**The 2026-27 Botola Pro season opens in mid-to-late September with no matches played yet, leaving the clean-sheet market driven by historical defensive trends, squad continuity, and expectations for organized backlines rather than current form.** RS Berkane, Hassania Agadir, Difaâ El Jadida, and Moghreb Tétouan sit at the front of trader pricing (47-49%) because these clubs have posted respectable clean-sheet rates and low goals-conceded figures in recent campaigns, supported by experienced goalkeepers and compact defensive structures that limit high-quality chances. Raja Casablanca, Wydad Casablanca, FAR Rabat, and others cluster just behind at 43%, reflecting the league’s overall parity in defensive organization and the absence of any dominant side with a clear edge in recent seasons. Last year’s leaders (Raja and Maghreb Fès with 16 clean sheets each) illustrate how results can shift with minor roster tweaks or tactical changes, keeping the field competitive. With the campaign yet to begin, implied probabilities remain tightly bunched as traders weigh comparable factors—home/away defensive splits, set-piece resilience, and goalkeeper reliability—without decisive new data to separate the contenders. This setup underscores the market’s view of a level playing field where several teams retain realistic chances of topping the clean-sheet table.