Magee's investment on Si Senior reaps dividends Si Senior (16/1) and Rory Cleary got first run on Cardinal Zin to win Sligo's Irish EBF Auction Series Maiden over the extended five furlongs. Si Senior came to claim Tai Tam Bay entering the straight and soon kicked on. Cardinal Zin (10/3f) began to make headway in third and stayed on strongly in the final furlong, but was half a length in arrears at the line. Tai Tam Bay gave best in third at 9/1. Trainer Patrick Magee said: "Seamie Heffernan got off her at the Curragh and said she was a winner waiting to happen. We were a little disappointed at Navan, but she still ran a good race there. "I would have been happy with a place, but she's a smart filly and her work has been super. We got her cheap and I don't think you'll get a Bungle Inthejungle as cheap at the Sales this year with the results he's after having with his two-year-olds." "She's still quite weak and we won't be in any rush with her. She'll be a better filly next year." Additional reporting by Mark Nunan