THE OAKS' James Walker, joint halfway leader, placed fifth in the prestigious Lytham Trophy at Royal Lytham & St Annes GC.
He carded rounds of 74 66 79 73 to finish eight shots back of winner Alfie Plant, of Sundridge Park (67 73 74 70), who last year finished runner-up to Sheffield's Joe Dean in the English men's amateur championship at Alwoodley GC.
Yorkshire champion Jamie Bower, of Meltham GC, finished tied 18th at Royal Lytham (74 74 75 75).
Walker's hopes foundered on a poor beginning and finish in round three - dropping five shots in the first six holes and four in the last five.
But his top-five placing accentuates the fine form that has also seen him win the Selborne Salver this month and reach the Spanish amateur championship semi-finals in March.
Five Yorkshire players did not make the 36-hole cut.
Hull GC's Steve Robins (76 78) and recent Lindrick Scratch Open winner Ben Brewster (Wheatley GC) with 79 77.
Shipley GC's England A international Will Whiteoak shot 159 (80 79) and Rotherham GC's Jonathan Thomson 162 (76 86).
Dutch Junior Open champion Dan Brown (Bedale GC) was disqualified for signing for an incorrect score on the final hole of his second round.
Fulford GC's Charlie Thornton placed 13th with rounds of 75 76 74 76 in the Fairhaven Trophies event, in which Germany's Nick Bachem triumphed with a 287 aggregate.
Hallamshire GC's Barclay Brown (79 72 76 79) and Charlie Daughtrey, of Rotherham GC (72 78 75 81), tied 24th.