At his international debut during the 2014 European Championships in Berlin, Puts finished eighth on the 50 meter backstroke. In the 50 meter freestyle, Puts swam a 23.31 finishing 6th in his heat. He placed 43rd overall during the prelims, and did not qualify for the semifinals. At the 2015 European Short Course Swimming Championships held in Netanya, he finished 8th in the 50 meter freestyle with a time of 21.49. In addition, he was eliminated in the 100 meter freestyle heats. On the 4x50 meter medley, together with Sébas van Lith, Maarten Brzoskowski and Ben Schwietert, he did not qualify for the semifinals. Together with Ben Schwietert, Inge Dekker and Ranomi Kromowidjojo, he won the bronze medal in the 4x50 meter freestyle. In the mixed 4x50 meter wisselslag, he finished 4th with Sébas of Lith, Dekker and Kromowidjojo. During the Open Scottish Championships, in July 2016, Glasgow, Puts matched the long course Dutch record on the 50 meter freestyle of Pieter van den Hoogenband. He stayed a fraction of a second above the limit for participation in the 2016 Olympic Games in Rio de Janeiro. In October 2016, with a time of 21.17 he improved the Dutch record in the 50 meter freestyle of Johan Kenkhuis from 2005. Incidentally Puts went below the limit for participation at the 13thFINA World Swimming Championships held in December 2016 at Windsor, Ontario, Canada. In Canada, puts became world champion on the 50 meter freestyle short course with a time of 21.10. Together with Nyls Korstanje, Ben Schwietert and Kyle Stolk, he finished fifth on the 4x50 meter freestyle relay. On the mixed 4x50 meter freestyle he obtained together with Nyls Korstanje, Ranomi Kromowidjojo and Maaike de Waard the silver medal with a final time of 1:29.82. One week after the world championships, he twice improved the Dutch record in the 50 meter freestyle at the Amsterdam Swim Meet. Puts participated in the 17th Fina World Aquatics Championships held in Budapest, Hungary in July 2017. On July 28, Puts swam in heat 13 of the 50 meter freestyle. He swam a 22.28 which placed him 21st in the overall results, which was not enough to have a spot for the semifinals.
