I mean it makes sense... Gwen pulls out of triathlon, commits to run training, goes all-in on the marathon... and only improves less than five minutes vs her debut at NYC just 9 weeks after rio. NYC being the harder and slower course.
I think we wanted to believe there was a lot more run potential there,
but it seems she was pretty well optimized at Rio.
And all the Tri peeps are still going to think that. Is there better than 2:36 potential? I believe so. I think GJ can challenge sub 2:30 but Olympic gold never. As far as the current state of US marathoning I would not put any money on her making the team.