![Columbia has one of the toughest schedules among Class 4A teams for the 2025 season. [X/@CHSTigerPride_]](https://floridahsfootball.com/wp-content/uploads/2025/08/FPRI-Class-4A-toughest-schedules-for-2025.jpg)
The Opponent Strength Index (OSI) provides a preseason snapshot of the overall strength of schedule for Class 4A 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.
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 4A football.
1. American Heritage (Plantation)
District: 4A-15
Preseason OSI: 83.12
2. Miami Norland
District: 4A-15
Preseason OSI: 72.87
3. Rickards
District: 4A-2
Preseason OSI: 63.11
4. Plantation
District: 4A-15
Preseason OSI: 61.65
5. Port Charlotte
District: 4A-12
Preseason OSI: 60.07
6. Lake Wales
District: 4A-7
Preseason OSI: 59.71
7. Pine Forest
District: 4A-1
Preseason OSI: 58.65
8. Columbia
District: 4A-3
Preseason OSI: 57.75
9. Riverside
District: 4A-4
Preseason OSI: 56.26
10. Gainesville
District: 4A-5
Preseason OSI: 55.35
To see the remaining OSI rankings for Class 4A, 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 4A football.
![Bishop Moore has surged into the Florida Power 25 rankings and is 8-0 on the season [Instagram/Bishop Moore Catholic Athletics]](https://floridahsfootball.com/wp-content/uploads/2025/10/FPRI-Florida-Power-25-Rankings-following-Week-9-Featured-120x86.jpg)
![Evans has made significant moves in the FPRI rankings and has now made a late season surge after defeating Lake Mary last week [Instagram/Evans High School | DVT Progam]](https://floridahsfootball.com/wp-content/uploads/2025/10/FPRI-Top-10-Classification-Rankings-following-Week-9-Featured-120x86.jpg)
![Winter Haven is a favorite this week and could win a district championship as well in their Week 10 contest. [X/@WHCoachWhite]](https://floridahsfootball.com/wp-content/uploads/2025/10/FPRI-Forecast-Week-10-Featured-120x86.jpg)
![St. Augustine is a heavy favorite in their Week 10 game. [X/@SAHSJackets]](https://floridahsfootball.com/wp-content/uploads/2025/10/FPRI-Projected-Scores-Week-10-Featured-120x86.jpg)
![Carey Metts (left) and George Wade (right) are currently leading Orangewood Christian and Eustis respectively. However, they are not expected to be the leaders in charge come the 2026 season [Courtesy of Orangewood Christian & X/@GWadeFF]](https://floridahsfootball.com/wp-content/uploads/2025/10/Orangewood-Christiand-and-Eustis-coaching-openings-Featured-120x86.jpg)
![Tyronn Johnson was dismissed on Monday as the head coach at the Miami Norland Vikings after going 4-5 with one game remaining on the 2025 schedule and playoff fate undetermined going into Week 10. [X/@JohnsonTyronn]](https://floridahsfootball.com/wp-content/uploads/2025/10/Tyronn-Johnson-Miami-Norland-Football-Head-Coach-Featured-120x86.jpg)
![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-2025-75x75.jpg)
![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-2025-75x75.jpg)
