Ireland's Mark Campbell from the Stackstown Golf Club, Dublin, is through to today's final of the Belgian junior international boys' golf championship at Royal Golf de Belgique.His opponent will be Sweden's Linus Pettersson from Stockholm.Campbell, who is coached by European Tour player Padraig Harrington, beat Germany's Richard Treis at the 19th in yesterday's quarter-finals before scoring a 3 and 2 win over Michele Rigone of Italy to earn a place in the final.Pettersson eliminated qualifier Arne Dickel (Germany) at the 19th in the quarter-finals and then beat Richard Porter (Germany) by 5 and 3.The women's final will be contested between Linda Wessberg (Sweden) and this year's British girl's open championship winner, Maria Beautell (Spain).