This was a very intriguing event, and one of the top stories in 2011, as it featured one half of the double sprint attempt of Allyson Felix (USA). Nothing of note happened here in the spring, but once May hit everyone got busy. Felix started the month off blazing, opening up in Doha at 50.33 (May 6) before scorching 49.81 in Rome (May 26) to end the month. Both times she set world leads, beating Amantle Montsho (BOT) in Doha, then Monstsho, Richards Ross (USA) and Mc Corory (USA) in Rome – her Rome victory demonstrating her strength in the stretch. Prefontaine would start the month of June, and would…