Scan: Will Cleitinho Azevedo win the 2026 Minas Gerais gubernatorial election?

date	predicted	market price	confidence
2026-09-01	80%	82%	68%
2026-08-22	73%	69%	69%
2026-08-14	68%	67%	58%

1. Planner Fable 5.1 · Fermi decomposition + tool plan

Tools chosen: polymarket_direct polymarket_related kalshi_related claude_news article_search gdelt_news wikipedia resolution_source

Sub-questions (Fermi decomposition)

What do the most recent Minas Gerais gubernatorial polls (Quaest, Datafolha, Paraná Pesquisas, AtlasIntel) show for Cleitinho Azevedo in first-round and runoff scenarios?
Has Cleitinho officially confirmed and registered his candidacy for governor of Minas Gerais in 2026, or is there a risk he runs for Senate/other office or withdraws?
Who are the main rival candidates (Mateus Simões, Alexandre Kalil, Rodrigo Pacheco, PT candidate, etc.) and how consolidated is the field on the center-right and left?
Has Cleitinho secured endorsements from Bolsonaro/PL or Romeu Zema/Novo, and how does the national right-wing coalition affect his chances?
What does Polymarket currently price Cleitinho at, and how has the price trended over the past 90 days?
What is the historical base rate of polling frontrunners ~6-12 months out winning Brazilian gubernatorial elections in large states?
Are there legal, TSE eligibility, or scandal-related risks that could disqualify or damage Cleitinho's candidacy?

Planner reasoning

This is a Polymarket question about the 2026 Minas Gerais gubernatorial race, where Senator Cleitinho Azevedo (Republicanos) has been polling strongly as a frontrunner against candidates like Mateus Simões (Zema's successor), Alexandre Kalil, and others. Key drivers are current polling (Quaest, Datafolha, Paraná Pesquisas), whether Cleitinho actually files his candidacy or is drawn into a Senate/VP slot, alliance dynamics (Zema/Novo, PL/Bolsonaro endorsement, Lula/PT candidate), and runoff matchups. Polymarket direct price is the primary anchor; related markets and Brazilian news round out the picture.

2. Research Parallel tool calls

tool	status	time	items	summary
polymarket_direct	OK	0.6s	1	## This Market's Polymarket Data Will Cleitinho Azevedo win the 2026 Minas Gerais gubernatorial election? - Current price (probability): 85.65% - 7-day price change: +0.15% - 30-day price change: +12.35% - Total volume: $178,569 (USD notional) - Price range: 0.15% - 89.05% - Data points: 90 day
polymarket_related	OK	0.8s	25	Polymarket search over 5 keyword(s), kept 25 matches. keyword 'Minas Gerais': 5 markets \| keyword 'Cleitinho': 5 markets \| keyword 'Brazil governor': 5 markets \| keyword 'Mateus Simões': 5 markets \| keyword 'Kalil': 5 markets
kalshi_related	OK	3.0s	1	1 related markets / summaries. keyword 'Minas Gerais': no matches \| keyword 'Brazil election': ok \| keyword 'Cleitinho': no matches
claude_news	OK	24.6s	18	## Key Findings: 2026 Minas Gerais Gubernatorial Election — Cleitinho Azevedo - Candidacy confirmed (Aug 2026): After months of on-again, off-again signals, Republicanos national president Marcos Pereira decided to authorize Senator Cleitinho Azevedo's candidacy for Governor of Minas Gerais ,
article_search	OK	0.9s	24	Fetched 24 unique articles across 4 queries (lookback=60d). 'Cleitinho governador Minas Gerais pesquisa 2026': 10 articles \| 'eleição governador Minas Gerais 2026 Quaest Datafolha': 10 articles \| 'Cleitinho candidatura governo de Minas Zema Simões Kalil': 10 articles \| 'Minas Gerais gubernatorial el
gdelt_news	OK	151.3s	20	GDELT: 20 articles across 3 queries (lookback=45d). 'Cleitinho Azevedo governador Minas Gerais': 10 hits \| 'eleição Minas Gerais 2026 pesquisa governador': error GDELT rate-limited after retries (429) \| 'Mateus Simões Cleitinho pesquisa': 10 hits
wikipedia	OK	0.6s	4	Fetched 4 Wikipedia entries (0 missing pages).
resolution_source	OK	3.6s	1	already_resolved=no; matches_criteria=True; last_updated=unknown. The fetched TSE page only lists archived election result pages by year (1933–2024) and does not contain any 2026 election results, candidate names, or vote totals for the Minas Gerais gubernatorial race.

