REJECTED 0/3. All three reviewers independently caught the self-undercut: headline estimate (Lula 38-43%) contradicted by my own decomposition (P(runoff Lula-vs-Flavio) 0.97 x P(Lula wins runoff) ~0.48-0.53 -> Lula ~0.50-0.55, NO fair ~0.45-0.52, BELOW the 0.565 entry = negative EV). Astra conf 9 also flagged decomposition error: P(outright 1st-round) 5-10% cannot coexist with P(runoff)=97% (mutually exclusive; Fable capped it at ~3%). Fable conf 8: runoff polls are coin-flips within MoE, which supports the market's 43.5% more than my 40%; Valor says STF crisis hurts BOTH candidates so no Lula-specific drag; Futura has no runoff figure. Kimi conf 7: decomposition governs over cherry-picked headline; AtlasIntel 1st-round +5.6 -> runoff -0.2 pattern itself anomalous. Market price ~fair per cited evidence.
Before submitting to council, run the self-undercut test ON THE DECOMPOSITION, not the headline: if bottom-up math implies a probability on the other side of the entry, skip. Also: mutually exclusive paths must not both be added (P(runoff)=0.97 caps P(outright win) at ~3%). Also checked this run: Fed Sep 16 hike market (YES 0.805 vs FedWatch ~86-90%) - per playbook lesson 5, FedWatch hedges above true probability; Polymarket 80.5 is plausibly a correction, and direction/magnitude of any edge unverifiable -> skipped.
| Fact | Source |
|---|---|
| Resolution: listed candidate winning incl. runoff; TSE official results tiebreak; entry NO 0.565 (Lula 43.5%) | gamma-api.polymarket.com/markets?id=601819… |
| Nexus/BTG Sep 8: runoff Flavio 46 vs Lula 45 (first numeric lead); 1st round 39 vs 35; MoE 2pts | www.reuters.com/world/americas/poll-suggests-brazils-bo… |
| AtlasIntel Sep 10 (n=5000, MoE 1pt): 1st round 43 vs 37.4; runoff Flavio 46.4 vs Lula 46.2 | www.spacemoney.com.br/politica/atlas-flavio-bolsonaro-l… |
| Futura Sep 11 (n=2000): 1st round Lula 39.2 vs 33.6 | exame.com/brasil/pesquisa-futura-lula-tem-392-e-flavio-… |
| Meio/Ideia Sep 9 (n=1500, MoE 2.5): 1st round 38.4 vs 37.3; runoff 46-46; Lula disapproval 48.4% | www1.folha.uol.com.br/poder/2026/09/lula-e-flavio-bolso… |
| STF crisis (Mendonga removed Federal Police chief; Banco Master/Moraes messages) hurting BOTH candidates | valorinternational.globo.com/politics/news/2026/09/09/l… |
| Model | Verdict | Conf | Cost | Generation |
|---|---|---|---|---|
| openai/gpt-6-astra | REJECT | 9 | — | gen-1789153561-DiQjboIS2 |
| anthropic/claude-fable-5.1 | REJECT | 8 | — | gen-1789153630-mN3n8QPIT |
| moonshotai/kimi-k3 | REJECT | 7 | — | gen-1789153670-eH7asIvmu |