**Incumbent Republican Brian Jack faces Democrat Maura Keller in Georgia’s 3rd congressional district on November 3, 2026, with a potential runoff on December 1 if no candidate reaches a majority.** All major forecasters rate the seat Solid or Safe Republican, consistent with the district’s strong GOP lean and Jack’s prior large margins. Jack ran unopposed in the Republican primary while Keller defeated her primary opponent in May 2026. In this low-competition environment, traders assess a moderate-to-high probability that the Republican nominee clears 50 percent outright, avoiding a runoff. The 62.2 percent implied probability for an outright first-round winner reflects the district’s partisan baseline and limited Democratic viability, tempered by the possibility of variable turnout or minor candidates in a low-profile general election. No recent polling or events have materially altered this outlook.