Mechling competed in the 800 metres. He placed fourth or fifth in his first-round (semifinals) heat and did not advance to the final.
- De Wael, Herman. Herman's Full Olympians: "Athletics 1900". Accessed 18 March 2006. Available electronically at .
- Mallon, Bill (1998). The 1900 Olympic Games, Results for All Competitors in All Events, with Commentary. Jefferson, North Carolina: McFarland & Company, Inc., Publishers. ISBN 0-7864-0378-0.
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