Career Arc Trajectories

Every NFL player classified by the shape of their KV-H career — how they rose, peaked, and faded. Based on era-normalized Knox Value ratings (1999–present).

4,784 players classified·6 trajectory types·KV-H basis

Arc Comparison Matrix

Same classifier, joined to Canton Monitor and VORP. Missing HOF/VORP rows are excluded from averages, so every column is source-backed rather than filled.

Highest HOF rate · Sustained Machine

Arc	Players	Eligible HOF	Avg HOF Prob.	Avg VORP/s	Peak Timing	Detail
Sustained Machine	71	12% (5/43)	15%	30.0	0.45	Open
Mountain Arc	147	5% (5/102)	10%	25.9	0.46	Open
Late Developer	747	1% (6/442)	6%	25.4	0.77	Open
Early Bloomer	964	4% (25/701)	7%	26.6	0.16	Open
Shooting Star	1,512	1% (6/1008)	3%	23.8	0.44	Open
Standard	1,343	1% (6/855)	5%	27.3	0.45	Open

⚙️

Sustained Machine

71 players

Elite for nearly their entire career — rare consistency at a high level over 8+ seasons.

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Showing top 20 of 71 Sustained Machine players by KV-H score.

⛰️

Mountain Arc

147 players

The classic build → peak → decline arc — rose to a dominant peak, then faded.

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Showing top 20 of 147 Mountain Arc players by KV-H score.

📈

Late Developer

747 players

Peaked in the back half of their career — got better with age.

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Showing top 20 of 747 Late Developer players by KV-H score.

🌅

Early Bloomer

964 players

Peaked in the first third of their career — came in fast and hot.

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Showing top 20 of 964 Early Bloomer players by KV-H score.

⭐

Shooting Star

1,512 players

One or two seasons that define the entire career — brief but incandescent.

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Showing top 20 of 1,512 Shooting Star players by KV-H score.

📊

Standard

1,343 players

A varied career arc that doesn't conform to a single pattern.

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Showing top 20 of 1,343 Standard players by KV-H score.

Classification based on KV-H (Knox Value-Historical) spark arrays from the StatVault encyclopedia (1999+). Active players are classified based on their career arc to date. Arc type is based on peak timing, career consistency, and build/decline pattern — not absolute value.