Senát 2026 · forecast

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District 75 — Karviná

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

Round-1 result

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

CandidateParty / backingVotesShare
Lenka BrzyszkowskáANO8 00933.62 %
Petr KazíkOK3 41114.31 %
Mariam SzyjaZelSTAPirTOPSEN3 36114.10 %
Aleš PoláchODS+Soukromníci3 31613.92 %
Pavel StaněkSPD2 96112.43 %
Roman GaliaSOCDEM2 1709.10 %
Karel SvětničkaJaSaN5932.48 %

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
Lenka Brzyszkowská72 %73 %65 %82 %77 %90 %72 %
Petr Kazík28 %27 %35 %18 %23 %10 %28 %

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

Before the election — scored freeze (9 Oct)

CandidateAIStatistical modelAI + modelBettingAI + betting
Lenka Brzyszkowská65 %40 %46 %85 %78 %
Aleš Polách15 %9 %11 %2 %4 %
Mariam Szyja13 %23 %26 %3 %7 %
Petr Kazík4 %6 %3 %2 %2 %
Pavel Staněk2 %9 %11 %6 %8 %
Others1 %13 %3 %1 %2 %

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

CandidateParty / backingP(win)Band
Lenka BrzyszkowskáANO65 %47–77 %
Aleš PoláchODS+Soukromníci (navrhl/a ODS)15 %8–24 %
Mariam SzyjaZelSTAPirTOPSEN (navrhl/a Piráti)13 %7–22 %
Petr KazíkOK4 %2–9 %
Pavel StaněkSPD2 %0–6 %
Others1 %0–3 %

Other candidates on the ballot: Karel Světnička (JaSaN), Roman Galia (SOCDEM). 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)
Lenka BrzyszkowskáANO65 %40 %37 % (27–47)99 %
Mariam SzyjaZelSTAPirTOPSEN13 %23 %17 % (8–26)43 %
Pavel StaněkSPD2 %9 %13 % (4–22)22 %
Aleš PoláchODS+Soukromníci15 %9 %8 % (0–17)8 %
Roman GaliaSOCDEMin “others”6 %8 % (0–16)7 %
Karel SvětničkaJaSaNin “others”6 %8 % (0–16)7 %
Petr KazíkOK4 %6 %8 % (0–16)7 %

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 only district with an ANO favourite: a strong local base and a split opposition. In 2020 the runoff was decided by 84 votes at 7.7 % turnout.

What to watch

Round-1 margin: 20+ pp → 75+ %; under 10 pp → about a coin flip. A Polách–Szyja deal.

Run limitations