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Every second of moving time, binned by how high you were and how steep the ground was. Each row is a slope category (warm = climbing, cool = descending); the brighter the cell, the more time you spent there. Climbs sit up top, descents below; low elevation on the left, high on the right. Hover any cell.
Your pace in each slope category, one line per day — lower is faster. Terrain is held constant across the x-axis, so a line dropping over the days means real fitness, not an easier route. Watch the climb side.
Average heart rate in each slope category — higher is harder. Read it alongside the pace chart: a day that’s faster and lower here is free fitness; faster but higher means you paid for it in effort.
The tell for the Day-4 mystery. On flat & gently-descending ground (slope held constant), this is your HR at each running speed. Days 1–3 rise with speed, as they should. Day 4 sits ~15 bpm above them at every speed — same ground, same pace, same cadence, more heartbeats. That’s a whole-body offset (fatigue + heat), not something you did with your legs.
Heart rate and pace combined into one number — how many heartbeats it took to cover 100 m of each slope (avg HR × pace). Lower is more efficient. On a given slope, a day sitting lower spent fewer beats for the same ground — the cleanest fitness signal, since it cancels out both terrain and how hard you pushed.
Steps per minute in each slope category. Your turnover is a metronome — near-identical across days for a given slope. The one exception is Day 4’s climbs, where cadence jumps: you were jogging gradients the earlier days power-hiked.
The other half of speed (speed = cadence × stride). Since cadence barely moved, the faster you went the longer your stride opened up — clearest on Day 4’s descents, where you reached over the ground rather than just turning your feet over quicker.
Two form-quality metrics Garmin records while running: ground-contact time (how long each foot stays down) and vertical oscillation (how much you bounce). Lower is generally springier, more economical running — and both trended down across the trip.
Share of moving time in each slope category. Cool = descending, warm = climbing. Day 2 was the big climbing day; Day 4 leaned downhill.
Your moving time split by ground speed: slow hiking (slower than ~14 min/km), fast/power hiking (9–14), running (5:45–9), and fast running (quicker than 5:45 min/km). Standing-around time is excluded. Day 4 was mostly running; Day 2 was a hiking wall.