The Chicago Cubs have placed themselves in a favorable position to begin October at Wrigley Field. Their reward for protecting it could be another postseason meeting with the team that has repeatedly given them trouble.

The Cubs enter Thursday at 85-68, holding the National League’s top Wild Card position by half a game over the Philadelphia Phillies. The Cubs also own the head-to-head tiebreaker, giving them an important advantage with nine games remaining.

The difference between the No. 4 and No. 5 seeds matters. The higher seed hosts every game in the best-of-three Wild Card Series. If the current standings hold, Philadelphia would visit Wrigley. Falling one spot behind the Phillies would send the Cubs to Citizens Bank Park.

That makes slipping to the No. 5 seed the Cubs’ clearest nightmare scenario. Chicago would sacrifice home-field advantage without escaping the Milwaukee Brewers’ side of the bracket. The Phillies matchup itself, however, should not frighten Chicago.

The Cubs went 6-1 against the Phillies this season, winning two of three at Citizens Bank Park before sweeping four games at Wrigley. The Cubs scored at least seven runs in five of those victories. The Phillies still present danger behind Kyle Schwarber, Bryce Harper and Trea Turner, but no potential opponent offers Chicago stronger head-to-head evidence.

The San Diego Padres would create more uncertainty if they climbed into the No. 5 seed. San Diego has won nine of its last 10 games and sits only 1.5 games behind the Cubs. However, Chicago owns that tiebreaker as well. The priority is clear: remain fourth and force every challenger to win at Wrigley.

The larger nightmare waits beyond the Wild Card round.

Under the current bracket, the winner between the fourth and fifth seeds would face the top-seeded Brewers in the NLDS. Milwaukee went 9-4 against Chicago this season and swept the clubs’ final three-game series at American Family Field. That sweep completed the Brewers’ control of the season series and left the Cubs with another reason to fear their division rival.

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Recent postseason history makes that route even less appealing. The Brewers eliminated Chicago in five games during the 2025 NLDS. Another series would give the Cubs an opportunity for revenge, but their 2026 results provide little reason to welcome it.

The Brewers are 95-57 with a plus-200 run differential. Chicago has scored 817 runs and owns a plus-143 differential, yet the Brewers have repeatedly demonstrated that they can outlast their division rival.

Falling to the No. 6 seed would technically move the Cubs away from the Brewers’ side of the bracket. It would also require the Cubs to open on the road against the Atlanta Braves, with the Los Angeles Dodgers potentially waiting next. Treating that route as preferable would ignore the importance of home-field advantage and the difficulty of surviving consecutive series against division leaders.

The Cubs’ final schedule gives them control. The club visits the Cincinnati Reds, hosts the Miami Marlins and finishes with three road games vs. the Boston Red Sox to close out the year. The closing series represents the greatest obstacle, making victories against two losing clubs beforehand especially important.

Pete Crow-Armstrong’s 44 home runs and Shota Imanaga’s recent surge give the Cubs enough star power to threaten anyone. Chicago should enter October confidently, but not carelessly.

The ideal route is clear. Retain the No. 4 seed, host Philadelphia and capitalize on a favorable season series. Survive that round, and the Cubs must confront their true nightmare—a Milwaukee club they have yet to prove they can overcome.