DE#0JAX
John Duff
BuildParlays AI surfaces volatility insights, depth chart roles, and recent production to help you build sharper NFL parlays. Track John Duff’s trajectory every week.
- Team: Jacksonville Jaguars
- Height: 79
- Weight: 262 lbs
- Experience: 2 years
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John Duff 2026 Game Log
Weekly production and fantasy output for the 2026 season.
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Interactive Tools
Charts, probability calculator, and volatility analysis for John Duff.
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Player Bio
Verified data sourced from the BuildParlays Turso data warehouse.
- Position
- DE
- Team
- Jacksonville Jaguars
- Jersey
- #0
- Status
- RES
- Height
- 79
- Weight
- 262 lbs
- Experience
- 2 years
- Birth Date
- July 31, 1967
- Player ID
- DUF318148