Guðmundur Magnús Sigurbjörnsson · jarnkarl.is https://jarnkarl.is/keppandi/gudmundur-magnus-sigurbjornsson Guðmundur Magnús Sigurbjörnsson í IRONMAN og járnkarlakeppnum: ný úrslit birtast hér sjálfvirkt. is Guðmundur Magnús Sigurbjörnsson: IRONMAN 70.3 Duisburg 2026, 6:48:04https://jarnkarl.is/keppandi/gudmundur-magnus-sigurbjornssonhttps://jarnkarl.is/keppandi/gudmundur-magnus-sigurbjornsson#2026-ironman-70-3-duisburg-70.3Sun, 16 Aug 2026 12:00:00 +0000IRONMAN 70.3 · 199. sæti í M35-39 · sund 0:48:08, hjól 2:56:20, hlaup 2:52:32. Guðmundur Magnús Sigurbjörnsson bætti sig um 28 mín. í IRONMAN 70.3: 6:48:04 á IRONMAN 70.3 Duisburg (áður 7:16:29). Guðmundur Magnús Sigurbjörnsson: IRONMAN 70.3 Cascais Portugal 2025, 7:16:29https://jarnkarl.is/keppni/ironman-70-3-cascais-portugal/2025https://jarnkarl.is/keppandi/gudmundur-magnus-sigurbjornsson#2025-ironman-70-3-cascais-portugal-70.3Sat, 18 Oct 2025 12:00:00 +0000IRONMAN 70.3 · 280. sæti í M35-39 · sund 0:50:31, hjól 3:27:52, hlaup 2:44:39.