[3] The club plays at the highest level of American football in Switzerland, the Nationalliga A, and has won the national championship game, the Swiss Bowl, on thirteen occasions, last in 2024.

[1] After a slow start with 13 consecutive defeats, the Broncos won their first game in 1993, followed by promotion to the Nationalliga A, the highest level of American football in Switzerland.

[3] The Broncos took another three seasons to make their first Swiss Bowl appearance, narrowly losing 14–13 to the Seaside Vipers St. Gallen in 1998.

In the semi-finals of the play-offs the Broncos then defeated the defending champions Zurich Renegades 29–28, followed by a narrow 2-point Swiss Bowl victory over the Basel Gladiators.

In the 2009 Swiss Bowl, the Broncos defeated the Zurich Renegades 35–23 while the following four finals were won against the Basel Gladiators on each occasion.

[5] In 2014, the club took part in a new European competition, the BIG6 European Football League, which consisted of three teams from Germany, two from Austria and one from Switzerland, the clubs being Berlin Adler, New Yorker Lions, Dresden Monarchs, Raiffeisen Vikings Vienna, Swarco Raiders Tirol and the Calanda Broncos.

Most of the league predicted a steep fall, but the Broncos surprised everyone in 2015 going 11–1 and dominating the Bern Grizzlies in the Swiss Bowl, 49–21.

The Broncos opened the season with a pre-season game against the GFL's Stuttgart Scorpions, leading 20–3 at halftime en route to a 26–24 victory.