10k 34:34
HM 1:13:06
2 weeks specific run training for HM ramping mileage to 63k/wk. (actually not gradual at all)
Suspect with such "long" race distance wrt his 2 weeks run training, will need rather long recovery duration, even if he didnt kena any injury.
Before that only 1 run per week of 5-10k (never said was it easy or threshold or what but slightly faster than 5 min/k pace) and the week before the 2 wks training never even ran.
His HR ok (aerobically), ok issue cited was that muscularly, he could not hold onto the faster pace he was hoping to hold, coz 2 weeks of gradual ramping up to 63k/wk is still woefully insufficient for that kind of timing.
Regardless, his FTP power is also quite imbalance, indicating both rather strong strength (cycling muscles) and more importantly great cardio fitness and lactate clearance etc.