Audax rides

Yes.

http://ebasic.easily.co.uk/04C053/02C00B/rrty.htm#FAQ5

Can I claim an RRtY ... using Perms?
Yes, we've had successful claims from people riding just Perms, and others using just Calendar events - it's a debatable point which might be the more challenging method. Most riders use a mixture of Perms and Calendar Events.

(DIYs are just a type of Permanent event).