Luke Humphries beat Gerwyn Price 6-4 after losing the opening three sets, ending a 16-month wait for a PDC major title.
BBC Sport reports two rounds of price reductions for the London opener, while availability differs sharply across this year's three games.
Novak Djokovic defeated top seed Alexander Zverev 4-6, 6-4, 6-4 in the China Open quarter-finals. The six-time champion will next face Daniil Medvedev.
Novak Djokovic recovered from a set down to reach the China Open semi-finals, where he will face Daniil Medvedev.
Lauren Hemp scored twice as Manchester City overturned two Arsenal leads to win 4-2. The champions have won all five of their opening WSL matches.
Manchester City recovered from two deficits to beat Arsenal 4-2 at the Etihad Stadium. Lauren Hemp scored twice as the champions maintained their perfect start to the WSL season.
