Complex sentence: In his second start, he won the AT&T Championship in San Antonio, nineteen days after his 50th birthday, two strokes ahead of Mark O'Meara and earned $240,000 for his first win in over six years.
Split into simpler sentences: In his second start he won the AT&T Championship in San Antonio, 19 days after his 50th birthday. He finished two strokes ahead of Mark O'Meara and earned $240,000 for the victory, his first in six years.