|Games of the Small States of Europe|
|2017 San Marino||Individual|
|2017 San Marino||Team|
|2017 San Marino||Mixed team|
Henckels competed at the 2004 Summer Olympics in men's individual archery. He was defeated in the first elimination round by Chen Szu-Yuan, placing 56th overall. At the 2012 Summer Olympics, he was again knocked out in the first round, losing 6-2 to Rick van der Ven.
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