 In his 45 years at Michigan, he coached 68 All-Americans as well as 81 Big Ten champions.His teams went undefeated for four years, 1962-1966, winning 34 consecutive matches and 55 of 56 matches until 1968.After coaching five decades, Keen's record was 97-11-2 in his final decade of coaching, 1960-1969, before retiring in 1970; his squads won Big Ten Championships in 1960, 1963, 1964, and 1965 and were NCAA Runner-Up in 1967.