99chambers
Still countingUnofficial results

Missouri House District 107

Missouri House of Representatives · Missouri

Mark Matthiesen leads Gary Wester by 0.8 points with 95% of the expected vote counted. The race has not been called.

Mark MatthiesenRepublican · leading · incumbent
50.4%7,541
Gary WesterDemocrat
49.6%7,416
95% of the expected vote counted · 14,957 votes

Source: civicAPI unofficial results and race callsUpdated Nov 5, 2026, 4:56 PM ET

Where the race moved

Against the 2024 presidential vote

The seat's recent races

EvenR+19.92022 HouseR+21.02024 HouseR+19.62024 Pres.R+0.82026 House

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)

Pre-election forecast (final, Nov 3)

Our model's last run before Election Day, Nov 3, 2026. It no longer updates.

Gary Wester
6%
Mark Matthiesen
94%
Projected margin
R+11.4
How the forecast works →

The candidates

Mark Matthiesen (R)
Incumbent, Missouri House of Representatives, first elected 2016Gary Wester (D)