De Witte Leeuwen, as Telstar's supporters are known, are the backbone of the club and create an atmosphere that makes every match special. With their passion and dedication, they craft an unforgettable experience in the Stadion, often filled with colorful banners and a sea of white and black—the club colors.

At a home match, the magic begins even before kick-off, as supporters gather. They often come in groups, with friends and family, and the excitement is palpable. As the sun sets over the Stadion, fans pour in. The smell of fries and snacks mingles with the tension in the air. It’s a social event where old friends meet and new friendships are forged.

One of the most notable traditions is the collective singing. Before the players take the field, supporters gather in the stands and begin to sing. This is not just any singing; these are powerful, emotional songs that reflect the pride and history of Telstar. The lyrics are often adapted to current events or players, adding an extra layer of connection and creativity to the experience.

During derbies, such as those against SC Telstar, the atmosphere becomes even more intense. The rivalry between the two clubs ensures that supporters give their all, from roaring chants to impressive pyro displays. The tension is palpable on the field, and the Stadion vibrates under the energy of the fans. It is a battle of pride, and supporters play a crucial role in creating that unique atmosphere.

Even after matches, supporters remain engaged. Win or lose, the feedback and discussions about the game are an essential part of their culture. Following a victory, it’s common for supporters to celebrate together in the city, while losses often lead to reflection and discussions about what can be improved. This involvement ensures that the bond between the club and its supporters grows stronger, regardless of the match outcome.

Rituals also play an important role in supporter culture. Many fans have their own personal traditions, such as visiting their favorite pub before the match or wearing lucky items. These rituals are often passed down from generation to generation and strengthen the bond with the club and with one another.

In Velsen, supporters are not just fans; they are an integral part of the club's identity. Their traditions and rituals make Telstar not just a football club but a community. De Witte Leeuwen continue to support the club, no matter the challenges ahead, and that is what truly makes Telstar special.