Karen Bass secured a spot in the November runoff for Los Angeles mayor. The congresswoman finished among the top two candidates in the primary, setting up a head-to-head contest in the general election. Prediction markets, which aggregate betting odds on political outcomes, now give Bass a 98 percent probability of coming in first in the initial round and a 78 percent chance of winning the runoff.
What prediction markets are saying
Bettors on platforms that trade contracts tied to election outcomes have increasingly priced in a Bass victory. The 98 percent probability for the primary reflects confidence she landed well ahead of her opponents. For the general election, the 78 percent figure implies a strong—but not certain—advantage. Prediction markets have a mixed track record, but their consensus this far out signals a clear front-runner.
The runoff structure
Los Angeles holds a nonpartisan primary where all candidates appear on one ballot. If no one clears 50 percent, the top two advance to a November runoff. Bass, a Democrat representing California’s 37th congressional district, will face the runner-up. Her campaign has focused on homelessness, public safety, and housing affordability—issues that dominated the primary.
Key unknowns before November
Turnout in the general election often differs from the primary, especially in a city where mayoral races draw national attention. Money and endorsements will pour in over the next few months. Bass’s opponents will try to chip away at her lead, and the dynamics of a one-on-one race are different from a crowded field. The prediction market numbers could shift as the campaign unfolds.
The runoff date is set for November. Until then, Bass’s campaign will work to convert that 78 percent probability into a concrete outcome.
