This contract is a Kalshi event on the margin of victory for Flávio Bolsonaro in the 2026 Brazilian presidential runoff in the state of Minas Gerais [1]. Its rules define the margin as the share of valid votes in Minas Gerais, excluding blank and null votes, that Flávio Bolsonaro receives minus the share received by the candidate who finishes immediately behind him [1]. If he loses, the comparison runs against the candidate who finishes first, so the margin is negative [1]. The saved event contains eight separate "at least" contracts. Each asks whether the margin will reach a stated percentage, and the thresholds in the saved data run from 1% to 16% [1]. Each one is a separate yes or no question. A market being priced differently from another does not, by itself, indicate an arbitrage opportunity, because each threshold resolves on its own terms. The rules set specific boundary conventions. Each range includes its lower bound and excludes its upper bound, and no rounding is applied. A margin of 5.99999% would fall in a 5% to 6% range, while exactly 6% would fall in the 6% to 7% range [1]. If Flávio Bolsonaro appears under several parties or listings, votes for the same underlying candidate are summed [1]. A tie for first place produces a margin of zero, and the rules note that the market will close and expire early if certified election results are published [1]. The provider lists the event as active and states that no listed end time was supplied [1]. The saved data also includes a field showing an end date in 2027, which the provider's own rules text does not reconcile with the stated runoff date, so the rules text should be treated as the controlling description of timing. The rules refer to October 25, 2026 as the date of the runoff, but that is a date stated in the contract rules and does not on its own confirm when results will be published or when the market will be settled. The sources supplied for this article do not describe the 2026 campaign, polling, or the broader race beyond the contract rules, so this explanation is limited to what the contract measures and how it is defined.

Historical Context

The supplied background sources describe Brazil's recent presidencies. Luiz Inácio Lula da Silva is described as having served as president from 2003 to 2011 and again since 2023, and as a member of the Workers' Party [2]. Dilma Rousseff is described as the 36th president of Brazil from 2011 until her impeachment and removal from office on 31 August 2016, and as the only woman to have held the presidency to date [3]. These sources do not address the 2026 runoff or the Minas Gerais contract, so they provide only general context for the Brazilian presidency.

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