Rioli starred as a small forward when Richmond won three flags between 2017-2020, but he was moved to defence at the tail-end of 2021 after his form started to wane.
The move proved to be a masterstroke, with the 25-year-old's creativity and speed becoming a major weapon.
Rioli, whose new deal at Richmond runs until the end of 2027, has no plans to move away from the back line.
"I'll stay half back this year," he said.
"I played some consistent footy that I'm happy with.
"Half back is probably the position I really suit and hopefully I'll get better from there."
Source: West Australian