Auch der Internationale Sportgerichtshof (Court of Arbitration for Sport, CAS) teilt diese Ansicht im Zusammenhang mit Athleten, die an von
zuständigen Sportverbänden organisierten Wettkämpfen teilnehmen: "[…] whether it be in
respect of the technical rules of a sport or the disciplinary or anti-doping rules, the choice
of an athlete to participate in a competition must necessarily be deemed a tacit acceptance
of the regulations governing that competition […]. […] the absence of a Consent Form cannot
be deemed a valid excuse in itself, since despite the lack of such forms the athletes decided
to participate in the competition