2018Final results
2018 election for Missouri House District 100
Missouri House of Representatives · Missouri
Derek Grier (R) won with 55.4% of the vote, defeating Helena Webb (D) by 10.8 points.
Derek GrierRepublican · winner · incumbent
55.4%11,137
Helena WebbDemocrat
44.6%8,969
20,106 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET