Hypothetical second-round match-up polled before the 4 October 2026 first round (PSD candidate). The actual runoff is Lula v Flávio Bolsonaro. 124 polls.
Share approving and disapproving of President Lula, from CB Consultora's (later CB Global Data) regional ranking of presidents; net is approve minus disapprove. Compiled from successive versions of Wikipedia's approval-rating list; the March and November 2025 readings are dated by month only.
| Fieldwork | Pollster | Question | Result |
|---|---|---|---|
| 2–3 Oct 2026 | Futura | 2026 runoff hypothetical: Lula v Caiado | Lula 44%Caiado 44.7% |
| 30 Sep – 3 Oct 2026 | Palver | 2026 runoff hypothetical: Lula v Caiado | Lula 43%Caiado 42% |
| 30 Sep – 3 Oct 2026 | Palver | 2026 runoff hypothetical: Lula v Zema | Lula 44%Zema 42% |
| 30 Sep – 3 Oct 2026 | Palver | 2026 runoff hypothetical: Lula v Santos | Lula 44%Santos 33% |
| 30 Sep – 3 Oct 2026 | Palver | 2026 runoff hypothetical: Lula v Cury | Lula 44%Cury 36% |
| 29 Sep – 2 Oct 2026 | MDA | 2026 runoff hypothetical: Lula v Caiado | Lula 47%Caiado 37% |
| 29 Sep – 2 Oct 2026 | MDA | 2026 runoff hypothetical: Lula v Zema | Lula 49%Zema 34% |
| 29 Sep – 2 Oct 2026 | MDA | 2026 runoff hypothetical: Lula v Santos | Lula 48%Santos 34% |
| 29 Sep – 2 Oct 2026 | MDA | 2026 runoff hypothetical: Lula v Cury | Lula 47%Cury 38% |
| 29 Sep – 1 Oct 2026 | Vox Brasil | 2026 runoff hypothetical: Lula v Caiado | Lula 46.3%Caiado 42.1% |
| 29 Sep – 1 Oct 2026 | Vox Brasil | 2026 runoff hypothetical: Lula v Cury | Lula 46.8%Cury 33.1% |
| 28–30 Sep 2026 | Datafolha | 2026 runoff hypothetical: Lula v Caiado | Lula 48%Caiado 42% |
| 26–30 Sep 2026 | Real Time | 2026 runoff hypothetical: Lula v Caiado | Lula 45%Caiado 43% |
| 28–30 Sep 2026 | Datafolha | 2026 runoff hypothetical: Lula v Zema | Lula 49%Zema 40% |
| 26–30 Sep 2026 | Real Time | 2026 runoff hypothetical: Lula v Zema | Lula 45%Zema 40% |
| 28–30 Sep 2026 | Datafolha | 2026 runoff hypothetical: Lula v Santos | Lula 48%Santos 39% |
| 26–30 Sep 2026 | Real Time | 2026 runoff hypothetical: Lula v Santos | Lula 45%Santos 38% |
| 28–30 Sep 2026 | Datafolha | 2026 runoff hypothetical: Lula v Cury | Lula 47%Cury 42% |
| 26–30 Sep 2026 | Real Time | 2026 runoff hypothetical: Lula v Cury | Lula 45%Cury 44% |
| 27–29 Sep 2026 | Indexa | 2026 runoff hypothetical: Lula v Caiado | Lula 43%Caiado 40% |
| 25–29 Sep 2026 | Futura | 2026 runoff hypothetical: Lula v Caiado | Lula 42.4%Caiado 45.6% |
| 27–29 Sep 2026 | Indexa | 2026 runoff hypothetical: Lula v Zema | Lula 43%Zema 36% |
| 25–29 Sep 2026 | Futura | 2026 runoff hypothetical: Lula v Zema | Lula 45.1%Zema 42.2% |
| 27–29 Sep 2026 | Indexa | 2026 runoff hypothetical: Lula v Santos | Lula 44%Santos 38% |
| 25–29 Sep 2026 | Futura | 2026 runoff hypothetical: Lula v Santos | Lula 44.6%Santos 40.7% |