The Marina Bay street circuit's narrow layout, concrete barriers hugging the racing line, 19 low-speed corners, and bumpy surface create persistent incident risk through crashes, debris, or stranded cars, especially during the night race when driver fatigue from humidity builds. Historical data shows safety car deployments in nearly every prior edition until recent exceptions, with the 2026 cars' one-stop strategy and limited overtaking expected to keep the field compressed and amplify first-lap or mid-race errors. A competitive 2026 grid featuring Verstappen, Antonelli, Norris, and the Ferraris further raises the chance of close-quarters contact, while the Sprint format adds another high-stakes session. These circuit and situational factors underpin the strong trader consensus reflected in the current implied probability for a safety car appearance.