Honestly, look at Rupp in the interview video. He looks like he CLEARLY was affected by his allergies, his eyes were all puffy and his face and throat were red and irratated. It's also not an excuse, it's just a valid reason why he was not at his best on the day. He's obviously very allergic to pollen, and being that running is a hugely aerobic sport, obviously that's going to have an affect on him. Regardless, he still ran OK and this isn't where we want Rupp running well. We want him at his best at U.S.A's and at Worlds in the final.
It was hot, his allergies were acting up, and he's clearly not super sharp right now. Guaranteed he'll look better at USAs.