He had 10 or more wins in 19 seasons , and never had a losing record .
Clemens had six seasons with 20 or more wins , including a 24 - 4 record with Boston in 1986 .
Clemens had 10 or more wins in 19 seasons , and never had a losing record .
Clemens had six seasons with 20 or more wins , including a 24 - 4 record with Boston in 1986 .