Asian Marathon Championships
In that competition , championship marathons were held for men in 1973 and 1975 , then finally for both men and women at the 1985 . 
<triplet> 1973 <subj> 1973 <obj> point in time <subj> 1975 <obj> followed by <triplet> 1975 <subj> 1973 <obj> follows <subj> 1975 <obj> point in time <triplet> 1985 <subj> 1985 <obj> point in time