3. Evidence Brief Sonnet 5 · 7315 chars

# Current state Cleitinho Azevedo (Republicanos) is the officially registered candidate for Governor of Minas Gerais (confirmed Aug 2026), leading first-round polling at 32% (Quaest, Sept 8, 2026) and leading every tested runoff scenario against Patrus Ananias (PT), Alexandre Kalil (PDT), and Mateus Simões (PSD). The first round is Oct 4, 2026 — under 4 weeks away as of the latest polling — making this a near-term election forecast, not a long-horizon one. Resolution hinges on official TSE results; no 2026 results exist yet. # Timeline of key events - 2022: Cleitinho elected Senator for Minas Gerais with 41.52% of the vote (confirmed, Wikipedia). - 2023: Mateus Simões becomes Vice Governor under Zema (confirmed, Wikipedia). - 2026-03-22: Simões assumes the Governorship after Zema's departure (interim; explicitly excluded from resolving as "governor" per market rules) (confirmed, Wikipedia). - 2026-07-25: Flávio Bolsonaro launches presidential bid for PL, signaling national right-wing fragmentation (confirmed, CNBC). - 2026-07-28: Quaest poll: Cleitinho 35% first round; Kalil 12%; Ananias 10%; incumbent-aligned Simões only 6%; Kalil has highest rejection (39%) vs Cleitinho's 20% (reported, Brasil de Fato/Gazeta do Povo). - 2026-07-30: Real Time Big Data poll: Cleitinho 36% first round, +20pt lead in all tested runoffs (reported, Brasil de Fato/Gazeta do Povo). - 2026-08-01/03: Republicanos national leadership briefly withdraws Cleitinho's candidacy in favor of Marcelo Aro (PP), then reverses the decision on Aug 3 after Cleitinho apologizes to party leadership (reported, O Tempo). - 2026-08-08: Republicanos formally confirms Cleitinho's gubernatorial candidacy (confirmed, JOTA/Republicanos official statement). - 2026-08-25: Quaest poll: Cleitinho 29% first round, wins all runoff simulations (reported, Gazeta do Povo). - 2026-09-08: Quaest poll: Cleitinho 32% first round, ahead in every runoff simulation tested (reported, Gazeta do Povo). # Event Will Cleitinho Azevedo win the 2026 Minas Gerais gubernatorial election (first round Oct 4, runoff Oct 25 if needed)? # Outcomes to forecast Yes / No # Kalshi market anchor No Kalshi-direct price was returned for this specific ticker in the research tools provided (only kalshi_related results, which cover unrelated Brazil markets — e.g., a "Renan Santos advance" market at 2%). Treat Polymarket (85.65% YES, below) as the best available cross-platform consensus proxy until a direct Kalshi quote is confirmed. # Resolution source TSE's official results page (tse.jus.br/eleicoes/resultados-eleicoes) was fetched; it currently only lists archived results through 2024 and contains no 2026 data — election hasn't occurred yet, so the resolving condition is unmet as expected. No ambiguity in resolution source designation. # Sub-question answers 1. **Recent polls**: Quaest is the only pollster with granular recent data: Jul 28 (35%), Aug 25 (29%), Sept 8 (32%) first-round; leads all runoff scenarios each time. Real Time Big Data (Jul 30) had him at 36% with 20+pt runoff leads. No Datafolha, Paraná Pesquisas, or AtlasIntel data was found in research. 2. **Candidacy status**: Confirmed. After a brief Aug 1 withdrawal in favor of Marcelo Aro, Republicanos reversed course Aug 3 and formally confirmed his gubernatorial candidacy Aug 8, 2026 (JOTA, O Tempo, Republicanos official). No indication he's running for Senate instead. 3. **Rivals**: Patrus Ananias (PT, ~10-11%) and Alexandre Kalil (PDT, ~12%, but 39% rejection) are the main challengers; incumbent-aligned Mateus Simões (PSD, Zema's chosen successor) polls weakly (~6%). Center-right/left fields are fragmented, not consolidated against Cleitinho. 4. **Endorsements**: Cleitinho secured his nomination independently via Republicanos, without a formal Bolsonaro/PL alliance this cycle. Zema publicly backed Simões (PSD/Kassab-aligned), not Cleitinho — so the traditional Zema/Novo establishment is opposed, yet Cleitinho still leads comfortably. 5. **Polymarket pricing**: 85.65% YES currently; +12.35% over 30 days; 7-day change flat (+0.15%); volume $178.6k over 90 days; price ranged from as low as 0.15% up to 88.6%, consistent with resolving candidacy uncertainty in August followed by a rally on polling leads. 6. **Historical base rate**: Not directly addressed in research. Generally, first-round frontrunners with consistent 20+ point runoff-simulation leads across multiple pollsters within a month of the election have very high (historically >85%) win rates in Brazilian gubernatorial races, though Brazil's runoff system and late undecided/blank votes add some variance. 7. **Legal/scandal risk**: Only identified risk was intra-party turmoil (brief withdrawal by Republicanos in Aug), now resolved. No TSE eligibility challenge, criminal case, or major scandal found in research. # Key facts (high-confidence, factual) 1. [Wikipedia] Zema is term-limited; Simões (interim governor since Mar 2026) doesn't count as "governor" for resolution. 2. [JOTA/Republicanos] Cleitinho's candidacy is officially confirmed as of Aug 8, 2026. 3. [Quaest, Sept 8, 2026] Cleitinho leads first round at 32%, ahead in all runoff scenarios. 4. [Polymarket] Cleitinho priced at 85.65% YES, up sharply (+12.35%) over 30 days. 5. [TSE] No official 2026 results exist yet; resolution pending Oct 4 first round / Oct 25 runoff. # Cross-market signals - Kalshi related: No direct Cleitinho/MG market found; unrelated Brazil markets (presidential) show typical long-shot pricing patterns. - Polymarket: Cleitinho 85.65% YES; nearest rivals Mateus Simões 5.9%, Kalil 2.35%, Patrus Ananias (via "someone else"/Kalil proxies) low single digits — consistent with Cleitinho as dominant favorite across all related markets. - Sportsbook implied: None available. # Analyst opinions and speculation - Brasil de Fato (Jul 28) flagged risk that Cleitinho could "desistir" (withdraw) amid candidacy turmoil — this materialized briefly (Aug 1) but was resolved by Aug 8. - Analysts note his withdrawal wouldn't have transferred votes cleanly to a single rival, implying his current lead is not simply "borrowed" support. # Directional lean per outcome - **Yes**: Consistent, sizable first-round lead (29-36%) across two pollsters over 2+ months; wins every simulated runoff by wide margins; candidacy risk resolved; Polymarket rallying to 85.65%. - **No**: Fragmented rival field could consolidate late; incumbent establishment (Zema/Simões) opposition persists; Kalil's high name recognition could still matter in a runoff; election still ~4 weeks out with room for late shifts; no independent pollster (Datafolha/AtlasIntel) corroboration found. # Gaps / unknowns - No direct Kalshi YES price was retrieved for this ticker — anchor relies on Polymarket proxy. - No Datafolha, Paraná Pesquisas, or AtlasIntel polling found to cross-validate Quaest/Real Time Big Data. - No explicit base-rate study on Brazilian gubernatorial frontrunners' conversion rate this close to election day. # Calibration anchors - Polymarket current price: 85.65% YES (proxy anchor, no direct Kalshi quote available). - Multi-pollster, multi-month consistency of a 20+ point runoff lead within a month of the election is historically a strong (but not certain) predictor of victory in Brazilian state races.

