The 2015-2016 season represents one of the most significant chapters in the history of CD Tondela, marked by the club's first participation in the Primeira Liga Portuguesa. After a long wait, Os Beirões achieved promotion from the Segunda Liga, where they showcased quality football and resilience that captivated the fans.

The start of the season was filled with expectations but also anxiety. The team, under the guidance of their coach, had to quickly adapt to the new level of competition, facing clubs with greater experience and resources. The Estádio João Cardoso became a true fortress, where the support of the fans was crucial in helping the team secure important points.

One of the most memorable moments of the season was the home victory against Moreirense, which not only brought three valuable points but also a feeling that Tondela could compete with the best. The team displayed impressive grit and a fighting spirit that became their hallmark. Even with some painful defeats along the way, the unity and determination of the squad were essential in facing each challenge.

As the season progressed, Tondela began to earn respect in the league. Matches against historical rivals like Arouca became true tests of fire, and the rivalry between the teams added extra excitement to the encounters. Each win, draw, or loss was intensely felt by the fans who unwaveringly supported the team.

With the end of the season approaching, Tondela fought until the last moment to secure their place in the Primeira Liga. The collective effort of the team and the unwavering support from the fans resulted in an exhilarating stay in the elite of Portuguese football. This season not only marked a new beginning for the club but also solidified the identity of Os Beirões as a respectable force in national football.