Wet ground is hard to tell for sure.
The only way I know to confidently determine sex/age of a deer track is to measure it. Dr. Ken Nordberg has a few good books out there that detail the process. The guy is a wildlife biologist and researcher that developed correlations between track size and sex/age over decades of study.
Basically, from tip to dewclaw, if you’ve got something in the 5.5″ range, you’re talking a mature buck that’s 3.5 yrs. plus. If you’re measuring just the hoof, 3.5″es long is a mature buck.
I know it works as I’ve measured quite a few tracks over the years after we’ve gotten trail cam pics of the deer that made them in scrapes. For unusually large/old deer, the hoof part will run in the 4.25″ range, and 6″+ from tip-dewclaw.
Joel