Kasper Fosser

Kasper Harlem Fosser (born 1999) is a Norwegian orienteering competitor who represents Norwegian club IL Heming and Swedish club IFK Göteborg.

His achievements include winning the overall Orienteering World Cup three times, in 2021, 2022 and 2024, and four individual gold medals at the World Orienteering Championships.

He was awarded the Egebergs Ærespris in 2025.

Orienteering career 2019 Fosser won a silver medal at the 2019 World Orienteering Championships in Østfold, and has won gold medals in both long distance, middle distance and relay in the Junior World Orienteering Championships.

2021 He won a gold medal in long distance at the 2021 World Orienteering Championships in Doksy, and silver medal in the sprint at the same championships, behind Isac von Krusenstierna. Fosser won the long distance, held near Heřmánky, in a time of 1:35:55, ahead of Matthias Kyburz and Magne Daehli.

He won the overall 2021 Orienteering World Cup ahead of Matthias Kyburz, with 460 points, having three race victories.

2022 At the 2022 World Orienteering Championships he won the gold medal in the individual sprint, and a bronze in the mixed sprint relay.

He also won the overall 2022 Orienteering World Cup ahead of Martin Regborn, scoring 382 points, with two individual race victories.

2023 He won a gold medal in the long distance at the 2023 World Orienteering Championships, after a close fight with Matthias Kyburz. In October 2023 he won a silver medal in sprint at the European Orienteering Championships in Verona.

He placed second overall in the 2023 Orienteering World Cup, behind Kyburz.

2024 Competing at the 2024 World Orienteering Championships in Edinburgh in July 2024, he qualified for the sprint final, where he placed 17th. Two days later Fosser ran the third leg for Norway in the mixed sprint relay. The Norwegian team, which also included Victoria Hæstad Bjørnstad, Eirik Langedal Breivik and Andrine Benjaminsen, won bronze medals in the relay.

He won a silver medal in the middle distance at the 2024 European Orienteering Championships in Hungary, behind Eirik Langedal Breivik. The next day he won a gold medal in the long distance at the championships, ahead of Daniel Hubmann. Fosser was running the last leg in the relay at the 2024 European Championships, winning gold medal for Norway along with Eirik Langedal Breivik and Eskil Kinneberg.

2025 In 2025, Fosser won the silver medal in the middle distance at the 2025 World Orienteering Championships, behind Eirik Langedal Breivik. He went on to win the gold medal in the long distance the following day. He won a gold medal in the relay with the Norwegian team, along with Jørgen Baklid and Eirik Langedal Breivik, ahead of Switzerland (silver) and Finland (bronze).

At the European Orienteering Championships in Belgium in August 2025, Fosser won a gold medal in the mixed sprint relay with the Norwegian team, along with Victoria Hæstad Bjørnstad, Eirik Langedal Breivik, and Andrine Benjaminsen. He later won a silver medal in sprint at the same championships.

In September 2025 he won a national title in the middle distance, which also earned hin the Kongepokal trophy.

2026 In July 2026, Fosser won the gold medal in individual sprint at the 2026 World Orienteering Championships. He also won a bronze medal in the mixed sprint relay, along with Victoria Hæstad Bjørnstad, Eirik Langedal Breivik, and Pia Young Vik.

Skyrunning Fosser has also competed in skyrunning, winning the U23 category in the combined Youth Skyrunning World Championships in 2021.

Personal life Fosser is a grandson of former international orienteer Per Fosser.

Awards and recognition In 2025 Fosser was awarded Egebergs Ærespris ("Honorary Prize of Egeberg") for excelling in both orientering and cross country running.

Results World Championship results YearAgeLongMiddleSprintRelaySprintRelayKnock OutSprint 2019 20 2 — — 2021 22 1 5 2 2 2 2022 23 1 3 — 2023 24 1 7 4 2024 25 17 3 sf 2025 26 12 1