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NFL Lockdown Report: The NFL's best defenders at preventing separation in coverage

2Y1BCKM Kansas City Chiefs cornerback Trent McDuffie (22) celebrates a failed touchdown by the Baltimore Ravens at the end of their NFL football game, Thursday, Sept. 5, 2024 in Kansas City, Mo. The Chiefs defeated the Ravens by a score of 27-20. (AP Photo/Reed Hoffmann)

• Chiefs' Trent McDuffie continues his dominance: McDuffie prevented separation on 78.57% of his opportunities in Week 15. The Chiefs corner leads the NFL in Lockdown Percentage on the season (67.91%).

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Estimated reading time: 5 minutes


It’s never too early to start preparing for next season, and for PFF, that means looking at ways to improve PFF Premium Stats. One way we’re looking to enhance the experience is by introducing more data into the mix.

Over the last couple of weeks, we have presented a new metric we’ve coined “Lockdown Percentage,” which identifies The NFL's best defenders at preventing separation in coverage.

Here is how the league's defenders have fared after 15 weeks of action.

What is Lockdown Percentage? 

This metric focuses on coverage, measuring how well a defender prevents a receiver from getting open. It excludes plays where the defender intentionally gives up space to protect the first-down marker or limit yards after the catch.

Week 15 lockdown report (min. 6 opportunities)

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