Half Marathon Over Under

I mean, you have a recent 5k & 10k that align perfectly. That shows sub-1:12 fitness but some of your workouts look a little stronger. How did the 9 @ 5:23 pace feel? Was the plan to do a 9 mile tempo @ half marathon pace? Usually you'd want to break it up into something like 3x3 miles. 9 miles is a lot of work at half marathon pace. No reason you can't hold that in a race. A half marathon in June can be a bit dicey. You might be ready for something closer to 70:00 but that effort might be closer to 72:00 if it's hot/humid. Find another half this fall no matter how the race goes.

The workouts in week 8 and 9 are overkill. It makes me think that you may've left your race in training.

If not, then you should certainly be capable of running under 70 minutes. If you can hold 5:23s for 9 miles at the back end of a long run, then when fresh, tapered and in a race environment, you should be able to run faster for 13.1 miles.

Also, 3 weeks is a pretty long taper for a half marathon (however, given the fatigue you must've accrued in week 8 and 9, it may be for the best). I'd suggest a shorter taper in the future, with less "monster sessions".

Didn’t mean to write 3 week taper. I’ll cut mileage the week of. Faster workouts the next 2 weeks, taper the 3rd week