He ran 9.8x, not all that fast, even though that was a PB for him.

A 9.8x won the finals. That’s a huge drop-off compared to the
previous Olympics and the world championships. Trayvon was basically
running 9.7x prior to the Olympics.

An Italian runner won the finals. They have no history
of winning the event. That’s how slow the finals were.
.

But the women? They were jogging 10.7x in the heats
and ran 10.6x in the finals! God damn Olympic record was
set, and the previous record was doped.

That’s a huge increase in speed.