Northern Irish duo Mark Allen and Jordan Brown booked their places in the second round of the Welsh Open on Monday.

Allen knocked in breaks of 61 and 71 in the last two frames to beat Fraser Patrick 4-2, while breaks of 94 and 58 helped Brown to whitewash Luo Honghao at the Celtic Manor in Newport.

Elsewhere, world number one Judd Trump reached the second round with a 4-2 win over China's Zhao Jianbo. Trump trailed 2-1 despite making a 117 break in the second frame.

But Zhao only scored another 17 points as Trump dominated the rest of the match, with breaks of 67, 90 and 51 proving decisive.

Defending champion Shaun Murphy was also a first-round winner as fellow Englishman Zak Surety was beaten 4-1.

Mark Selby produced century breaks of 109 and 134 to overcome Barry Pinches 4-1 and set up a second-round date with Jamie O’Neill.

Matthew Stevens whitewashed James Cahill 4-0 and Jak Jones was another Welsh winner in a seven-frame nail-biter against Fan Zhengyi.

Four-times world champion John Higgins enjoyed visits of 59, 80 and 130 in his 4-1 success against Steven Hallworth.

Ding Junhui, Mark Davis and Joe O’Connor were respective 4-1 winners over Lyu Haotian, Lee Walker and Liang Wenbo, while Anthony McGill and and Matthew Selt also eased through.

A minute’s silence was held for former Welsh snooker star Doug Mountjoy before play started.

Mountjoy, a former Masters and UK Open champion and world championship finalist, died on Sunday at the age of 78.

There's an all-Irish tie on the cards tomorrow afternoon, with Dublin's Fergal O'Brien set to face Cork teenager Aaron Hill.

That match will be followed by Gerard Greene's clash with Farakh Ajaib, while Ken Doherty will have the day off after being awarded a walkover against Kurt Maflin.