Update 11:25 p.m.
With results from all precincts reported, challenger Steve Toth has defeated incumbent Rob Eissler in the race for Texas House District 15. Toth received 56.48 percent of the vote.
Elsewhere, incumbents Debbie Riddle and Bill Callegari won convincingly against their opponenets.
Riddle, in the race for Texas House District 150, won 85.30 percent of the vote against James Wilson. Callegari received 79.88 percent against Randy Brown to win the seat in District 132. All vote totals are unofficial.
Update 8:50 p.m.
Early voting results for Texas House races in the Harris and Montgomery County areas show two incumbents with strong leads and one challenger off to a good start.
Steve Toth is leading incumbent Rob Eissler in District 15 with 54 percent of the vote, a total of 6287 votes.
Meanwhile incumbent Bill Callegari has a strong lead over Randy Brown in District 132 with 79.88 percent of the votes. Incumbent Debbie Riddle is also leading James Wilson with 85.53 percent.