Senát 2026 · forecast

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District 63 — Přerov

open seat (Seitlová retiring)  As of 2026-10-09 · Stage: blind (no odds) · v1

Round-1 result

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

CandidateParty / backingVotesShare
Jakub NavaříkKDU+ODS+STA+TOP15 56138.54 %
Petr VránaANO15 19237.62 %
Marek ObrtelČSNS6 07315.04 %
Dan ChromecSPD3 5488.78 %

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
Petr Vrána51 %21 %38 %36 %37 %47 %34 %
Jakub Navařík49 %79 %62 %64 %63 %53 %66 %

AI: v2 · AI + model: v2 · Odds contamination risk: low

Before the election — scored freeze (9 Oct)

CandidateAIStatistical modelAI + modelBettingAI + betting
Jakub Navařík63 %73 %74 %14 %29 %
Petr Vrána36 %20 %24 %82 %68 %
Dan Chromec0.4 %4 %2 %2 %2 %
Marek Obrtel0.2 %3 %0.8 %1 %1 %
Others0.2 %0 %0.2 %0 %0.0 %

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

CandidateParty / backingP(win)Band
Jakub NavaříkKDU+ODS+STA+TOP (navrhl/a ODS)63 %44–77 %
Petr VránaANO36 %21–54 %
Dan ChromecSPD0.4 %0–2 %
Marek ObrtelČSNS0.2 %0–1 %
Others0.2 %0–0 %

Other candidates on the ballot: —. 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)
Jakub NavaříkKDU+ODS+STA+TOP63 %73 %38 % (31–46)99 %
Petr VránaANO36 %20 %32 % (25–39)91 %
Dan ChromecSPD0.4 %4 %16 % (9–23)4 %
Marek ObrtelČSNS0.2 %3 %13 % (6–21)2 %

AI agent (blind) — Others: 0.2 %. The model cannot see candidates with neither party nor municipal base (new movements, personal brand) — it underrates them. Model →

Why

Vrána likely wins round 1, but ANO is 0–2 in runoffs here and wins only ~20 % of runoffs overall.

What to watch

If Navařík leads → 80–85 %; if Vrána leads by 8+ pp above 43 % → ~45–50 %.

Run limitations