Blink and you’d swear the clock rolled back a decade as the top two female bib numbers at this Sunday’s Asics Los Angeles Marathon will be worn by Americans Deena Kastor (F1) and Colleen De Reuck (F3).  Both women have resumes filled with national records and championships, not to mention Deena’s Olympic Marathon medal from 2004, and Colleen’s win over Deena in the same year’s U.S. Olympic Marathon Trials in St. Louis.  But both are master’s runners now, Deena having joined the ranks a month ago, Colleen sneaking up on the senior division (50+). In one sense having Deena and Colleen as head liners is a testament to their lasting value, but in another it’s an indication of how competitive the spring racing season is for available talent. (more…)