The Saskatoon skip won her second game of the day, defeating Heather Nedohin of Sherwood Park, Alta., 8-5 in Draw 2 action Wednesday.
Lawton took control with four points in the fifth end.
Earlier, Lawton downed Sherry Middaugh of Coldwater 10-4. Lawton scored two in the second end, then had steals of two and three to take a 7-1 lead after four ends.
The two wins give Lawton a good start on her quest for an Olympic berth in Sochi in 2014. The winner of both the men's and women's tournaments here will receive one of the six automatic qualification spots for the 2013 Roar of the Rings — the tournament that will determine who advances to the 2014 Winter Games in Sochi.
Middaugh (1-1) rebounded in Draw 2 with an 8-5 win over Winnipeg's Cathy Overton-Clapham (0-1).
Calgary's Crystal Webster is also 1-1 after a 7-4 win over Winnipeg's Chelsea Carey (0-1).
In men's action, Edmonton's Kevin Koe (1-0) beat John Epping of Peterborough, Ont., 5-3. That brought Epping's young rink back down to earth after they scored a 7-6 win over Olympic champion Kevin Martin in the first draw.
Mike McEwen of Brandon, Man., beat Brad Gushue of St. John's, N.L., 8-2 in the first match for both rinks.
Draw 3 goes Wednesday evening.