In the Italian Grand Prix at Monza, FP1 fastest-lap markets show tight clustering around 40% implied probability across the field because opening practice sessions prioritize setup work, varying fuel loads, and tire compounds over outright pace. Teams often run low-grip programs or test components, flattening the leaderboard and giving midfield runners realistic shots at the top time. Recent form, track evolution, and weather variables further compress margins, as historical FP1 results at this high-speed circuit frequently feature surprise leaders from different constructors before qualifying sharpens the hierarchy.