The physical changes Sorority Rush has gone through over the past several months have helped make her a better horse. She has stepped up in class with success and is the one to beat in Friday&rsquo;s eighth race at Fair Grounds.\r\nThe first-level allowance for fillies and mares at six furlongs is one of two co-features on the program. The card opens with 2-year-old fillies going about a mile on turf, among those in the allowance Suave Voir Faire, who was third in the Grade 2 Golden Rod at Churchill Downs.\r\nSorority Rush won a pair of claiming races this past summer at Louisiana Downs, but in the fall began to take her game to a new level. She won a $17,500 optional claiming allowance at the track in September, defeating stakes winner Moneyinmywranglers.\r\nSorority Rush then turned up at Fair Grounds, and was a close second in a first-level allowance sprint Nov. 25. For the effort, she earned a Beyer Speed Figure of 86, which is the best career number in the field Friday.\r\n&ldquo;She seems to be maturing finally, getting a little more body to her,&rdquo; said Bob Young, who trains Sorority Rush for Fletcher Properties. &ldquo;She&rsquo;s starting to fill out, and I think that&rsquo;s what&rsquo;s made her a little stronger. She was a little thing for a long time, never carried a lot of weight.&rdquo;\r\nBut Sorority Rush&rsquo;s build has long belied the size of her heart. She has compiled a record of 4 wins, 4 seconds and 4 thirds from 15 starts, a significant resume for a filly who is still 3.\r\n&ldquo;She just gives you 100 percent,&rdquo; Young said. &ldquo;She runs her race every time.&rdquo;\r\nSorority Rush will break from post 6 in the field of six, and might get a stalking trip behind the rail-drawn Christina&rsquo;s Dream and the comebacking Exhilarating. Richard Eramia has the mount on Sorority Rush, who next month could advance to stakes competition in the $50,000 Yellow Rose at Sam Houston Race Park.\r\nExhilarating will be making her first start since July, when she won a maiden special weight at Churchill.\r\n◗ Patty&rsquo;s Pride, who has run second in two turf route stakes, returns to both the allowance ranks and the grass in the first race. Her rivals include Fun Filled, whose dam, Confessional, was a Grade 1 winner on dirt who also went 8 for 12 on turf.