Tonight: Seven Hours of Poll Closings, Then the Waiting

Election night, for the prediction markets, starts at 6 PM ET and does not end at midnight. The first polls close in the Eastern-time parts of Indiana and Kentucky at 6 PM, and the last, in Alaska's western Aleutians, close at 1 AM ET on Wednesday (Kalshi News). Between those two moments, roughly $1.9 billion of midterm positions will be repriced state by state, and the two big venues have built the night into their products: Kalshi's new Election Day field visualization positions each race as a circle placed by the favored candidate's price and sized by volume, with accuracy scores and low-volume warnings attached (NextPredict), while Polymarket's 2026 Midterms Hub pairs live results with live prices on the same screen.

The hour-by-hour shape is known in advance. At 7 PM ET, Georgia, South Carolina, Vermont and Virginia close, along with most of Florida: the South Carolina Senate market, priced at an identical 73 cents for Graham on both venues, gets its first real test. At 7:30 PM, North Carolina, Ohio and West Virginia close; Ohio's Senate special election has Sherrod Brown at 71 cents on both Polymarket and Kalshi (Vegas Insider). The 8 PM wave is the biggest of the night: Pennsylvania, Maine, Maryland, Massachusetts, New Jersey and most of Michigan and Texas, including Pennsylvania's 1st district, the board's biggest overnight mover. Arkansas follows at 8:30. At 9 PM, New York, Arizona, Colorado, Iowa, Minnesota, Wisconsin and the last of Texas and Michigan close: Iowa's Senate race, the tightest big race on the board at 52 percent for Hinson (Covers), and Kansas, where the Senate market flipped to a record 63 percent for Hamilton this week (NextPredict), report in that window. Montana, Nevada and Utah close at 10 PM; California, Washington and Oregon at 11 PM; Hawaii and most of Alaska at midnight.

Television is part of the market structure tonight. CBS News will incorporate Kalshi data into its Election 2026 coverage from 5 PM ET, while CNN and Fox News will not feature odds (NextPredict), and the venues have struck media deals across CNN, CBS, CNBC and Dow Jones ahead of the midterms (Phemex News). The rooms are set too: Kalshi is hosting election-night watch parties in New York, Washington, Chicago, Austin and Los Angeles, and Polymarket figures join the All-In podcast's 7 PM ET livestream.

The part of tonight that decides money is not the closing times. It is the settlement rules, and the two venues wrote different ones. Kalshi's House and Senate control markets can settle early on a consensus of media calls; if the calls never align, the fallback is formal, the party of the Speaker for the House and the party of the president pro tempore for the Senate on February 1, 2027 (PredictionTape; PredictReport). Polymarket's single-race markets resolve when the Associated Press, Fox News and NBC have all called the race for the same candidate, and otherwise wait for the official certified result. A race can trade at 95 cents for days before it pays.

That gap between priced and paid is where tonight's risk sits. Close races trigger recounts, and a race in recount will not settle on a media call; its market can stay open for weeks. A runoff, Georgia being the standing example, pushes a Senate seat past election night entirely, and if chamber control runs through that seat, both platforms wait with it. California counts mail ballots that arrive up to a week after Election Day, so its district markets can stay live and moving long after the state's 11 PM close. And the thin end of the board will move first and fastest: district markets trade far less than the control markets, a single large order can move them several points (Vantage Predictions), and the Anti-Corruption Data Collective found 96 percent of congressional markets could be shifted five cents for $3,500 or less.

So the watch list writes itself. Watch the 8 PM wave for whether the Senate price, 78 percent as polls opened, survives Pennsylvania and Michigan. Watch the thin districts for moves that are one order deep. Watch whether Kalshi's media-consensus trigger and Polymarket's three-network rule produce the same winners at the same speed. The prices will call the night long before the contracts pay for it, and the distance between those two moments is the real story of Election Night 2026.

Sources: Kalshi News, NextPredict, Vegas Insider, Covers, Phemex News, PredictionTape, PredictReport, Vantage Predictions, Action Network