The 26-year-old Jakraphan played flawlessly over his opening nine holes highlighted by four birdies before cruising to a seven-under-par 137 total at the historic Karachi Golf Club.
Joining him at the pinnacle of a Thai-dominated leaderboard are compatriots with compatriots Suradit Yongcharoenchai and Namchok Tantipokhakul.
Suradit s hunt for his maiden Asian Tour title is on track. After a starting his day with a string of pars, his round kick-started after sinking three-consecutive birdies from holes seven to nine. Suradit made two more birdies and a lone bogey before signing for a 68.
Namchok s driving woes continue in the second round as he has only hit half seven out of 14 fairways. He wasn t able to rely on his putts today but was still able to card a 70 to finish tied-first at the halfway stage of the US$300,000 event.
Pawin Ingkhapradit of Thailand and Pakistan s Muhammad Munir are in tied-fourth after carding 70 and 69 respectively.
Another Thai, Tirawat Kawesiribandit, is in lone sixth after ending his day with a 69.
Eight players, including Singaporeans Mitchell Slorach and Koh Deng Shan, as well as Bangladeshi Siddikur Rahman are in tied-eight.
Danny Masrin of Indonesia carded a flawless 66, the lowest score of the morning session. He was able to sustain his forward momentum throughout the entire day after a challenging par save at the start of his round on 10th.
The cut line was set at four-over-par. 74 players will progress to the weekend rounds.