Run — 2026-07-29

2.01 km in 10:46 — 5'21" pace at 158 bpm. Short sharpie in 29°C heat. HRV at 140ms (all-time high overnight) but body felt heavy — late breakfast, coffee, short buffer, summer heat. Solid output for a rough start.

Data

Metric	Value
Distance	2.01 km
Duration	10:46
Avg pace	5'21" /km
Avg HR	158 bpm
Max HR	171 bpm
Cadence	169 spm
Steps	1,830

Metric	Value
HR recovery (2min)	22 bpm (dropped 22)
VO₂Max	43 ml/kg/min ✅ held
Route	Szabadság tér / Lipótváros (District V)
Stride	110 cm

HR zone distribution: Aerobic ~2 min · Extreme ~2 min · Anaerobic <1 min · Fat-burning <1 min · Warm-up <1 min

HR: Avg 158 · Max 171 · 163 bpm at end of run

Sleep — Night before

8h 3min · 00:31→08:35 · REM: 11% · Deep: 31% · HRV: 140ms 🟢 (all-time high!) · Resting HR: 51 bpm · Score: 87/100

HRV at 140ms is unprecedented — 5ms above your previous peaks of 135ms (Jul 5, Jul 27). Resting HR at 51 is normal. Deep sleep 31% (2h 30min) is solid. REM at 11% — classic weed effect (same as Jul 20). Despite being a bit high, HRV hit all-time levels. The late bedtime (00:31) pushed the wake into deep sleep territory → sleep inertia → that groggy, heavy "barely woke up" feeling. See Sleep/2026-07-29.

How it felt

New day new run. Did not feel really great — I could barely wake up, late breakfast, coffee, and then probably not waiting enough before the run. It wasn't terrible, but I didn't feel as light. Breathing was on the rougher side — I'm mouth-breathing after just a few minutes. 29°C, very warm.

Comparison

Metric	Jul 18 (2K)	Jul 20 (3K PB)	Jul 23 (6.5K)	Jul 27 (3K PB)	Jul 29
Distance	2.01 km	3.01 km	6.52 km	3.01 km	2.01 km
Duration	12:20	17:55	42:47	17:02	10:46
Avg pace	6'08"	5'57"	6'34"	5'40"	5'21" 🚀
Avg HR	147 bpm	158 bpm	160 bpm	156 bpm	158 bpm
Max HR	158 bpm	170 bpm	176 bpm	180 bpm	171 bpm
Cadence	172 spm	171 spm	165 spm	164 spm	169 spm
VO₂Max	42	42	43	43	43 ✅
Sleep HRV	107ms	107ms	111ms	135ms	140ms 🟢
Temp	~24°C	~24°C	24°C	~27°C	29°C

VO₂Max progression

Date	VO₂Max
Jun 29	39
Jul 5	40
Jul 10	41
Jul 18	42
Jul 23	43
Jul 27	43 ✅
Jul 29	43 ✅

Verdict: Here's the interesting thing — pace of 5'21"/km is your fastest average pace in any recorded run, including the 3K PBs. On a day you felt terrible, short of sleep, with bad digestion and 29°C heat. How? Because 2.01 km is a short distance — 10:46 total — and the body can sustain a higher intensity for shorter bouts without the aerobic fatigue that compounds over longer runs. Your Jul 18 run (also 2.01 km) was at 6'08"/km — today you were 47 seconds per km faster at +11 bpm HR. That's a real performance gain. But the effort indices tell the story: HR zones were dominated by Aerobic (~2 min) and Extreme (~2 min) — you were redlining for half the run. That's not sustainable for a 3K+, which is why the 3K PBs come out to 5'40-5'57".

The HRV paradox continues: 140ms (all-time high) → objectively the best cardiovascular recovery you've ever had → but execution (late breakfast, short buffer, 29°C) undermined it. The mouth-breathing within a few minutes is the biggest flag. At 29°C, your body is diverting blood flow to skin for thermoregulation, which means less efficient oxygen delivery to working muscles. Mouth-breathing is your body's way of increasing air intake to compensate. Combined with coffee (vasoconstrictor + diuretic) and not enough digestion time, the gut was competing with muscles for blood flow. This is a classic "did everything wrong before a run" pattern, and the data reflects it: a 171 max HR at only 10:46 total duration.

VO₂Max holding at 43 — now stable for 3 runs (Jul 23, 27, 29). The rapid climb from 39→43 over 8 runs has plateaued, which is expected. The next jump will need longer sustained threshold work or consistent pace improvements at distance.

HR recovery at 22 bpm is solid — back in your 21-25 bpm comfort zone after the slightly suppressed 18 bpm post-festival. The recovery is real.

The takeaway: you showed up despite wanting to sleep in, ran the fastest per-km pace you've ever averaged, and your body delivered on the 140ms HRV even though you didn't feel it. Short, hot, not the most enjoyable — but the numbers say your fitness is in a good place. Just work on the pre-run routine: earlier bedtime, proper digestion buffer, maybe avoid caffeine before warm-weather runs. 🏃

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