Midterms 2026 · the count v the market · read-only

Who is winning
the night: the market
or the model?

Polymarket reads raw totals. The A1 count model reads the order of the count. Eight Senate races, both lines live every sixty seconds, scored in public on a grid fixed before the first vote.

A1 model · Senate R
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Polymarket
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R control mid
Kalshi
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R control mid
Senate map · P(R) liveconnecting
The night, 22:00 to 06:00 UTC · poll closes · trust-from windows
22:00Z
23:00Z
00:00Z
01:00Z
02:00Z
03:00Z
04:00Z
05:00Z
06:00Z

What the desk answers

Three questions, every sixty seconds, legible at 3 am on a phone.

01

What does the count say, and how much of it is real?

Votes counted, the running margin, and the count-order corrected margin with its band, per race, with the hour the count turns honest.

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02

What does the market say, and is it wrong?

Polymarket and Kalshi mids against the model's fair value and 90% band, net of the taker fee, with depth within two cents.

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03

Who is winning the night?

A running Brier score, model versus market, per race and overall, written to an append-only log nobody can edit after the fact.

scoring from 10% counted