Stanford University's Cobb Track & Angell Field is a world-class facility that has hosted numerous NCAA Championships, the U.S. Open and U.S. Nationals. The track is a 400 meter, nine-lane, all-weather track named in honor of the Charles Cobb Family. The track contains the Tartan Dual-Durometer 13 mm Embedded System. It was resurfaced in 2003. All field event competition venues except the hammer throw are contained within the track on the Otis Chandler Infield. There are multi-direction runways for the pole vault and long jump.