Complex sentence: He won several medals at the Canoe Slalom World Cup in 2012,2013 and 2015, placing second overall in 2015, and qualified for the 2016 Summer Olympics in Rio de Janeiro where he finished in 17th place in the K1 event.
Split into simpler sentences: He won several medals at the Canoe Slalom World Cup in 2012,2013 and 2015, placing second overall in 2015. Delfour qualified for the 2016 Summer Olympics in Rio de Janeiro where he finished in 17th place in the K1 event.