Australian Robertson was a 4-0 winner over Ali Carter, who was given an emotional reception as he continues his recovery from cancer.

New International champion Walden completed a 4-0 success against Mark Allen, but he appeared to be tired after his return from winning in China last weekend.

Ricky Walden beats Mark Allen to win in China
02/11/2014 AT 16:58

That seemed to play out in the evening's group final against 2010 world champion Robertson who just had too much quality in the end.

Walden won the first frame with a 43 and an 87 only for Robertson to level at 1-1 with a 63.

A 134 saw Robertson move 2-1 clear, but Walden won the next two frames including 45 and 61 in the fifth frame.

It was to be the last frame he won as Robertson levelled at 3-3 with a 59 before battling his way to the next three frames to set up a meeting with his rival Judd Trump in the last four on Saturday night.

Defending champion Ronnie O'Sullivan and Ding Junhui contest the first semi-final on Saturday afternoon.

Champion of Champions draw and results

Monday 3rd, Group 4 (first match at 1.00pm)

Ding Junhui (1) 4-2 Dominic Dale

Barry Hawkins (2) 4-1 John Higgins

Group 4 final (7pm)

Ding Junhui (1) 6-5 Barry Hawkins

Tuesday 4th, Group 2 (first match at 1.00pm)

Mark Selby (1) 4-1 Steve Davis

Judd Trump (2) 4-1 Stephen Maguire

Group 2 final (7pm)

Judd Trump 6-1 Mark Selby

Wednesday 5th, Group 1 (first match at 1pm)

Ronnie O'Sullivan (1) 4-2 Stuart Bingham

Shaun Murphy (2) 1-4 Marco Fu

Group 1 final (7pm)

Ronnie O'Sullivan 6-0 Marco Fu

Friday 7th, Group 3 (first match at 1.00pm)

Neil Robertson (1) 4-0 Ali Carter

Ricky Walden (2) 4-0 Mark Allen

Group 3 final

Neil Robertson 6-3 Ricky Walden

Saturday 8th, semi-finals (best of 11 frames)

Ding Junhui v Ronnie O'Sullivan (1pm)

Judd Trump v Neil Robertson (7pm)

Sunday 9th, final (best of 19 frames)

Ding/O'Sullivan v Trump/Robertson

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