How Does the NFL Injury Report Work, and How Does It Move Betting Lines?

The NFL injury report is a league-mandated disclosure that every team files on a fixed schedule each game week. For a Sunday game, teams report practice participation on Wednesday, Thursday and Friday, and attach a game status (Out, Doubtful or Questionable) to injured players on Friday. The last piece of the picture arrives on game day, when each team submits its inactive list 90 minutes before kickoff.

Betting lines move at each of those points, and they move hardest on quarterbacks. A bettor who knows the schedule knows when information arrives, and roughly when the price will change to reflect it.

What the league requires teams to report

The rules below come from the league's 2017 Personnel (Injury) Report Policy, the most recent full text we could find published; the league's injury page, checked on 27 September 2026, still uses the same practice and game-status categories.

The policy exists for the integrity of the game. Its text says the information "must be credible, accurate, timely, and specific", and a violation can bring Commissioner discipline including a fine on the club, fines or suspensions for individuals, and forfeited draft picks. The report has three parts: a Practice Report, a Game Status Report and an In-Game Injury Report.

The Practice Report lists every player with a reportable injury, even one who took every rep and is certain to play. Each is placed in one of three categories, defined by share of normal repetitions:

• Did Not Participate (DNP): zero percent.
• Limited Participation: less than 100 percent, including a player who did individual drills but not the team portion, or who left practice hurt.
• Full Participation: 100 percent.

A player held out for rest, discipline or a personal matter is listed as Not Injury Related, and the policy forbids using that label for an injured player. Injuries must be specific (ankle, knee, thigh or calf, not "leg"), and for quarterbacks the report must say whether an arm or hand injury is on the left or right side.

The schedule depends on the day of the game:

Game day	Practice reports	Game status report
Sunday	Wednesday, Thursday, Friday	Friday
Monday	Thursday, Friday, Saturday	Saturday
Thursday	Monday, Tuesday, Wednesday	Wednesday
Saturday	Tuesday, Wednesday, Thursday	Thursday

Reports are due by 4:00 p.m. New York time on each reporting day, or as soon as possible after practice. A change after the game-status deadline that could affect whether a player plays must be reported immediately.

The Game Status Report uses three categories:

• Out: will not play.
• Doubtful: unlikely to play.
• Questionable: uncertain whether the player will play.

There used to be a fourth. The league dropped "Probable" for the 2016 season after finding that about 95% of players listed as probable played. A player the team expects to play now carries no game status at all, even if he appeared on the practice report all week.

Inactives: the 90-minute mark

On game day each team names the players on its roster who will not dress. The league requires the list 90 minutes before kickoff. NFL Football Operations describes that moment as the pre-game officiating meeting at which each club's public-relations staff hands the referee its Game Day Administration Report, which includes the inactive list.

Everything unresolved on Friday resolves here. A Questionable player is either active or not. For player props, the difference is total: DraftKings' filed rules void a prop on a player who does not play at least one play, unless the market is labelled "all-in" or similar. For a spread, moneyline or total, nothing voids. Neither book's filed football rules contains a provision that cancels a side or total because a player sits, so if you bet a team on Tuesday and its quarterback is inactive on Sunday, your bet stands at the price you took. The one rule that cuts the other way is about timing: DraftKings' filed rules treat a bet accepted after news that affects its odds, but before the book has updated them, as an error it can void (its own example is a starting running back ruled out), so a bet that beats the book to an inactive list can still be voided.

How injury news moves lines

The market prices each piece of news as it arrives, which means the injury report's schedule is also the market's schedule.

Wednesday. The first practice report is the first official signal. Read it with the policy in mind: a veteran held out for a planned rest day should be listed as Not Injury Related, so a DNP with a body part next to it is an injury, not a day off. A DNP after a Sunday injury is the one that tends to matter.

Thursday and Friday. Movement from DNP to Limited to Full is the signal bettors watch. A player who goes DNP, DNP, DNP and is listed Questionable is in a very different position from one who went Limited, Full, Full. For a Sunday game, Friday is the first time the team has to say, officially, who will not play.

Sunday, 90 minutes out. The inactive list settles the remaining questions, and a surprise on it can move lines and props within minutes. For a bettor, this is the last window in which injury information is new.

Why quarterbacks move lines most

No other position changes a team's expected scoring as much, and the spread has to absorb the whole change at once. Consider an illustrative game where a team is −170 on the moneyline with its starter. Its implied probability is 170 / 270 = 63.0%. If the starter is ruled out and the market decides the backup makes this roughly a coin flip, the team might reprice to +105, or 100 / 205 = 48.8%. That is a 14-point swing in win probability from one name on one list.

The size of the move depends on the gap between starter and backup, not on the starter's reputation alone. A team with a capable veteran backup moves less than one starting a rookie who has never taken a regular-season snap. It also depends on timing: news on Wednesday gives the market four days to settle, while a surprise inactive gives it about 90 minutes.

Other positions matter less individually and more in clusters. One missing cornerback rarely moves a spread by much; three missing offensive linemen can. And a player's absence moves his teammates' props even when it barely touches the spread: a receiver's target share, a backup running back's carries. The player props guide covers how that flows through.

Using the report without fooling yourself

The market reads the report too. Every practice report posts publicly, on the league's own injury page among other places. By the time you see a DNP, so has everyone else, including the books' traders. The information is only an edge if you interpret it better or faster than the price does.

Questionable is a wide category. It covers players who will almost certainly play and players who almost certainly will not. The practice pattern behind the status tells you more than the status itself.

Betting early carries the injury risk. A bet placed before the report comes out means you are taking the risk the market will reprice against you, and nothing in the house rules protects a side or total. That can be the right trade when you think a price is wrong, but make it deliberately. The Academy's guide to fair odds shows how to judge whether a moved line has gone too far or not far enough, and its sharp sportsbooks guide explains why some books move before others.

Sports betting is legal only in some states and only for adults 21 and over in most. The prices in the quarterback example are illustrative.