[2] In a 2016 interview, Kotka talked about her running background: "I have always loved outdoor life and kept active with skiing, biking, hiking, diving, yoga but not running.

"[3] Kotka's major claim to fame is winning the 101 km Ultra-Trail Courmayeur-Champex-Chamonix (CCC) in Chamonix, France, in 2016 by a margin of almost half an hour and the 121 km Ultra-Trail Sur les Traces des Ducs de Savoie (TDS) in the same location, and in 2017, by almost two hours and a half, improving the previous course record from 2015 by 46 minutes.

[4] For some years, Kotka suffered from RED-S relative energy deficiency in sport (RED-S), getting back to normal form at the beginning of 2021.

[6] Since 2017, she and her husband, Toni Spasenoski, who is a high-tech project manager and amateur photographer, live mostly in Chamonix.

In 2018, she started Moonvalley, an online shop dedicated to organic energy bars and sports drinks, together with fellow athletes Ida Nilsson and Emelie Forsberg.