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).

Rankings as of 2026-10-15, as declared by the corpus that produced them.

5,801 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	131	10% (10/98)	9%	29.1	0.39	Open
Mountain Arc	196	6% (9/151)	8%	25.4	0.46	Open
Late Developer	977	4% (24/664)	4%	25.2	0.76	Open
Early Bloomer	1,257	5% (50/990)	5%	26.8	0.17	Open
Shooting Star	1,638	0% (1/1122)	1%	--	0.45	Open
Standard	1,602	2% (18/1116)	3%	26.5	0.46	Open

⚙️

Sustained Machine

131 players

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

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Showing top 20 of 131 Sustained Machine players by KV-H score.

⛰️

Mountain Arc

196 players

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

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Showing top 20 of 196 Mountain Arc players by KV-H score.

📈

Late Developer

977 players

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

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Showing top 20 of 977 Late Developer players by KV-H score.

🌅

Early Bloomer

1,257 players

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

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Showing top 20 of 1,257 Early Bloomer players by KV-H score.

⭐

Shooting Star

1,638 players

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

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Showing top 20 of 1,638 Shooting Star players by KV-H score.

📊

Standard

1,602 players

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

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Showing top 20 of 1,602 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.