Garrels enrolled at the
University of Michigan in 1903 and received a degree in chemical engineering in 1907. While attending Michigan, Garrels became one of the most accomplished athletes in the university's history. He excelled as a member of Michigan's football teams from 1904 to 1906 and as a member of its track and field team from 1904 to 1907. He was also a member of the
Tau Beta Pi fraternity and the Michigamua and Vulcan societies at Michigan.
Track and field In April 1904, Garrels, while still a freshman, demonstrated his ability by throwing the discus "around 118 and 119 feet"—a distance that would have won the event at the prior week's Philadelphia meet. Garrels announced at the time that he intended to make a specialty of the discus throw. In April 1905, while competing at a meet in Philadelphia, Garrels threw the discus a distance of 135 feet and one-half inch, which exceeded the established world record of 128 feet, 10-1/2 inches. However, AAU officials ruled that the discus used by Garrels "did not comply strictly with AAU regulations.") Two months later, when Garrels competed at the
Western Conference track meet in Chicago, he took care to ensure that the discus he used complied with all regulations in the opinion of the officials present at the meet. At that meet, Garrels threw the discus 140 feet, 2-3/8 inches, shattering the old world record by nearly 12 feet. Officials at the meet listed the toss as a new world record, but AAU officials again rejected the record, contending that "the discus used was not constructed on the official lines laid down by the A.A.U." The
Detroit Free Press wrote that the AAU was a "discredited" organization and led its coverage of the ruling with a headline declaring, "GARRELS AGAIN ROBBED OF HONORS, A.A.U. REFUSING WORLD'S RECORD." At the 1906 conference meet, Garrels equaled the world's record in the 120-yard hurdles, but AAU officials ruled that his time would not qualify for the world record, as he had displaced two hurdles during the race. Under the AAU rules in effect at the time, all hurdles must be standing at the end of the race. Garrels' time did qualify, however, as a new Western Conference record. Following the 1906 conference meet, Garrels was elected captain of the 1907 track team. In 1932, long-time Michigan and Princeton track coach
Keene Fitzpatrick, who trained multiple Olympic gold medalists, called Garrels the best all-around athlete he ever handled.
Football Garrels also played for
Fielding H. Yost's
Michigan Wolverines football teams from 1904 to 1906. As a sophomore, Garrels was the starting left end in six of ten games for the undefeated
1904 "Point-a-Minute" team that outscored its opponents 567–22. As a junior, Garrels started all 13 games as the left end for the
1905 "Point-a-Minute" team that outscored opponents 495–2. Garrels was the third leading scorer on the 1905 team (behind Tom Hammond and Joe Curtis) with seven touchdowns and eight extra point kicks for a total of 43 points. Michigan's sole setback in 1905 was a 2–0 loss to the University of Chicago team. Garrels had the longest run of the game, a 35-yard run around Chicago's left end. Garrels was stopped by Chicago All-American
Walter Eckersall. The
Detroit Free Press wrote: "Had there been interference near enough to brush off Eckersall, Michigan would have scored an easy touchdown and victory." At the end of the 1905 season, the
Detroit Free Press rated him as the "Star of Yost's Grid Warriors," adding, "If there was a man who stood out prominently, it was Johnnie Garrels." Michigan easily won its first three games in 1906 against Case (28–0), Ohio State (6–0) and Illinois (28–9). The game against Case marked the first game at
Ferry Field, and Garrels scored the Wolverines' first touchdown in the new stadium. He also returned the opening kickoff 95 yards against Illinois. In the fourth game of the 1906 season, Michigan narrowly defeated Vanderbilt by a score of 10–4. Garrels accounted for nine of Michigan's ten points with a field goal from the 25-yard line in the first half and a touchdown run that has been reported as either 65 or 75 yards on a fake punt in the second half. Following the Vanderbilt game,
The Pittsburg Press wrote: Garrels is the best fullback in the West and probably has no equal in the country. Weighing 200 pounds, he is a wonderfully speedy runner, capable of covering the 100 yards in 10 seconds. He is a fine punter, place and drop kicker, tackles well, and is a great line plunger. With Curtis out of the lineup, Penn's efforts were concentrated on Garrels, and "his every attempt at an end run or a fake kick" were stopped. Despite the loss, Garrels was credited with playing a "star game," as the
Detroit Free Press observed, "The sum and substance of the failure of Garrels to do much today was the great playing of Pennsylvania's ends and the almost total lack of interference by the Michigan halfbacks for him." ==1908 Summer Olympics==