Every activity you sync from a connected device or app shows up in your activity list. This is where you review what you've recorded and check how each effort was credited.
Your activity list
Your profile shows your most recent activities — currently the last 20. Older activities aren't listed, so this is a recent-history view rather than a complete archive. Each entry shows the basics: type, distance, duration, start and end time, and which completions it earned.
Your completed routes are tracked separately and aren't limited in the same way.
Your activities are visible only to you
Profiles on Twenty Peaks are private, so your activity list is visible only to you. Other riders can't open your profile or see what you've synced. If a teammate says they can't see your activities, that's why — nothing is misconfigured. See Profile privacy.
Your event participation history
The events you've joined are tracked separately from your activities. Your event participation history is its own list, showing the events you've registered for — rather than appearing mixed in with your synced activities.
That history is yours alone — nobody else can browse the full list of events you've taken part in. Each event does, however, have a public participants list, so anyone looking at a particular event can see who registered for it, you included. The difference is the direction: people can see who's riding a given event, but they can't work backwards from your profile to everything you've entered.
Related: Profile privacy · My completion didn't show up