Defending Stobart Super League champions Leeds kept alive their hopes of another Grand Final appearance after bringing Wakefield's seven-match winning run to a halt with a 42-20 victory in the elimination play-off.
The Rhinos trailed three times before finally getting on top of their gallant opponents and finishing with a flourish with a Ben Jones-Bishop hat-trick to earn a trip to Catalan Dragons in next Friday's preliminary semi-final.
Former Leeds Grand Final winners Richard Mathers, Lee Smith and Ali Lauitiiti all scored tries as the Wildcats played their full part in a thoroughly entertaining match and threatened to spring a shock before finally running out of steam.
Tommy Makinson played a starring role as St Helens moved through to the semi-finals with a 28-6 victory at Warrington.
Winger Makinson touched down for two tries and added four goals and the Saints pack also played a key role in demolishing Challenge Cup winners Warrington.
Iosia Soliola, James Roby and Francis Meli also crossed for Saints with Brett Hodgson claiming the sole try for the Wolves and converting it himself.