I can't help but laugh every time he says "unbroken"
I guess it's good he's improving on the extra rests inserted willy nilly but doing the workouts as written feels like entry-level stuff.
I was getting cautiously optimistic or at least genuinely curious whether he's on the verge of a breakthrough. But then I remembered something from when he ran his half, which had the eerily flat HR with a positive split. When I saw that, I pulled up the same race from the year before to compare HR. His workout today rang a bell.
He started that race slower and sped up, finishing the last 3 miles in 5:28, 5:25, and 5:18. But with favorable GAPs of 5:23, 5:20, and 5:15. His HR for those 3 miles: 164, 165, 167.
Compare to the workout today, looking at where his HR levels off for the 2k's and then for the 1k's, I see it's around 164-165 for 5:25 pace and 167 for 5:15 pace.
Basically the same from the last 3mi of his HM from a year ago.
Of course HR isn't an exact science. But as far as any definitive sign that he's made a leap in fitness, I'm not seeing it.
All his hope rides on the taper unlocking another level. But that leaves him in a tough spot of not knowing what pace he should run on race day. If I were him, I'd go out no faster than PR pace (5:50/mi) and hope to negative split for a PR. But we all know that NO:TIME is 2:30 and he's going to be looking for splits in the low 5:40's.