**The Laviolette–Saint-Maurice riding features a tight four-way contest ahead of the October 5, 2026 Quebec election, with trader prices reflecting uncertainty among the leading candidates.** Guy Veillette (CAQ), Élodie Murphy-Gauthier (PQ), Charles Paquin (PCQ), and Laurent Bélisle (Liberal) hold the highest implied probabilities, clustered near 42–43.5 percent amid broader provincial volatility following the CAQ’s long tenure in government. The seat, previously held by retiring CAQ MNA Marie-Louise Tardif, shows CAQ and PQ vote shares nearly tied in recent projections (around 30–34 percent each), with PCQ support elevated locally compared to the provincial average. Key factors sustaining the deadlock include strong regional candidate profiles—Veillette’s journalism and constituency experience for the CAQ and Murphy-Gauthier’s health-sector background for the PQ—plus ongoing campaign dynamics after the August 27 writ drop. Further polling shifts, party leader events in the Mauricie region, or late nomination developments before the September 17 deadline could widen gaps before election day.