2020Final results
2020 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%12,991
Helena WebbDemocrat
44.6%10,448
23,439 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET