Nyorai kupfuurira kweiyi ndima - Thiessen, mukutanga kwake paCanada Juniors, akarasikirwa nemagumo e2001 Canadian Junior Curling Championships achitamba kutungamira kwaMike McEwen. Thiessen aiva nhengo ye 2003 Winter Universiade championship team. Akamirira Brandon University, achitamba chinotungamirira nokuda kwaMike McEwen. Mushure meyunivhesiti, akatamba anotungamira Sean Grassie asati aenda kunotamba muAlberta saMark Johnson anotungamira muna 2004. Muna 2006, akatamira kunotambira Kevin Koe. Thiessen akakunda 2008 Canada Cup yeCurling nechikwata, uye akakodzera Brier yake yekutanga muna 2010 seChikwata cheAlberta. Chikwata chacho chakakunda Brier pashure pokukunda Glenn Howard wokuOntario 6-5 mumutambo wokupedzisira. Vakaenderera mberi nekukunda mumakwikwi epasi rose egore iroro, vachiwana menduru yegoridhe mushure mekukunda Norway, yakapfuurwa naTorger Nergård. Mushure mekunge Pat Simmons asayina nechikwata, vakaenda kuBrier yavo yechipiri muna 2012, asi vakarasikirwa neOntario, vakasiyiwa naGlenn Howard mumutambo wekupedzisira. Pa2014 Brier rink yakadzokorora semakwikwi eCanada, ichikunda John Morris 'BC rink 10-5 mufainari. Chikwata ichi chaizopedza chiri pachinzvimbo chechina pa2014 World Men's Curling Championship
. Mushure memwaka, Koe akasiya timu uye akatsiviwa naJohn Morris. Chikwata chaizomiririra Chikwata cheCanada pa2015 Tim Hortons Brier semakwikwi ekudzivirira. Ivo vaizokunda 2015 Brier uye voenderera mberi kuhwina menduru yebronze pa2015 Ford World Men's Curling Championship. Chikwata chaizomiririra Chikwata cheCanada pa2016 Tim Hortons Brier kwenguva yekupedzisira, ichipedza iri munzvimbo yechishanu. Chikwata chacho chaizoparadzana pashure pemwaka wacho.