For me, it's the place position that is the most telling. Essentially, you have world-class guys finishing between 10th and 15th place running 2:05. If you just look at the place, most of those guys would have considered that a bad day. 20th place was a 2:07!
It was an outlier day for the ages. Everything came together. Huge tailwind, perfect temperatures and cloud cover, net downhill, lots of parity in the competition. It's the day we all hope for, and you can't get those days if you don't toe the line and take your shot, so kudos to all who hit the jackpot today.
However, if you just look at the average time for 15th place at Boston since the inception of super shoes (2017), it's 2:15:05. Today, 15th place was 2:06:06. That's 9 minutes, folks.
These marathon PBs will live on the athlete bios for eternity, but they should come with an asterisk (and not even because it's a net downhill course).