He won his first medal in the relay with the French team at the 2010 European Orienteering Championships in Primorsko, coming 2nd along with teammates Philippe Adamski and Thierry Gueorgiou.

[2] The same year, he won a bronze medal in the sprint at the 2010 World Orienteering Championships in Trondheim, which at the time was deemed a major surprise.

Tranchand received his second individual medal at the 2017 World Championships in Estonia.

His silver medal in the sprint event was behind multiple world champion Daniel Hubmann.

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