Houston has clinched first place.
They have won 88 games and will finish the season ahead of the following teams:

Seattle has won 85 games and has 0 games left to play; they will finish the season with at most 85 wins.

Texas has won 78 games and has 0 games left to play; they will finish the season with at most 78 wins.

Oakland has won 69 games and has 0 games left to play; they will finish the season with at most 69 wins.

Los Angeles has won 63 games and has 0 games left to play; they will finish the season with at most 63 wins.
# Houston Astros' magic number
# Houston's magic number
# Astros' magic number
# MLB Playoff Race