About 21,000 Swiss sports clubs with their approximately 1.6 million active members provide a diverse and wide range of all kinds of sports. To make this possible about 350,000 people volunteer, what corresponds to an annual value of about two billions Swiss francs. As a result, they make an important contribution to the commonweal.
The Challengers Baseball and Softball Club thanks its volunteers for their dedication to the club, to the sport.

Umpires

Thomas Blank
Thomas Burger
Adrian Kämpfer
Ryan Koley
Cheyenne La Marr
Anouk Lkharrazi
Carlos Nepomuceno
Andreas Rüdisühli
Adderly Sarmiento
Daiki Sato
Ilario Scapozza
Säntis Zeller
Gregory Zingg

Scorers

Pierre Burger
Dominic Gisin
Ryan Koley
Serge Kuenzler
Chris Palatinus
Willy Schaub
Sandro Schlumpf
Sabina Sokolowski
Alexia Zingg
Gregory Zingg

J+S-Instructors

Dominic Gisin
Adrian Kämpfer
Kurt Kovac
Anouk Lkharrazi
Carlos Nepomuceno
Chris Palatinus
Christine Pfrimmer
Meret Roth
James Sanders
Adderly Sarmiento
Mindy Siemers
Sabina Sokolowski
Säntis Zeller
Alexia Zingg
Gregory Zingg