The parent above is "gatekeeping" by saying that even though the runner ran the fastest marathon, it wasn't an IAAF-qualified marathon. Kipchoge currently has

The parent above is "gatekeeping" by saying that even though the runner ran the fastest marathon, it wasn't an IAAF-qualified marathon. Kipchoge currently has the WR for both. The whole controversy for the "fastest marathon" is they kept cycling fresh/new runners during the run for Kipchoge to draft off of and conserve energy. These pacers (like the aforementioned runner in the HN article) provide an aerodynamic boost.