Why the NFL Still Uses Chains to Measure First Downs
Unchained? Technology exists if the NFL wants to measure first downs with precision | Broncos preview | Sports | gazette.com
NFL's first-down chains malfunctioned twice on road to Super Bowl. Is there a better way? - The Athletic
Super Bowl LIV: How NFL Measures First Downs Is Primitively Low-Tech
Why the NFL Still Uses Chains to Measure First Downs
Ball Placement - The Art & Science - Referee.com
Unchained? Technology exists if the NFL wants to measure first downs with precision | Broncos preview | Sports | gazette.com
Everything you ever wanted to know about the crew that moves the chains in the NFL - ESPN
NFL chain gangs: Everything you need to know about the crews who man the down markers - Sports Illustrated
The History of Using the Chains to Measure a First Down | NFL Films Presents - YouTube
NFL chain gangs: Everything you need to know about the crews who man the down markers - Sports Illustrated
Chain gangs have 'best seat in the house' and are an important part of football tradition
Why the NFL Still Uses Chains to Measure First Downs
Time to trade the NFL chains for lasers – The Denver Post
Ask Sam Farmer: Why does the NFL use just one set of first-down chains when they have two on the field? - Los Angeles Times
/cdn.vox-cdn.com/uploads/chorus_image/image/58058933/ChainGangs_AP_Ringer.0.jpg "We Must Protect Football's Chain Gang at All Costs - The Ringer")
We Must Protect Football's Chain Gang at All Costs - The Ringer
NFL chain gangs: Everything you need to know about the crews who man the down markers - Sports Illustrated
NFL should at long last trade chains for lasers when marking 1st downs – The Denver Post
Steelers First Down Measurement Versus Browns With Referee Explantation - Steelers Depot
/cdn.vox-cdn.com/uploads/chorus_image/image/71892475/1060182000.0.jpg "Broken 1st-down chain temporarily pauses Giants-Eagles Divisional Round game - SBNation.com")
Broken 1st-down chain temporarily pauses Giants-Eagles Divisional Round game - SBNation.com
In Silicon Valley, a Time-Honored Sport Looks to the Future - The New York Times
Chain crew - Wikipedia
:max_bytes(150000):strip_icc()/GettyImages-457406155-5663dc1e5f9b583dc376f8bf.jpg "The Chain Gang in Football - Role and Responsbilities")
The Chain Gang in Football - Role and Responsbilities
Why Does the NFL Still Use Chains to Measure First Downs?
Why the NFL Still Uses Chains to Measure First Downs
Move the Chains. Don't focus on scoring a touchdown… | by Seth Miller | Medium
Cleveland Browns: What constitutes a first down in the NFL?
