Luke Donald made an excellent start to the Dunlop Phoenix tournament in Japan where an opening 65 earned him a share of the lead after the first day.
The world number threebirdied four of the last five holes to cap a sparkling inward 30 and join Hideto Tanihara and Brendan Jones at the top of the leaderboard.
The Englishman dropped shots at the first and sixth holes either side of a birdie at the third, and birdies at seven and nine got him under the card at the turn.
Donald, making his first Japan Tour appearance since 2007, picked up further shots at 11 and 14 before finishing with three straight birdies.
The leading trio are two strokes clear of Koichiro Kawano and Shunsuke Sonada, while Donald's Ryder Cup team-mate Nicolas Colsaerts is four strokes of the pace after a solid 69.
Collated first round scores (Jpn unless stated, par 71):
65 Luke Donald (Eng), Brendan Jones (Aus), Hideto Tanihara
67 Koichiro Kawano, Shunsuke Sonoda
68 Hirohito Koizumi, S K Ho (Kor)
69 Tomohiro Kondo, S j Park (Kor), Nicolas Colsaerts (Bel), Nobuhiro Masuda, Hiroyuki Fujita, Shigeru Nonaka, Hyun-woo Ryu (Kor), Shingo Katayama
70 Hideki Matsuyama, Tadahiro Takayama, Neven Basic (Aus), Toshinori Muto, Takashi Kanemoto, Jonas Blixt (Swe), Alvaro Quiros (Spa), Kazuhiko Hosokawa, Min-gyu Cho (Kor), Yusaku Miyazato, Gonzalo Fdez-Castano (Spa), Hyung-sung Kim (Kor)
71 Tommy Nakajima, Daisuke Maruyama, Kyoung-hoon Lee, Mamo Osanai, Toru Taniguchi, Hiroo Kawai, Kevin Stadler (USA), Yoshinori Fujimoto, Kurt Barnes (Aus), Shigeki Maruyama, Paul Sheehan (Aus)
72 Kaname Yokoo, Tetsuya Haraguchi, Kazuhiro Yamashita, Hidemasa Hoshino, Keiichiro Fukabori, Ryuichi Oda, I j Jang (Kor), Thorbjorn Olesen (Den), Kodai Ichihara
73 Koumei Oda, Mitsuhiro Tateyama, Do-hoon Kim (Kor), Ryo Ishikawa, Naomichi joe Ozaki, Prayad Marksaeng (Tha), Sang-moon Bae (Kor), Taichi Teshima, Steven Conran (Aus)
74 Sushi Ishigaki, Kiyoshi Miyazato, David Smail (Nzl), Yui Ueda, Yuji Igarashi, Kenichi Kuboya, Masanori Kobayashi, Azuma Yano, Jung-Gon Hwang (Kor), Kunihiro Kamii, Han Lee (USA), Tatsunori Nukaga, Masamichi Uehira, Yoshikazu Haku, Brad Kennedy (Aus)
75 Shinichi Yokota, Satoshi Tomiyama, Hiroshi Iwata
76 Tetsuji Hiratsuka, Ashun Wu (Chn), Edoardo Molinari (Ita)
77 Hyung-tae Kim, Masatsugu Morofuji
78 Katsumasa Miyamoto, Michio Matsumura, Chawalit Plaphol (Tha)
79 Masashi Ozaki
80 Ricky Barnes (USA)