![Manatee will have one of the toughest schedules among Class 5A teams in 2025. [Joshua Wilson/FloridaHSFootball.com]](https://floridahsfootball.com/wp-content/uploads/2025/08/FPRI-Class-5A-OSI-toughest-schedules-for-2025.jpg)
The Opponent Strength Index (OSI) provides a preseason snapshot of the overall strength of schedule for Class 5A 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. Heritage (Palm Bay)
District: 5A-13
Preseason OSI: 63.79
2. Leon
District: 5A-2
Preseason OSI: 63.06
3. St. Thomas Aquinas
District: 5A-15
Preseason OSI: 61.02
4. Lakeland
District: 5A-6
Preseason OSI: 60.85
5. Lincoln
District: 5A-2
Preseason OSI: 60.03
6. Manatee
District: 5A-9
Preseason OSI: 59.25
7. Kathleen
District: 5A-6
Preseason OSI: 58.32
8. Atlantic (Delray Beach)
District: 5A-14
Preseason OSI: 55.69
9. Blanche Ely
District: 5A-14
Preseason OSI: 54.62
10. Tampa Bay Tech
District: 5A-8
Preseason OSI: 52.54
To see the remaining OSI rankings for Class 5A, 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 5A football.
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