Wikipedia is rather long on Chris' awards (for being 'stunning & brave'), rather short on times & achievements:
en.wikipedia.org/wiki/Chris_Mosier
I looked up a result listed as super-duper impressive, wow I can't believe a transman qualified for men's triathlon, it's so amazing:
register.cajuntiming.com/results/default.aspx?event=39014&r=13618
Chris' time was 1:02:06.8
The leading female time, in the same age group was:
Kirsten Sass in 1:02:29:1
Kirsten is "Married to husband, Jeff, and the mother of children ages 6 and 5", so obviously a biological female.
Both times were smashed by 17/18 year old boys, who scored times as low as 55:45.
I think it's fair to say that Chris is the beneficiary of heavy testosterone doping, given facial stubble, etc., and without this presumably Kirsten would have scored the better time.
Note that this result qualified Chris as a male entry to the ITU Sprint Triathlon World Championship, BUT in the 35-39 category, which wasn't particularly competitive here. Chris just needed to come in the top 10 with a time not more than 16.7% longer than the winning M39 athlete.
If we look at, say, the marathon, the 2017 times at London were:
Winning male: 125:48
Winning female: 137:01
This is a difference of 9.2%.
So by the triathlon qualification rules, the world's best female (non trans, biological female who has given birth) runners COULD compete in elite male races. And, with male pacers, women would get better times. But they'd never, ever win, they'd get no prize money or publicity.
So it's really not surprising that Chris manages to score middle-of-the-pack results in regional male races. Because elite non-trans women could do that too.
But win? Nope never, hasn't happened, can't happen, and won't happen.
A shitload of awards for being stunning & brave, and cash from Nike too. Trans is BIG business.