Kristen Merrill Kristen Merrill played for the Red Sox in the Ponytails American League of the 2004 Slow-Pitch Softball Season (5/1/2004 - 6/30/2004) for girls aged 8 - 10 on 9/1/2004 (born 9/2/1993 - 9/1/1996). Kristen Merrill has also played for: Red Sox, Ponytail Division Slow-Pitch Softball, 2006 Season. Kristen's Red Sox Page Red Sox, Ponytail Division Slow-Pitch Softball, 2005 Season. Kristen's Red Sox Page Power, Ponytail Division Volleyball, 2004 Season. Kristen's Power Page