But I'm having a hard time believing the second
Dude is fast for sure, but I haven't been able to find times on him from previous years easily
Which is weird, people definitely improve, but this is such a level of improvement that it strains credibility

Here's the finals from last year.
Unless he was injured or transferred from out of state you're telling me that dude went from not being able to make the finals the year before to all time times in a year
https://www.uiltexas.org/tournament-results/track-field/2018/index.htm