As the only amateur to make the cut (+1), the 15-year-old will be awarded the Smyth Salver if she completes all four rounds of the championship at Royal Lytham & St Annes.
With scores of 73 and 71, Thitikul finished the second round at Even par to progress to the weekend.
The Thai teenager booked her place at RICOH Women’s British Open after lifting the Women’s Amateur Asia-Pacific trophy at Sentosa Golf Club in Singapore in February.
As a result of that victory, she also played in the 2018 HSBC Women’s World Championship held at Sentosa the following week recording a top ten finish, as well as the ANA Inspiration at Mission Hills in California where she again finished as the leading amateur in the field.
The Women’s Amateur Asia-Pacific championship has been developed by the Asia Pacific Golf Confederation (APGC) and The R&A to nurture talent and provide a pathway for the region’s elite women amateurs to the international stage and opportunities to play in the major golf championships in women’s golf.
The Royal Golf Club in Japan will host the second edition of the Women’s Amateur Asia-Pacific championship from April 25-28, 2019. The winner will again earn invitations to the ANA Inspiration, the Ricoh Women’s British Open and the new Augusta National Women’s Amateur Championship next year.