You might want to clarify your thread title. In the context of this forum, at first reading I assumed DL meant "draft legal", e.g. that Yee ran 13:29 for 5K at the end of a DL tri. On clicking on the link, I see now that DL here means the "Diamond League" track meet. While some other STers may know of Diamond League, "DL" is still ambiguous. If you changed your thread title to "Triathlete Alexander Yee just ran 13:29 on the track for 5000 m", the meaning would be clear. Just a suggestion...:)
Also, it appears that a 13:29 5K implies around 28:00 for 10K, which would be 30 sec or so faster than Ali Brownlee ran at that Stanford meet. So Yee might be the fastest tri guy.
"Anyone can be who they want to be IF they have the HUNGER and the DRIVE."