Sii wad qodobkan - Wuxuu ku dhashay Flint, Michigan wuxuuna ka qalin jabiyay Davison High School. Thomas wuxuu kubbadda koleyga uga ciyaaray jaamacadda Vermont muddo afar sano ah, laga soo bilaabo 1993-1997, xilligaas oo uu ahaa 217aad guud ahaan waxaa soo saaray kooxda Quebec Nordiques ee 1994 NHL Entry Draft
Waxaad Wuxuu ciyaaray dhowr sano horyaalada hoose iyo Yurub, ka hor inta uusan u gudbin NHL isagoo 28 jir ah, oo uu la ciyaaray Boston Bruins. Ugu dambeyntii wuxuu soo baxay isagoo ah goolhayaha ugu weyn Bruins-ka isagoo 32 jir ah. Thomas waa laba jeer ku guuleystay Vezina Trophy (2009 iyo 2011) oo ah goolhayaha ugu fiican ee NHL, wuxuuna xubin ka ahaa Kooxda Mareykanka ee Olombikada Jiilaalka ee 2010 ee Vancouver. Thomas wuxuu ku guuleystay Conn Smythe Trophy oo ah ciyaaryahanka ugu qiimaha badan playoffs-ka Stanley Cup ee 2011. Wuxuu ahaa ciyaaryahankii ugu da'da weynaa taariikhda NHL ee ku guuleysta abaalmarinta isagoo 37 jir ah. Thomas waa mid ka mid ah afarta ciyaartoy ee u dhashay Mareykanka ee ku guuleystay Conn Smythe Trophy, oo ay weheliyaan Brian Leetch, Jonathan Quick, iyo Patrick Kane.