This video shows a one arm press from straddle to one arm handstand on hand balancing canes done 11 times.
You can skip to about 1:20 when the action starts.
Judging by the reactions and build up it must have been a record at least among this group.
One Arm Press is a super advanced skill. Doing it on two arms is outside what most people can do, let alone on one.
Thanks to Dunte for sending me this video.