The Astros pound out 6 runs on 5 hits in the 9th inning to keep Jordan Lyles from losing his major league debut against the Cubs. Trailing 3 – 1 against hard-throwing Carlos Marmol at Wrigley Field, Houston starts the inning with a single by Brett Wallace; Chris Johnson, Matt Downs and Michael Bourn also get hits, and after a walk, Hunter Pence puts the game out of reach with a three-run homer. Lyles, the youngest player in the majors, keeps the Cubs scoreless through 7 before coughing up a pair of runs – one of them unearned – to start the 8th. Reliever Fernando Rodriguez gets credit for his first career win.

On May 31, 2011 — The Astros pound out 6 runs on 5 hits in the 9th inning to keep Jordan Lyles from losing his major league debut against the Cubs. Trailing 3 – 1 against hard-throwing Carlos Marmol at Wrigley Field, Houston starts the inning with a single by Brett Wallace; Chris Johnson, Matt Downs and Michael Bourn also get hits, and after a walk, Hunter Pence puts the game out of reach with a three-run homer. Lyles, the youngest player in the majors, keeps the Cubs scoreless through 7 before coughing up a pair of runs – one of them unearned – to start the 8th. Reliever Fernando Rodriguez gets credit for his first career win.

Source:
Baseball Reference May 31