Each promoter has a dedicated place in RaceReady's website where their results are accessible. You can find your link by logging in to your account, and going to the "Public URL" tab:

The URL on that page is the address you can share with your riders to access results from ANY of your events. Remember, for them to get to the right page from that link, the'll have to click a couple times at least. 

If you want to share a direct link to a specific event's results (so they don't have to click at all after going to the link you share with them), just navigate there first and copy the URL from that page to share instead.