private function canBeMovedDown(Registration $registration)
 {
     $result = false;
     if ($registration->isValidForRace()) {
         $maxStarters = $registration->getSection()->getRace()->getMaxStarterPerSection();
         if ($registration->getLane() < $maxStarters) {
             $result = true;
         } else {
             // last lane or even higher number than allowed
             $next = $this->getNextPossibleSection($registration, function ($x, $y) {
                 return $x > $y;
             });
             if (!is_null($next)) {
                 $result = true;
             }
         }
     }
     return $result;
 }