This for Anderson will send out a message to the remaining chasing pack who will see him as a big favourite to lift the title come tomorrow.
He defeated Wattimena 10-6 with a 104.7 average. It was a polished performance from 'The Flying Scotsman' who also hit nine 180's to defy a 97 average from the rapid Dutchman.
It helped Anderson though playing a player of Wattimena's pace so it will be an interesting test for him if he plays a slower player in the Quarter-Finals.
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UK Open Prize Fund breakdown.
Evening Session (7pm)
Fifth Round
Main Stage John Part 10-8 Mervyn King
Gerwyn Price 10-9 Paul Hogan
Gary Anderson 10-6 Jermaine Wattimena
Rob Cross v Krzysztof Ratajski
Board Three
Robert Owen 10-7 Ian White
Steve West 10-9 Michael Smith
Board Four
David Pallett 10-7 Kim Huybrechts
Corey Cadby 10-7 Chris Dobey