How can I access Fortnite Arena stats?

This sounds like a stupid question, but I have no idea how to access arena stats. I’m using https://api.fortnitetracker.com/v1/profile/{platform}/{epic-nickname} to access other stats, and originally I assumed arena stats would be buried somewhere within the JSON data. Upon looking, I couldn’t find any key/value pair that resembled arena stats. Am I missing a step here? Are arena stats under a different name?

Please help.
-Finite