Código PHP:
$previousNumGame = 0;
$previousTeams = 0;
while($dataGames = $strDataGames->fetch(PDO::FETCH_ASSOC)){
if($dataGames['NumGame'] == $previousNumGame && $dataGames['Teams'] == $previousTeams){
// HAGA LO QUE QUIERO...
}
$previousTeams = $dataGames['Teams'] ;
$previousNumGame = $dataGames['NumGame'];
}