Harmie Constantino CONTRIBUTED PHOTO
National champion Harmie Constantino drilled in a late birdie to cap a rollercoaster round, her 71 netting her a one-stroke lead over fellow amateur Daniella Uy, and pros Chihiro Ikeda and Thais Saraporn Chamchoi and Chatprapa Siriprakob at the start of the ICTSI Malarayat Ladies Classic in Lipa, Batangas on Tuesday.