Registration for the December MetroPCS White Rock Marathon opens June 1. The price is lower if you register early, before July 31, by the way. To celebrate the onset of marathon training season, the WRM folks will host a 6.4 kilometer race at the Bath House at White Rock Lake Thursday, May 31 at 7 p.m. Why 6.4 km. you may ask? It’s a beer-sponsor thing. The DWRM Kickoff 6.4 is presented by Miller 64.

The race is limited to 500 participants.

Runners and walkers will receive a technical training shirt and entrance into a post-race party, featuring Miller 64 aplenty, I assume. Wear your favorite Dallas White Rock Marathon race shirt to be entered in a drawing for a free 2012 full or half marathon entry.

You can register for $20 race day at 6 p.m. or online for $15 online.

The new White Rock Marathon course is set to be publicly viewable by June 1.