WA told LetsRun: "Following a thorough analysis of athletes intending to participate in more than one event it was determined that the quota would allow for some additional athletes to participate in the marathon."
Korir would likely need to run 59:49 or faster in Lisbon to improve his spot on the Road to Paris list. He can cement his Olympic spot by running 2:08:10 or faster in Rotterdam on April 14.
It's the 3rd straight year the women's AR has gone down in Houston. Ethiopians Jemal Yimer (60:42) and Sutume Kebede (64:37) won the races. Rupp ran 62:37.