So clearly we're not just looking at the most well rounded athlete, but the best athlete period with whatever it was that athlete did, so those of you who tried to argue for someone being good at sports they weren't playing kinda missed the point.
Greatest of all time has almost certainly got to go to Michael Phelps.
A few of those basketball players I could see the arguments for but I think Phelps has got this spot.
He set his first world record at just 15 years old, also going to his first Olympics just a few months prior and placing fifth (at 15 years old)
In the 2004 Olympics he won multiple gold medals and had already won many many many world records.
In 2008 he did the unthinkable by winning gold in eight out of eight events in the Beijing Olympics, seven of those were world records by the way. Nobody has ever been that good. Ever.
Some of his individual records lasted a very long time (up to 15 years) and he still has two relay records as far as 50m long course pools go which is the main pool size used for almost all international competitions (of course counting the Olympics).
After 2008 he continued breaking world records for a while and raced in his final olympics in 2016, 16 years after his first olympics, and I'm sure most of you don't know much about swimming, but to go to the olympics at over 30 years old for the USA in swimming is quite rare (definitely not unheard of though) and he still won multiple gold medals that final year.
Overall his career ended with 23 olympic gold medals and 28 total olympic medals, unmatched by anybody in any sport ever; he redefined swimming and broke more world records than anybody could ever hope to match while taking the sport to the next level.
I understand some of those accolades are just by nature unachievable for runners and other athletes based on the differences in all those sports, but the way he changed the whole sport while smashing record after record after record in all sorts of different events will forever secure him in my mind as the greatest.
Honestly I understand Michael Jordan or Wilt Chamberlain being in this conversation too, but I (being a serious runner) can't think of anybody within running who has been dominant enough to match the level of Phelps, and this goes for triathlons, pentathlons, decathlons, and all track or field events as well.