P3b7 CKJFAX 327 Fri 1;aApr 21:11/01 1/4 MARATHON: TREBLE ON FOR DORRE at n Dorre i aiming for her $5 third successive victory in eh Lond Ma athon. $hj German runn u would be th first woman to win three in a row as Norway' Ingrid Kristiansen+s four wins were interrupte by Gr ta Wbitu in 1986 Dmu e'u bid whll b boosted h news of the withdrawal o the Ch nj e team d t i h a uh $heir recent domination of won n' distance running led to predictions of a clean sweep but Dorre's main