That's an impressive MHR for a man of your advanced age.
More so a very respectable average heart rate as well..
The average might be k. I think the max is a bogus Garmin reading.
No sign of any bogus readings from the HR curve, which moves exactly as expected with your pace and the ups and downs of the course. A very steady ticker.
2.5 mins behind the first place M70. Maybe you should try to recruit that guy for orienteering (If only to get him in a race where you can beat him).
Well, we know he is good because he also beat Lyn!