It is the annual Twilight Invitational cross country meet.
It's a fun event, although I believe you have to pay to get in. I ran there this year, its a 5k run and at night there is a mile or so fun run where everyone dresses up in costumes. And like people said above, it's the annual Twilight cross country invite sponsored by Nike.
Sponsored by Nike! With overpriced water bottles 👍
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