It's highly impressive. I guess it's to be expected after an astounding Cross season. I always get nervous when I see this big early times though. I always feel like it gives someone a 50/50 shot of being burned out by the end of outdoor season. So hopefully this is just off of base/XC fitness and not pounding a bunch of intervals
You nervous for Rupp? He ran 3:57 today. He's looking to peak in August.