blowing in or cross-field has historically been very profitable.

We have an Action PRO System dedicated to tracking this exact phenomenon.

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Action PRO System: Wrigley Field Unders

Since 2005, when the wind is blowing either in or cross-field at Wrigley, the Under is 315-207-30, a 60% win rate generating a 17% ROI.

As written by our own Evan Abrams:

This System focuses exclusively on Cubs home games, where wind direction is a major scoring variable. When the wind blows in or across (from the sides), and the total opens between eight and 13, Unders become highly valuable. Wrigley is uniquely sensitive to weather due to its field orientation and lack of a dome, making it the premier ballpark for wind-based betting edges.

Between the wind direction and the mid-60s temperatures, BallParkPal's weather model projects a -15% run-scoring factor for today's game, lowering his projected total by 1.28 runs compared to a weather-neutral day.

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About the Author

Tanner McGrath covers college basketball, college football and Major League Baseball at Action Network. He is a contributor to Payoff Pitch, Action Network’s Major League Baseball betting podcast. He's been working in the space for more than five years with past journalism experience in Canadian collegiate sports, finance and economics. He has an obsession with America East basketball, betting the Miami Marlins and sweating out home underdogs.

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