Buuxi weedha soo socota: Laga soo bilaabo 2000 ilaa 2008, Stefán wuxuu u tartamay Iceland sagaal tartan oo caalami ah: shan jeer Olombikada Chess (
2000, guddiga kaydka 2aad; 2002, guddiga kaydka; 2004, guddiga kaydka 2aad; 2006, guddiga kaydka; 2008, guddiga 4) iyo afar jeer Kooxda Kooxda Yurub ee Shaashadda (2001, guddiga 4; 2003, guddiga 3; 2005, guddiga 2; 2007, guddiga 4). Dhibcaha guud ee Olympiad wuxuu ahaa 23/41 (+ 18 <unk> 13 = 10), iyo dhibcaha guud ee Kooxda Kooxda Yurub wuxuu ahaa 161⁄2/32 (+ 11 <unk> 10 = 11). Natiijada ugu wanaagsan ee Iceland ee Olombikada iyadoo Stefán uu ka tirsan yahay kooxdu waxay ahayd 22-aad sanadkii 2002, iyo natiijada ugu wanaagsan ee Kooxda Kooxda Yurub waxay ahayd 20-aad sanadkii 2001 iyo 2007.