A 20th victory in the senior TT for John McGuinness saw Michael Dunlop miss out on his record-equalling fifth win of the event.
But a crash earlier in the day marred proceedings when 10 spectators were injured.
The "Morecambe Missile" ended the day on top of the podium, finishing 10 seconds ahead of Dunlop.
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Greater Manchester Police said "inquiries are ongoing to fully understand the circumstances of the incident."
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