Objective:To determine the basal ovarian reserve markers for prediction of poor and high responses and clinical pregnancy outcome in subfertileAsian women requiring controlled ovarian stimulation(COS) treatment inSingapore.Methods:SubfertileAsian women, aged ≤40 with basal serum follicle stimulating hormone(FSH) level of ≤12IU/L, were enrolled prospectively during routine preliminary endocrine ovarian reserve assessment prior toCOS regime for intracytoplasmic sperm insemination(ICSI) cycles.Basal serum levels of the endocrine ovarian reserve markers(anti-Müllerian hormone(AMH), estradiol,FSH, luteinizing hormone), antral follicle count(AFC) and ovarian response parameters were compared between thePoor(retrieved oocytes ≤4),Normal(retrieved oocytes,5 to19) andHighResponder(retrieved oocytes ≥20) groups of women.Results:Basal serumAMH andAFC were significantly correlated to age (r =-0.213 and -0.243, respectively) and to the number of retrieved oocytes(r=0.570 and0.523, respectively)(P<0.05).Both basal serumAMH andAFC were significant discriminators of poor response(cut-off levels of ≤2.0 ng/mL and ≤12, respectively) and for high response(AMH ≥3.2 ng/mL andAFC of ≥20, respectively) toCOS.BasalAMH was the only significant predictor for clinical pregnancy outcome,ROCAUC =0.71, cut-off level of ≥3.0 ng/mL and odds ratio of 1.42.Conclusions:Both basal serumAMH andAFC were reliable ovarian reserve markers for predicting poor and high ovarian response toCOS inAsian women.BasalAMH was the only significant predictor for clinical pregnancy outcome.