Through-hike records are typically divided into supported vs. unsupported.
In a supported hike, you'll have a partner (or even a team) that manages your heavier gear, resupplies you, and takes care of campsites/lodging. Sometimes that support just meets you at designated checkpoints, or they can hike alongside you.
This is clearly a supported hike, and I imagine he had one or more companion hikers throughout the whole thing, given his age.
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u/nickelundertone 18h ago
Who carried the rest of his gear?