Sii wad qodobkan - Thiessen, markii ugu horeysay ee uu ka ciyaaro Canadian Juniors, wuxuu lumiyay finalka 2001 Canadian Junior Curling Championships isagoo hogaaminaya Mike McEwen. Thiessen wuxuu xubin ka ahaa kooxda horyaalka Universiade 2003. Wuxuu matalayay jaamacadda Brandon, isagoo u ciyaarayay Mike McEwen. Kadib jaamacadda, wuxuu u ciyaaray hogaanka Sean Grassie ka hor inta uusan u dhaqaaqin inuu ka ciyaaro Alberta isagoo ah hogaamiyaha Mark Johnson sanadkii 2004. Sanadkii 2006, wuxuu u dhaqaaqay inuu u ciyaaro Kevin Koe. Thiessen wuxuu ku guuleystay 2008 Canada Cup of Curling kooxda, wuxuuna u qalmay Brier-kii ugu horreeyay ee 2010 isagoo ka tirsan Kooxda Alberta. Kooxda ayaa ku guuleysatay Brier ka dib markii ay garaacday Glenn Howard oo reer Ontario ah 6-5 finalka. Waxay ku guuleysteen horyaalka adduunka ee sannadkaas, iyagoo ku guuleystay billad dahab ah ka dib guushii ay ka gaadheen Norway, oo uu ka gudbay Torger Nergård. Kadib markii Pat Simmons uu la saxiixday kooxda, waxay aadeen Brier-kii labaad ee 2012, laakiin waxaa laga badiyay Ontario, waxaana ka booday Glenn Howard finalka. Sanadkii 2014 Brier waxay ku soo noqnoqdeen horyaalnimada Kanada, iyagoo 10-5 ku garaacay John Morris's B.C. Kooxda ayaa ku guuleysatay kaalinta 4-aad ee tartanka curling-ka ragga ee adduunka ee 2014.
Waxaad Xilli ciyaareedkii ka dib, Koe ayaa ka tagay kooxda waxaana lagu beddelay John Morris. Kooxdu waxay matali doontaa Kooxda Kanada ee 2015 Tim Hortons Brier oo ah horyaal difaacaya. Waxay ku guuleysan doonaan 2015 Brier waxayna ku guuleysan doonaan billad naxaas ah 2015 Ford World Men's Curling Championship. Kooxdu waxay matali doontaa Kooxda Kanada ee 2016 Tim Hortons Brier markii ugu dambeysay, iyagoo ku dhammaystiray kaalinta 5aad. Kooxdu waxay u kala baxeen jidkooda xilli ciyaareedkii ka dib.