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It would be really helpful to have some input from the seasoned runners out there, or indeed from anyone who’s experienced the same...
Last year bought Mizuno Wave Rider 7’s. Ran 500-800 miles in them, including an Ironman marathon. No trouble. Replaced them with identical pair. I run in the same socks. I have the same running pattern. Yet I’ve started to blister to the rear of my right arch.
Historically, I’ve had similar problems further forward in the arch but that was mitigated by buying a shoe with a wider toe-box.
Kicked out 11 miles today. Arch is now red raw. Two HMs coming up in next fortnight. Then Paris & VLM in April during the space of a week.
Any guidance on how to address the issue would be HUGELY appreciated.