In 1945, Tomasi enrolled at the
University of Michigan where he played both football for
Fritz Crisler and baseball for
Ray Fischer. Tomasi was a four-year starter for the 1945, 1946,
1947 and
1948 Michigan Wolverines football teams that won 23 straight games (including undefeated seasons in 1947 and 1948), defeated USC, 49-0, in the
1948 Rose Bowl. During his sophomore year, Tomasi's photograph was published in newspapers across the country with a caption calling him "a charging block of granite for the Michigan Wolverines," and he was selected as a second-team All-Big Ten guard by the conference coaches. Before the 1947 season got underway, one writer noted that Tomasi "is back for more and will give anyone a race for All-America honors." The 1947 Michigan Wolverines team completed the season undefeated. The Wolverines outscored their opponents 394-53, and Coach
Fritz Crisler credited Tomasi "for much of his team's offensive punch." Tomasi was again named to the second-team All-Big Ten team. Tomasi's blocking in the
1948 Rose Bowl helped Michigan outscore the USC Trojans 49-0, and in March 1948, his teammates elected him to be captain of the 1948 team—the first time a guard had been selected as Michigan's captain in 33 years. In 1948, Tomasi was both team captain and one of the top performers on Michigan's second consecutive undefeated team. In October 1948, one columnist described Tomasi's role as follows:"As long as Michigan has operatives like Dominic Tomasi, the hard-hitting guard who captains the team, the Wolverines will give a good account of themselves. Tomasi isn't big as linemen of the Western Conference run, but he is one of the very best guards in intercollegiate circles. He stands only five, ten and weighs 180 pounds, tops, yet he has been a regular since he began playing as a 17-year-old freshman. Extremely fast, and a deadly blocker, 'Tommy' is the key man of the Wolverine offense. His ability to 'turn corners' at full speed and block with split-second precision means as much yardage to Michigan as if he were an All-America ball carrier. Tomasi is also an outstanding second baseman on Michigan's championship baseball team and his work has attracted several big league scouts. As in football, he has been a regular since 1946. He shows the same hustle and keen competitive instinct on the diamond as he does on the gridiron." The 1948 Wolverine team was undefeated for the second consecutive season and was selected as the National Championship team in the final
Associated Press poll. At the conclusion of the 1948 season, Tomasi was selected as the team's Most Valuable Player, a first-team All-Big Ten guard, and a third-team All-American by the
Football Writers Association of America, and the
Central Press Association and
Newspaper Enterprise Association. ==Later years==