Shumway came back with a strong leg .
Shumway ran a personal best 47.06 to win his section of the open 400 over Washington State 's C.J. Allen in a matchup of the Pac - 12 's top 400 hurdlers last year .
Shumway , who ran a personal best 47.06 to win his section of the open 400 over Washington State 's C.J. Allen in a matchup of the Pac - 12 's top 400 hurdlers last year , came back with a strong leg .