Sometimes it can all come down to one ball, as looks to be the case in the Michael Holt v Dominic Dale match.
Dale was looking good for an 8-7 lead in frame 15 after clearing from the yellow but missed the black along a cushion.
After a protracted safety battle, Holt potted it and now looks a different player. He's just made a very well worked 92 for 9-7.
In the other match still on, it's hard to see Mike Dunn beating Nigel Bond.
Dunn missed the blue by such a distance in frame 15 that he burst out laughing.
Bond himself missed a slightly awkward black but Dunn failed to pot it and left it on for Bond to go 9-7 up.