Definetly Athing! I mean both are impressive, but for a high schooler with no experience in the 600m to PR 600m, set and AR, and come within .13 seconds is incredible. Records like this are always more exciting when there wasn’t an intention to set the record. Before going into US champs, Athing wasn’t even thinking of being a medal contender, she was just happy to compete. After prelims, she was amazed with her time, and although she had the fastest going into the finals, most people weren’t even expecting her to win. For a 16 year old to win against all pros, and set all the records she did makes her worthy of this. Most people didn’t even know who she was before this, but her name is now known by track fans around the world. Brazier ran amazing, but he is a pro athlete who had already come within a second of the world record and made his intentions clear to break it. The reaction on Athing’s face when she saw the record says it all.