[4] In August 2014, together with Wiebe Scholten, he won a bronze medal in the team boys event at the 2014 Summer Youth Olympics.

[8] As a reward for this season, Kimmann was one of the three nominees for Dutch Sportsman of the year, which was eventually won by short track speed skater Sjinkie Knegt.

[3] The serious crash of his friend and fellow BMX-cyclist Jelle van Gorkom in January 2018 while the two were training made deep impact on him.

In early 2021 Kimmann left the Dutch National Team in Papendal for The UCI World Cycling Centre in Aigle.

After the Olympics he has confirmed that he'll continue BMX racing, but he doesn't rule out the possibility of joining the Dutch track cycling team in the future.