4. Forecasters 5 draws · Fable 5.1 + GPT-5.6 Sol

claude-fable-5-1

58% conf

Yes	83%
No	17%

Cleitinho's candidacy is officially confirmed (Republicanos, Aug 8) and he has led every first-round poll (29-36%) and every runoff simulation across Quaest and Real Time Big Data over 2+ months, with rivals fragmented (Kalil ~12% with 39% rejection, Ananias ~10%, Simões ~6%). Polymarket prices him at 85.65% YES, the best available consensus proxy since no direct Kalshi quote was returned. Residual risk comes from the four-week horizon, a first-round share only in the low 30s that likely forces a runoff, possible late consolidation behind a single rival, and the lack of independent Datafolha/AtlasIntel corroboration, so I shade slightly below the market.

claude-fable-5-1

62% conf

Yes	84%
No	16%

Cleitinho leads the first round at 29-36% across Quaest (Jul 28, Aug 25, Sept 8) and Real Time Big Data, roughly 20 points ahead of Kalil (~12%) and Ananias (~10%), and wins every simulated runoff by wide margins with the lowest rejection among top candidates. His candidacy is officially confirmed (Aug 8) after the brief Republicanos withdrawal episode, removing the main tail risk that had depressed the market in July. Polymarket prices him at 85.65% YES, which I treat as the consensus anchor absent a direct Kalshi quote; I shade very slightly lower for ~4 weeks of remaining campaign, a fragmented field that could partially consolidate, the Zema/Simões establishment opposing him, and the lack of Datafolha/AtlasIntel cross-validation. Historically, frontrunners with consistent 20+ point runoff leads this close to a Brazilian gubernatorial election convert at high rates.

claude-fable-5-1

62% conf

Yes	86%
No	14%

Cleitinho leads the first round at 29-36% across Quaest and Real Time Big Data over two-plus months and wins every simulated runoff, reportedly by 20+ points, with the lowest rejection among major candidates (20% vs Kalil's 39%). His candidacy risk—the brief Aug 1 Republicanos withdrawal—was resolved with formal confirmation on Aug 8, and no legal or scandal risk was identified. With no direct Kalshi quote, Polymarket's 85.65% YES serves as the consensus anchor, which aligns with historical conversion rates for Brazilian gubernatorial frontrunners holding wide runoff leads within a month of voting. Residual risk comes from a likely second round (he's well below 50%), possible late consolidation behind Kalil or Simões, and the lack of Datafolha/AtlasIntel cross-validation.

gpt-5.6-sol

76% conf

Yes	87%
No	13%

Recent polling points toward Yes because Cleitinho leads the first round at 29-36% and wins every tested runoff, including 20-point-plus leads in Real Time Big Data. His confirmed candidacy and the absence of reported legal or scandal risks reinforce Yes, while fragmented, substantially weaker rivals have not consolidated behind a clear alternative. The 85.65% Polymarket YES price is the best available consensus anchor because no direct Kalshi quote was found; I move slightly above it given the consistency across two pollsters and the election being under four weeks away. Remaining No risk comes from limited independent polling coverage, possible late consolidation, and prior intra-party turmoil.

gpt-5.6-sol

78% conf

Yes	87%
No	13%

The 85.65% Polymarket YES price is the best available consensus anchor because no direct Kalshi quote was retrieved. Cleitinho's confirmed candidacy, 29-36% first-round support across Quaest and Real Time Big Data, and victories in every tested runoff point strongly toward Yes, especially with rivals fragmented and far behind. The resolved party dispute and absence of identified legal or scandal risks further support a modest increase above the market anchor. I retain 13% for late consolidation against him, establishment opposition, and the lack of corroborating polls from Datafolha, AtlasIntel, or Paraná Pesquisas.

6. Final plain mean of 5 draws

85% (67% confidence)

Yes: 85% No: 15%

Mean of 5 draws (0.83, 0.84, 0.86, 0.87, 0.87). Cleitinho's candidacy is officially confirmed (Republicanos, Aug 8) and he has led every first-round poll (29-36%) and every runoff simulation across Quaest and Real Time Big Data over 2+ months, with rivals fragmented (Kalil ~12% with 39% rejection, Ananias ~10%, Simões ~6%). Polymarket prices him at 85.65% YES, the best available consensus proxy since no direct Kalshi quote was returned. Residual risk comes from the four-week horizon, a first-round share only in the low 30s that likely forces a runoff, possible late consolidation behind a single rival, and the lack of independent Datafolha/AtlasIntel corroboration, so I shade slightly below the market.

Pipeline Timing

Total pipeline time: 230.7s

Per-tool research timings shown in the Research section above.