With all the topics, is there a way to see a feed of posts from certain sub forums but filter out the others?

Basically, I want to see a feed comprising the tri, cycling, swimming, road racing, races, etc but without seeing Jobs, classifieds, etc.

Anyway to set up a feed like this?

Go to a category, hit the bell icon, and set it to muted:

You can also do this in Preferences > Tracking, and at the bottom of individual topics.

Categories and topics that are muted won’t show up in listings anymore.