Williams put in a poor performance and was beaten 5-1 by Colin Osborne; while Gilding was edged out by Nathan Derry.
Meanwhile, John Part, Conan Whitehead, Glen Durrant, Anastasia Dobromyslova and Royden Lam are through to the next round.
Click here for more information on the
PDC UK
Q-School. The Q-School Order of Merit after Day Three can be found
here.