The Opponent Strength Index (OSI) provides a preseason snapshot of the overall strength of schedule for Class 6A programs heading into the 2025 season. The higher the OSI rating, the tougher the schedule a team is expected to face. As the season unfolds, the OSI will update weekly based on results, reflecting both performance and the quality of competition. It also serves as one of several key components in the Florida Power Rankings Index (FPRI), which delivers a comprehensive measure of team strength across the state.
1. Buchholz
District: 6A-3
Preseason OSI: 67.81
2. Monarch
District: 6A-13
Preseason OSI: 63.66
3. Palm Beach Gardens
District: 6A-12
Preseason OSI: 61.63
4. Wiregrass Ranch
District: 6A-9
Preseason OSI: 59.85
5. Navarre
District: 6A-1
Preseason OSI: 57.00
6. Seminole Ridge
District: 6A-12
Preseason OSI: 56.63
7. West Broward
District: 6A-15
Preseason OSI: 56.45
8. Dwyer
District: 6A-12
Preseason OSI: 56.45
9. Gateway (Fort Myers)
District: 6A-11
Preseason OSI: 55.32
10. West Boca Raton
District: 6A-12
Preseason OSI: 54.96
To see the remaining OSI rankings for Class 6A, become a Premium Season Ticket Member or Premium Monthly Season Ticket Member or login below if you already have a membership.
These Preseason OSI rankings will evolve weekly throughout the 2025 season as games are played, offering an updated look at the toughest schedules in Class 6A football.









![Buchholz will have the toughest schedule for the 2025 season among Class 6A teams. [Joshua Wilson/FloridaHSFootball.com]](https://floridahsfootball.com/wp-content/uploads/2025/08/FPRI-Class-6A-OSI-toughest-schedules-for-2025-750x422.jpg)
![Robinson continues to hold the No. 1 spot in the FLORIDA POWER 25 rankings going into Week 3. [Robinson Flag Football/Instagram]](https://floridahsfootball.com/wp-content/uploads/2026/03/Announcement-Landscape-13-120x86.jpg)




![Wellington moves up to the top spot in the South Florida Rankings, according to the Florida Power Rankings Index after Week 2 [Wellington Flag Football/Instagram]](https://floridahsfootball.com/wp-content/uploads/2026/03/Announcement-Landscape-12-120x86.jpg)
![Both Lake Mary and Venice are among the Class 7A teams with the toughest schedules for 2025. [Joshua Wilson/FloridaHSFootball.com]](https://floridahsfootball.com/wp-content/uploads/2025/08/FPRI-Class-7A-OSI-toughest-schedules-for-2025-75x75.jpg)
