Supporter activities are identical to negative things, not only negative things, but supporter activities also have positive values. the example of positive value is that supporter activities are a place to channel our aspirations, inspiration, and creativity. besides that we can unite all the citizens of SMAN 15. when in the field, we don't just sing songs, but we also sway together, lift the paper choreo, laugh happily to cry proudly together.

like gambesmania, have you ever heard the word 'gambesmania'?

Gambesmania is a term for loyal supporters of Sman 15 Surabaya.

The beginning of Gambesmania's history was established on December 4, 2011, which was founded by the 27th generation. The name Gambesmania started from a joke in a gathering place for senior high school 15 students until the word 'Gambes' which means 'Big Family of 15 Surabaya'. Well, the beginning of Gambesmania was once just a small community based on friendship & family that aims to unite all elements of Libels citizens for one purpose, namely to move together to support the competing Sman 15 Surabaya students. Until in the end Gambesmania actively became a loyal supporter of Sman 15 Surabaya like during basketball, futsal, and other matches. With this activity, high school 15 won several best supporters. and that makes the image of sman 15 better.