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Do some receivers genuinely beat man coverage?
Verdict — Not a traitMeasure how much better a receiver performs against man than against zone, then check whether that edge repeats within the same season. It does not. The correlation is −0.001 — the closest thing to literal zero this dataset produces.
“He feasts against man coverage” is a staple of matchup analysis, and the coverage data exists to check it.
| Quantity | Split-half r | Reads as |
|---|---|---|
| A defense's man-coverage rate | 0.84 | a stable, deliberate choice |
| A receiver's edge against man | −0.001 | nothing at all |
The distinction that matters. Coverage matchup does move things — it shifts which position group gets thrown to by a wide margin. What it will not tell you is which individual receiver to start.
Worth knowing: the league’s coverage labels stop after 2023, so this cannot currently be recomputed on recent seasons. We say so rather than quietly extending the window.
How this was measured
Coverage labels come from the NFL’s own participation data, available 2018–2023. For each receiver-season we take his average expected points added against man minus the same against zone, then correlate odd weeks against even weeks. Receiver-seasons with at least three weeks of each: 925.