Pete on Nostr: npub1s5a4d…e4m9c fedibikes group npub1r2per…m2f4x I've no idea if they're happy ...

npub1s5a4d5tt0jr4j9z4dz7nf0erephvwwkg7fafj96s53ermml3j3nqxe4m9c (npub1s5a…4m9c) fedibikes group (npub1hxh…q0tp) npub1r2perf2237crr7a8cpunaa7rv8dj592tt0su334f2zmepdhdfw3qam2f4x (npub1r2p…2f4x)
I've no idea if they're happy for them to be used outside the tracking site but https://www2.followmychallenge.com/live/tcrno9/data/ridersArray.json and https://www2.followmychallenge.com/live/tcrno8/data/ridersArray.json might be what you're after?