https://jarnkarl.is/keppandi/arnthor-atlason Arnthor Atlason í IRONMAN og járnkarlakeppnum: ný úrslit birtast hér sjálfvirkt. is https://jarnkarl.is/keppni/ironman-portugal-cascais/2025https://jarnkarl.is/keppandi/arnthor-atlason#2025-ironman-portugal-cascais-140.6Sat, 18 Oct 2025 12:00:00 +0000IRONMAN · 57. sæti í M18-24 · sund 1:21:18, hjól 6:21:35, hlaup 4:54:45. https://jarnkarl.is/keppandi/arnthor-atlasonhttps://jarnkarl.is/keppandi/arnthor-atlason#2024-ironman-70-3-florida-70.3Sun, 15 Dec 2024 12:00:00 +0000IRONMAN 70.3 · 40. sæti í M18-24 · sund 0:47:18, hjól 2:53:59, hlaup 1:45:42.