Query: When did Kerry Wood strike out 20 batters against Houston?
Context: In only his third career start, Kerry Wood struck out 20 batters against Houston on May 6, 1998. This is the franchise record and tied for the Major League record for the most strikeouts in one game by one pitcher (the only other pitcher to strike out 20 batters in a nine-inning game was Roger Clemens, who achieved it twice).