Senát 2026 · forecast

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District 42 — Kolín

open seat (Kárník not running)  As of 2026-10-09 · Stage: blind (no odds) · v1

Round-1 result

counted 100 % · Source: ČSÚ (volbyhned.cz)

CandidateParty / backingVotesShare
Michael KašparSTAN23 01845.26 %
Andrea BrzobohatáANO12 98825.54 %
Roman SchulzODS+TOP 098 77317.25 %
Antonín DušekSPD2 1354.19 %
Pavel SehnalAPB2 1084.14 %
Jiří RynekrKSČM1 1932.34 %
František TřeštikJaSaN6321.24 %

Round-2 forecasts (16–17 Oct)

Probability of winning the runoff. Scored separately from the freeze; the freeze (9 Oct) is scored on the final winner.

CandidateAIStatistical modelAI + modelBettingAI + bettingSTEM (CNN Prima)Seznam Zprávy
Michael Kašpar95 %97 %96 %——99 %99 %
Andrea Brzobohatá5 %3 %4 %——1 %0.9 %

AI: v2 · AI + model: v2 · Odds contamination risk: none

Before the election — scored freeze (9 Oct)

CandidateAIStatistical modelAI + modelBettingAI + betting
Michael Kašpar75 %60 %72 %72 %72 %
Andrea Brzobohatá10 %7 %6 %11 %10 %
Roman Schulz9 %19 %15 %10 %11 %
Pavel Sehnal5 %3 %3 %4 %4 %
Others1 %11 %4 %3 %3 %

AI agent (blind) — Before the election — scored freeze (9 Oct)

CandidateParty / backingP(win)Band
Michael KašparSTAN75 %60–87 %
Andrea BrzobohatáANO10 %4–19 %
Roman SchulzODS+TOP 09 (navrhl/a ODS)9 %3–18 %
Pavel SehnalAPB5 %1–11 %
Others1 %0–2 %

Other candidates on the ballot: František Třeštik (JaSaN), Jiří Rynekr (KSČM), Antonín Dušek (SPD). Candidates and lists per the official ČSÚ register (volby.gov.cz).

AI agent (blind) vs. Statistical model

CandidateParty / backingAI agent (blind)Statistical modelRound-1 share (model, 80% interval)P(advance / win round 1)
Michael KašparSTAN75 %60 %30 % (22–39)94 %
Roman SchulzODS+TOP 099 %19 %17 % (8–25)32 %
Andrea BrzobohatáANO10 %7 %20 % (12–29)58 %
Jiří RynekrKSČMin “others”4 %8 % (0–15)3 %
Antonín DušekSPDin “others”4 %9 % (1–17)5 %
Pavel SehnalAPB5 %3 %8 % (0–16)4 %
František TřeštikJaSaNin “others”3 %8 % (0–15)3 %

AI agent (blind) — Others: 1 %. The model cannot see candidates with neither party nor municipal base (new movements, personal brand) — it underrates them. Model →

Why

The mayor of Kolín is a clear favourite; the main risk is a runoff against Schulz (centre-right vs. centre-right).

What to watch

Kašpar leads by 10+ pp → 92+ %; runoff against Schulz → ~53 %.

Run limitations