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14:38. Holy crap.
Easy...
...and then I start the second lap.
When I ran a parkrun with MiniGB (5 years old, she'd absolutely insisted on doing one and we can't make Junior parkruns, she managed ~30% of it jogging and the rest walking) I was very impressed by the leading 5 runners (all sub-17) as they lapped us each of them ran past giving her some encouragement ("well done", "keep going", etc).
I always start parkrun too far back, not because of space (we've got ~300m or so before the path thins to 3 or 4 people wide), but mentally I prefer to just slowly pick people off over the course of the run.
A few weeks ago, the last 17 year old I witnessed sprint off ahead of me in a parkrun ended up firmly in the (a) camp. Alex Yee, member of my club, set the all-time parkrun U20 record at Dulwich Park with a time of 14:38, one week before winning the Edinburgh Cross-Country International U20 race. Mental! Nice chap as well.