American 800m record holder Athing Mu-Nikolayev surprised many by stepping up to a much longer distance at the 65th Mt. SAC Relays. Making her return to competition for the first time since last summer’s U.S. Olympic Trials in Eugene, Mu-Nikolayev lined up in the women’s elite race on Friday night at Hilmer Lodge Stadium—but didn’t finish, stepping off the track after covering roughly three-fifths of the distance. | trackalerts