Dallas, May 12 : Korea's S.Y. Noh enjoyed an "amazing" day as he charged to a three-shot first-round lead over Australia's Adam Scott and Marty Zecheng Dou of China at the AT&T Byron Nelson golf championship following a career-low 11-under 60 on Thursday. The 31-year-old Noh, whose lone PGA Tour win came in 2014, needed only 21 putts at TPC Craig Ranch as he sank an eagle and nine birdies to tie the tournament's 18-hole record and season's low round. Even a cracked driver failed to derail Noh's quest to become the fourth Korean winner at the AT&T Byron Nelson as he earned his fourth career first-round lead/co-lead on Tour. Playing on his adopted home course, Dou, who is a Dallas resident, birdied five of his last seven holes to also post his personal low round as he chases a first top-10 finish in his 45th PGA TOUR start (best finish: T17/2022 Butterfield Bermuda Championship). It was also a good day for Korea's four-time Tour winner Si Woo Kim, who snared seven birdies en route to a 65 while former AT&T Byron Nelson champions Sung Kang and Sangmoon Bae, rookie S.H. Kim and Japanese star Hideki Matsuyama opened with 66s. Two-time defending champion K.H. Lee carded a 70 while playing alongside World and FedExCup No. 2, Scottie Scheffler who delighted his hometown fans with a 64. Needing an eagle on the par-5 18th hole, Noh resisted the temptation to attack the hole where the green is guarded by a creek. He thought about pulling out his 3-wood but opted to layup instead which yielded his final birdie of the day. Noh's putter was also finding its range where he ranked first in Strokes Gained: Putting, gaining some 6.5 strokes over the field. He holed a 40-footer for birdie on 11 and saved par on 16 from 27 feet which helped keep his card clean, the PGA Tour said in a report. Dou, 26, is featuring in his second season on the PGA Tour after regaining his status from the Korn Ferry Tour last year but has struggled for much of the season, missing eight cuts from 17 starts. Things began to look up for him despite opening with a bogey at TPC Craig Ranch, which is a short drive from his home. Despite languishing in 164th position on the FedExCup standings, Dou intends to stick to the mantra of one shot at a time over the next few days as he looks to turn the corner. His year has been hampered by coming down with Covid-19 and suffering from a sore right wrist. /IANS