A textbook one handed Backloop by Philip Köster. It is even a bit stalled.

Backloop Philip Köster
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Dope!
yes, one hand , you can change the name 🙂 actually is not the right one to put in the one hand group though ,
good job felix
NICE
And it is one handed – you can see in slo-mo howe he grabs the boom before he starts the rotation!