Inspired by Joe Mac's thread I got to thinking about how many days in a row elites could run a sub 4. Obviously I'm not talking about 140 mile weeks then a quick mile, just trying to run sub-4. With heats, obviously many have done 3 times in the Olympics (assuming the heats, semis and finals were on successive days, but what could a fit El G do? Geb? Kenny? Who else? Do you think some are simply better suited for this? I'd love to hear Joe's take on this as well. Could anyone do 30 days? What do YOU think?