Martin Brown, 64, continues to be the hardest-working man in the horse business at Evangeline Downs. The veteran rider came out of retirement several years ago and is showing no signs of slowing down. He still works diligently during training hours, and while not a force in the upper echelon of the rider standings, he has still booted home nine winners at the current meeting. Brown's latest conquest came Saturday night in the evening's seventh race when he gunned longshot Time Keeper ($164) to the front from post 14 and shook free entering the turn. Martin kept his mount to task down the lane to finish three-quarters of a length in front in the seven-furlong maiden claimer. * Friday night's fourth race is a solid nonwinner-of-three optional claiming turf sprint that is headed by Cajun Persuasion. A 3-year-old gelding who is trained by Eric Guillot, Cajun Persuasion has won his last two starts, both on the grass. He graduated to the ranks of winners here May 7 in impressive fashion and traveled to Louisiana Downs where he won an entry-level allowance in his last start. Regular rider Jason Eads will once again be in the saddle Friday night.