Robbie Callister will defend his unbeaten record at this Sunday's End to End Race Walk.
He has won the event every year he has entered since the western course was introduced in 2002.
This year's entry of 342 is 37 down on last year's record.
Organisers will be hoping for better weather conditions than 12 months ago, when the race was halted at Eary Cushlin due to poor visability.
Other top walkers who have entered include Rosey Crellin, Michael George, David Griffiths, Jackie Kennaugh, Dermot O'Toole, Ray Pitts, Irene Taggart and Julian Thomas.
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