Sports Stack Exchange is NOT a forum. Some kinds of questions should NOT be asked here:
- Who is the better [team/athlete/etc.]?
- Who will win the [event/award/etc.]?
- Requests for sources/research
- Fantasy Sports
- Recreation, Fitness, or Outdoor activities
For the last item, recreation/fitness link here, while outdoors links to the outdoors SE site.
The biggest difference is what is on topic there, such as rules for a sport, etc., would not be on topic here. Bicycling, running, swimming can be sports, but on this site the answer would focus more on the phsyical and training aspects. If you ask a question such as "How long are swimmers allowed to be underwater during a backstroke event", that would be off topic here, but on topic on sports. "How to angle my hand for effective entry in a backstroke" would be off topic there, but on topic here.