Incumbent Democrat Marilyn Strickland faces Republican Chris Chung in Washington's 10th District, a seat with a D+9 partisan lean where all major forecasters rate the contest solid or safe Democratic. Trader prices cluster near even across Person A, Person B, and margin buckets because the race draws minimal attention and polling, leaving uncertainty over the precise victory margin despite the district's consistent Democratic results in recent cycles. Strickland advanced from the August top-two primary with roughly 49 percent, well ahead of Chung, aligning with her 17-point 2024 general-election margin. Low campaign visibility and Washington's mail-ballot system keep probabilities balanced until turnout patterns or late national shifts provide clearer signals ahead of the November 3 vote.