Roach wins 18th Jeopardy! game

Nova Scotia's Jeopardy! champion has done it again. 

Mattea Roach won her 18th game in a row on Thursday night. 

The 23-year-old has now won a total of $438,183 over her remarkable run. 

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Roach is in sole possession of the 8th longest streak in the quiz show's history. Another win moves her into a three-way tie for 7th. 

She'll have a chance to get win 19 on Friday night at 8:30 p.m.