Nailed it.
When the event started in 2018 they decided to use the 10th hole as the 18th for logistical reasons. They kept the same layout this year even though there were no fans allowed (and therefore no need for a grandstand). https://golfweek.usatoday.com/2018/04/22/lpgas-l-a-stop-finishes-on-a-crazy-little-par-3/
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