Kyren Wilson hit a maximum 147 from his first visit to the table in the opening frame of his first match in what proved to be a tense 4-3 win over home player Jackson Page at the ManBetX Welsh Open in Cardiff on Tuesday.
Wilson win the second frame, but three frames on the bounce from Page, including a break of 65 in frame five handed the Welshman a 3-2 advantage.
However, world number eight Wilson levelled matters and held his nerve in the decider to advance.
A maximum in the very first frame!? @KyrenWilson couldn't have kicked off his @manbetxofficial Welsh Open campaign in any better style!— World Snooker Tour (@WeAreWST) February 11, 2020
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Four-time winner Ronnie O'Sullivan coasted into the second round with a 4-1 win over Zhang Jiankang.
O'Sullivan swiftly took command of the match with two half-century breaks.
After Zhang pulled a frame back, O'Sullivan stepped things up again with runs of 69 and 81 to seal victory.
Graeme Dott, runner-up to Neil Robertson at the Coral World Grand Prix in Cheltenham at the weekend, saw his hopes of making another ranking event final ended with a 4-0 defeat by Zhao Xintong.
Elsewhere, Mark Joyce edged out Dubliner Fergal O'Brien on a 4-3 scoreline, Northern Ireland's Mark Allen progressed 4-1 against Andrew Higginson and James Wattana beat fellow veteran Jimmy White 4-2 almost 30 years after their first meeting.