Kammala jumla mai zuwa: A Gasar Zakarun Turai ta 2012 a Helsinki, an cire ta a zagaye na farko na mita 100 tare da lokaci na 13.38. A lokacin kakar wasanni ta 2012/13, ta sami damar inganta rikodin ta na sirri a Gasar Zakarun Turai ta 2013 zuwa 8.18 a cikin mita 60 kuma ta dauki wasan kusa da na karshe. A cikin kakar wasan waje, ta buɗe kakar tana da alkawari tare da lokacin 13.06 a cikin iska mai ƙarfi. A lokacin Wasannin Bislett, ta inganta lokacinta mafi kyau na 13.16 seconds a cikin iskar da aka yarda. A lokacin friidrettsgalaen a Mannheim, Jamus, ta ƙara inganta rikodin ta na sirri zuwa 13.04. Ta haka ne, ta cancanci zuwa Gasar Cin Kofin Duniya ta 2013 a Moscow (B standard). A Gasar Cin Kofin Duniya, ta gama ta 30th gabaɗaya tare da lokacin 13.43 kuma ba ta ci gaba da zafin jiki ba. A watan Yulin 2013, Pedersen ya yi gasa a
2013 Gasar Zakarun Turai ta U23 kuma ta lashe zinare a wasan karshe tare da lokacin 13.12, a gaban Pole Karolina Kołeczek (13.30).