Crystal City is planning to transform an underground parking garage into a “distinctive cycling obstacle course” in March for the inaugural “Crystal City Diamond Derby.”

The derby will allow “competitive, casual and chic cyclists” alike to ride around an obstacle course in a massive parking garage under the Bureau of National Affairs building (1801 S. Bell Street) in Crystal City. The event will have an “edgy, glitzy” diamond theme, and participants will be encouraged to wear denim, rhinestones and derby caps.

To help organize the event, the Crystal City Business Improvement District is partnering with Dandies & Quaintrelles, the group that organizes the Tweed Ride and Seersucker Social, two annual vintage-inspired cycling events in D.C.

The derby — which is scheduled for Saturday, March 10 — will be open to both riders and spectators. For those not riding, there will be lounges and spectator viewing areas featuring music, food and drinks. There will also be diamond-themed art on display.

Registration is expected to open in early 2012.

Disclosure: Crystal City BID is an ARLnow.com advertiser.