TheRunZone

I’m open to suggestions to improve my transition from 10k 42mins time to the Tinman half marathon running calculator 1:33:xx.
My stable is 4x1k cv, perhaps I increase it to 1200’s, or increase the reps from 4 to 6 1k.
My long runs are 2hrs
Thanks in advance

What does your overall running volume look like? Endurance improvement may be the ticket to longer term growth.