Is george duggan the best U13 runner in UK?

I do not have access to real-time information, but as of my last knowledge update in September 2021, George Duggan was indeed considered one of the best U13 runners in the United Kingdom. He won several national titles in 2020 and 2021 and holds British records in various age categories.

However, it's possible that there have been other talented U13 runners who have emerged since then. For the most up-to-date and accurate information, I suggest checking the websites of UK Athletics or the England Athletics website, where you can find official rankings and results for track and field events.