Draft Class Strength Rating Calculator
Evaluate the overall strength of a draft class by combining top prospect grades, class depth, and positional scarcity into a single 0–100 rating.
Formula
Tier Score (each tier)
TierScore = min(TierCount / (TierNorm × N), 1) × AvgGrade
where TierNorm = 10% (Elite), 30% (Solid), 40% (Fringe)
Depth Score
DepthScore = min((EliteCount + SolidCount + FringeCount) / N, 1) × 100
Raw Weighted Score
RawScore = 0.50 × EliteScore + 0.30 × SolidScore + 0.10 × FringeScore + 0.10 × DepthScore
Adjustments
PosBonus = (PosScarcity / 10) × 5
InjPenalty = (InjuryRisk / 10) × 10
Final Rating
FinalRating = clamp(RawScore + PosBonus − InjPenalty, 0, 100)
Assumptions & References
- Prospect grades follow the traditional 20–80 scouting scale, re-mapped here to 0–100 for simplicity.
- Elite prospects (grade 80–100) are weighted most heavily (50%) as they drive franchise value.
- Solid prospects (grade 60–79) represent reliable contributors and carry 30% weight.
- Fringe prospects (grade 40–59) add depth and carry 10% weight.
- Depth score (10%) rewards classes where a large proportion of prospects are graded in any tier.
- Positional scarcity bonus (up to +5 pts) reflects premium positions (e.g., QB, LT, EDGE) being well-represented.
- Injury/risk penalty (up to −10 pts) accounts for widespread medical or character concerns across the class.
- Normalization thresholds (10% elite, 30% solid, 40% fringe) are based on historical NFL/NBA draft distributions.
- Letter grades: A+ ≥ 90, A ≥ 80, B+ ≥ 70, B ≥ 60, C+ ≥ 50, C ≥ 40, D ≥ 30, F < 30.
- References: NFL Draft Scout grading methodology; ESPN Draft Class Rankings; The Athletic prospect tiering frameworks.