Gislebertus landed his 12th open race of the year in the final of the Monkey Maiden Standard over 415 metres at Harlow on Wednesday.
Belinda Green’s runner flew out of the boxes and was soon clear to beat Whitings Gift by just over three lengths in 25.78sec.
Keith Crew’s Doreens Girl clocked a fast 37.35sec for the 592 metre trip when getting up close home to deny Philfen Blue Max by three quarters of a length.