Tigers vs. Cubs prediction: Why Cubs are favored to win Tuesday's MLB matchup [7/21/2026]

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Written by Dave Garofolo

Get Detroit Tigers vs Chicago Cubs predictions for MLB Tuesday.

Detroit Tigers-Chicago Cubs Predictions and Game Preview.
Detroit Tigers vs. Chicago Cubs MLB prediction for Tuesday, July 21, 2026.

The Chicago Cubs will face the Detroit Tigers, in what is expected to be a tight MLB game, at Wrigley Field on Tuesday, beginning at 8:05 PM ET.

The Cubs will send David Peterson (4-7, 6.45 ERA) to the mound, while the Tigers have opted for Framber Valdez (5-6, 4.10 ERA).

Based on updated simulation results, Dimers' proven MLB model gives the Cubs a slight edge with a 53.4% win probability over the Tigers.

This article offers a closer look at Tuesday's Tigers vs. Cubs matchup, including best bets and picks.

Tigers vs. Cubs prediction: Who will win and cover?

Using powerful machine learning and data, we have simulated the result of Tuesday's MLB matchup between the Tigers and Cubs, forming part of our MLB predictions coverage.

Our leading predictive model gives the Cubs a 53.4% chance of beating the Tigers.

According to our model, the Tigers (+1.5) have a 63.3% chance of covering the run line, while the over/under total of 8.5 runs has a 50.0% chance of going over,.

 

Tigers vs. Cubs odds [7/21/2026]

We have sourced the best MLB odds in America for this game, which are listed here:

Bet Type Tigers Cubs
Run Line +1.5 (-205) -1.5 (+170)
Moneyline +108 -111
Total o8.5 (+117) u8.5 (-110)

All odds are correct at the time of publication and are subject to change.

Tigers vs. Cubs picks and best bet

After matching our predictions against the best current odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:

Bet Type Pick Bet Now
Run Line Cubs -1.5 +170
Moneyline Cubs -111
Total Over 8.5 +117

According to our MLB best bets, the top play to make on this game is Over 8.5 total runs.

These picks are based on our probabilities matched against the implied probabilities from the sportsbook odds.

 

Tigers vs. Cubs game-day updates and essential details

Tuesday's MLB action between the Cubs and Tigers at Wrigley Field is scheduled to begin at 8:05 PM ET.

Conclusion

We predict the Cubs, with a 53.4% win probability, will likely beat the Tigers in Tuesday's MLB matchup.

Additional tools and information for betting safely can be found in our Responsible Gambling hub.

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Written by
Dave Garofolo
Content Producer

Dave Garofolo uses sophisticated AI-driven analytics to make predictions and evaluate player performances in the NBA, MLB, NFL, NHL, NCAAM, and PGA TOUR tournaments, crafting insightful game and prop previews.

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