Please don’t make the assumption that the closest tee to the green you are playing is the furthest tee to the next green.
+1000
When you consider backtracks, that 800 yard difference ends up being much larger. Just look at The Old Course and you'll see that the lengthening of the golf course - forced upon it by the evolution of insufficiently regulated golf equipment - has ravaged the flow of play. Nearly every current Open Championship tee requires a walk backwards of some 50 yards, which of course must be re-covered after that next tee shot.
Anyone who paid even remote attention to the 2022 Open knows how terrible the pace of play was the first two days. This is a big part of the reason.
What takes longer - walking 6,800 yards or walking 7,600 yards?
How long does it take you to walk 800 yards? 10 minutes max?
And the top pros have fewer stops on average.
If the first group of the day is suddenly 10 minutes slower, it's affecting the later groups by 20+ minutes more.
The pros had fewer stops when golf courses were hundreds of yards shorter, too.
What takes longer - walking 6,800 yards or walking 7,600 yards?
If one is walking those distances without mandatory stops, then the answer is obvious.
However, if one is waiting after every shot, its basically negligible.
Huh? The aggregate extra walking time is still part of the process of physically moving from 1 tee through to 18 green. And when you multiply it by 100+ players and the various dispersions of the shots that they hit, it obviously takes more time.