American pros are so afraid to look bad. They are afraid to race as all races results are scrutinized. Any of them miss a few training runs and they get in their own heads so they drop out. Now that they changed the rules and the olympic marathon time standard was dropped, there is little incentive for some them to try and run a fast time. We can all look forward to these guys slugging out 212 to 213 pace in February. Yawn.