Halldór Arnar Guðmundsson · jarnkarl.is https://jarnkarl.is/keppandi/halldor-arnar-gudmundsson Halldór Arnar Guðmundsson í IRONMAN og járnkarlakeppnum: ný úrslit birtast hér sjálfvirkt. is Halldór Arnar Guðmundsson: IRONMAN Copenhagen 2021, 10:22:04https://jarnkarl.is/keppni/ironman-copenhagen/2021https://jarnkarl.is/keppandi/halldor-arnar-gudmundsson#2021-ironman-copenhagen-140.6Sun, 22 Aug 2021 12:00:00 +0000IRONMAN · 36. sæti í M25-29 · sund 1:11:16, hjól 5:22:00, hlaup 3:35:54.