**Both leading candidates have publicly committed to head-to-head debates in the runoff, with at least one major event scheduled before the October 25 vote.** After skipping all first-round debates—Lula citing multi-candidate formats and limited speaking time, and Flávio aligning with that approach—the president and Senator Flávio Bolsonaro signaled a shift once the race narrowed to the two of them. On October 5, Lula stated that direct television debates were now important for a “tête-à-tête” comparison. Flávio echoed this on October 6, saying he had long wanted such confrontations to contrast government records and platforms, and confirmed his participation. Media outlets quickly organized events. A Band/Estadão/Cultura/Gazeta/Jovem Pan pool debate, initially eyed for October 11, was rescheduled for October 18 at 8 p.m. Lula reiterated on October 9 that his campaign would attend second-round debates, while allies confirmed intent to join the largest possible number. No procedural, legal, or logistical barriers have emerged to block these plans, and the short window before the runoff favors at least one televised encounter. Traders therefore assign an 82.2% implied probability to a debate occurring, reflecting the candidates’ explicit commitments and the confirmed scheduling.