The 4th annual Twin Cities Marathon, which is scheduled for Sunday September 29, has recently announced that registration for its popular 10 Mile Run (TC10) will move to a lottery system this year. The TC10, presented by Seagate, filled in 24 hours last year.  For this year's race, the field of 4,000 runners will be accepted June 30 through July 10 and selected by lottery in order to offer more runners the opportunity to register.