Power carded eight birdies in a bogey-free 62 at Narashino Country Club, lifting him to tied-fourth on nine under and in touch with halfway leader Nico Echavarria.
Echavarria mixed seven birdies with a lone bogey to register a second successive 64 and move two ahead, while a final-hole eagle took Justin Thomas tied-second alongside first-round leader Taylor Moore.
Ireland’s Seamus Power fired the lowest round of the day to jump within three strokes of the halfway lead at the PGA Tour’s Zozo Championship in Japan.
