Karl Ivar Martinsen
* 8 December 1920 – Unknown
* 8 December 1920 – Unknown
| Show: | All | World Ch. | Multi-Sport Events | Continental Ch. | World Cup | Other Ch. | National Ch. |
| Tournament | Held | Rink | 500 m | 1000 m | 1500 m | 3000 m | 5000 m | 10000 m | Samalog | Other |
|---|---|---|---|---|---|---|---|---|---|---|
| Unofficial World Allround Championships Men 1946 | 9–10 Feb | Oslo Bislett | 45,7 (14) | — | 2.25,4 (12) | — | 8.49,7 (13) | 18.11,7 (13) | 201.722 (12) | — |
| Olympic Winter Games 1948 | 30 Jan–8 Feb | Sankt Moritz | — | — | 2.22,6 (16) | — | — | — | — | — |
| European Championships 1948 | 14–15 Feb | Hamar Stadion | 1.05,5f (30) | — | 2.24,5 (5) | — | 8.44,9 (7) | 18.04,3 (6) | 220.372 (12) | — |
| World Allround Championships Men 1950 | 18–19 Feb | Eskilstuna Tunavallen | 49,6 (6) | — | 2.36,4 (3) | — | 9.40,8 (9) | 18.38,1 (7) | 215.718 (6) | — |
| European Championships 1952 | 2–3 Feb | Östersund | 45,1 (2) | — | 2.25,4 (6) | — | 8.54,8 (12) | 18.22,8 (8) | 202.187 (7) | — |
| Olympic Winter Games 1952 | 14–25 Feb | Oslo Bislett | — | — | 2.23,4 (8) | — | — | — | — | — |
| World Allround Championships Men 1952 | 1–2 Mar | Hamar Stadion | 44,7 (6) | — | 2.24,4 (12) | — | 8.29,8 (5) | 17.34,1 (4) | 196.518 (3) | — |
| European Championships 1953 | 31 Jan–1 Feb | Hamar Stadion | 45,3 (3) | — | 2.22,4 (5) | — | 9.21,0 (7) | 17.44,0 (4) | 202.067 (3) | — |
| World Allround Championships Men 1953 | 14–15 Feb | Helsinki Olympia | 45,2 (9) | — | 2.25,3 (14) | — | 8.42,6 (9) | 17.49,7 (7) | 199.378 (9) | — |
| World Allround Championships Men 1954 | 16–17 Jan | Sapporo Maryjama | 46,9 (11) | — | 2.28,6 (12) | — | 8.41,8 (10) | 18.50,6 (10) | 205.143 (10) | — |