the answer is yeah duh, if two people are less than .7 seconds from it (and my run in particular definitely has 0.7 seconds of timesave in it) then yes of course it's possible

i'm just wondering if i should spend my summer going for it

It's definitely 100% possible, if you have the motivation to go for it then by all means, hopefully it shouldn't take you very long so you can spend your summer achieving other goals you have in mind as well :)