Reviewing completed sessions
Click any completed session to land on its full review page and see its data. This shows how it went compared to what was planned, graphs of any recorded data, split-by-split details, and a route view if one was recorded. Select any section of a graph and the numbers below it recompute for just that window, so you can zoom into one interval instead of reading a whole-session average. Together, these let you judge whether a session actually delivered the training effect you intended, beyond simply confirming that it happened.

Making sense of the numbers
Wherever the recorded data supports it, the numbers below the graph cover the full picture: volume, heart rate, pace or power depending on the sport, a dedicated efficiency group, and the session's overall training load, most of them compared directly against what was planned.
pw:hr means the most on steady, continuous efforts. On a highly variable session, with lots of surges, intervals, or stops, the ratio becomes less reliable, and you'll see a warning next to the number when that's the case.
Fixing a mismatched activity
If a recorded activity gets matched to the wrong planned workout, or an athlete's session was recorded on more than one connected device, look for the Linked activity panel on the review page. It shows which device the activity came from, and its relink dialog lets you unlink a wrong match or choose the correct recording among several candidates. See An activity got linked to the wrong planned workout for the full walkthrough, including a video of the relink flow.
Athlete feedback
After a session, the athlete is prompted in their own app to rate how hard it felt, on a 1 to 10 effort scale, and how much they enjoyed it.
Separately, they can also leave their own written notes on that same workout: a running log of comments specific to that one session, kept apart from your general conversation with them (see Messaging athletes), so feedback about a specific session stays attached to it instead of getting buried in an ongoing chat.
Your AI co-pilot reads both: the effort and enjoyment rating, and whatever the athlete actually wrote in their notes, factoring the athlete's own account of the session into its recaps and answers, genuinely giving you their perspective rather than relying on the recorded numbers alone. Looking for how to leave the athlete instructions before they start a session instead? That's covered in Building workouts.