Isenia made his debut In 1999 in the Dutch national baseball team and was European champion. He currently plays for the Rotterdam club Sparta/Feyenoord. He plays as a designated hitter or first base. He also represented Netherlands at the Beijing Olympic Games.
Since 2010 is Isenia the Federal coach of the Dutch women's baseball team which for the first time will take part in the women's Baseball World Cup, the World Championship of 2010 in Venezuela from 12 to 22 August.