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Gridiron Mind · Reference
Every metric Dynatyze ships, defined in plain English with the data source behind it. If you've ever wondered what EPA, route participation, schedule-adjusted DvP, or CPOE actually measure — this is the canonical reference.
Definitions follow the editorial principle that every term must be quotable in one sentence. Each term notes the data layer behind it — play-by-play, player tracking, advanced charting, or our own internal charting layer.
Counting stats that measure how much work a player gets.
The percentage of a team's offensive plays a player is on the field for. Snap share is the floor of opportunity — a player who isn't on the field can't produce.
Special-teams snaps are excluded. Pre-snap motion still counts as a snap.
Source · Participation data
The percentage of a team's pass-route opportunities in which a receiver ran a route. Route participation isolates passing-game involvement from rushing snaps.
Source · Play-by-play + route charting
The percentage of a team's targets directed at a single receiver while that receiver was on the field. Target share is the single most predictive volume metric for fantasy receivers.
Always read alongside route participation to confirm the player was actually available on the route.
Source · Play-by-play
A running back's percentage of team rushing attempts while on the field. Carry share separates true workhorses from committee backs.
Source · Play-by-play
Targets inside the opponent's 20-yard line. Red zone targets are roughly four times more valuable than non-red-zone targets in PPR scoring.
Source · Play-by-play (yardline ≤ 20)
The sum of a player's targets plus carries inside the 10-yard line. HVT correlates more strongly with fantasy production than raw touch totals.
Source · Dynatyze computed from play-by-play
Rate stats that measure how productive each touch is.
The change in a team's expected points from before to after a single play. Positive EPA means the play increased the team's scoring expectation; negative EPA means it decreased it.
EPA is the gold-standard play-level efficiency metric. Aggregate to per-play, per-target, or per-route to compare players fairly.
Source · Expected points model
Average Expected Points Added across every offensive play a unit ran. A team averaging +0.10 EPA/play is elite; a team at -0.10 is bottom-five.
Source · Dynatyze rollup of play-by-play
The percentage of plays that produced positive EPA. Success rate captures consistency in a way that yardage totals do not.
Source · Play-by-play feed
Yards a receiver gains after making the reception. YAC isolates a receiver's ability to create yardage beyond what the throw produced.
Source · Play-by-play
Receiving yards divided by routes run. YPRR is the single most predictive efficiency stat for receiver talent because it normalizes for opportunity.
Source · Advanced charting + route data
Where receivers line up, how often they run routes, and what depth they target.
The distance in yards between a receiver and the nearest defender at the moment a pass arrives. Player tracking measures separation on every target.
League average separation is roughly 2.7 yards. Elite separators consistently sit above 3.0.
Source · Player tracking
The average distance past the line of scrimmage at which a receiver is targeted. aDOT identifies role: under 8 yards is short-area, over 14 is field-stretcher.
Source · Play-by-play feed
The percentage of a team's total air yards directed at one receiver. AYS captures the share of downfield opportunity, not just total target volume.
Source · Play-by-play
The percentage of routes a receiver ran from a given pre-snap position (outside, slot, in-line, backfield). Alignment rates flag scheme changes and emerging role shifts.
Source · Dynatyze + advanced charting
The set of route concepts a receiver runs and their frequency. A diversified route tree signals scheme versatility; a concentrated tree signals specialization.
Source · Dynatyze charting
Metrics that measure how hard a defense is to score on, position by position.
Fantasy points allowed by a defense to a specific position. DvP is the most-cited matchup tool in fantasy football, but raw DvP is heavily distorted by opponent quality.
Always read schedule-adjusted DvP. A defense that played five elite WR1s will look soft even if the unit is strong.
Source · Dynatyze rollup
Defense vs Position with opponent strength removed. Schedule-adjusted DvP isolates the defense's true difficulty for a given position.
Source · Dynatyze schedule adjustment model
The percentage of opposing dropbacks on which a defense generated pressure. Pressure rate is more stable week-to-week than sack rate.
Source · Advanced charting + tracking
Average yards a runner gains before first defender contact. YBC isolates the offensive line and front-seven matchup from the runner's own talent.
Source · Player tracking
The percentage of opposing plays that went for 15+ pass yards or 10+ rush yards. Explosive rate captures the volatility of a defense.
Source · Play-by-play
Throwing-side metrics from player tracking and advanced charting.
The difference between a quarterback's actual completion rate and the expected completion rate given throw difficulty. Positive CPOE means the QB is hitting throws other passers would miss.
Source · Player tracking
Average seconds from snap to release on a passing attempt. Sub-2.5s is quick-game; 3.0s+ is held-throw territory.
Source · Player tracking
Average air yards per pass attempt. AY/A flags whether a QB throws downfield or relies on YAC-heavy short attempts.
Source · Play-by-play
Net passing yards adjusted for sacks, touchdowns, and interceptions, divided by attempts plus sacks. ANY/A is the most complete single-number QB efficiency stat.
Source · Advanced charting
The percentage of pressured dropbacks that result in a sack. A low rate signals QB pocket awareness; a high rate signals a stuck passer.
Source · Advanced charting
Format-specific scoring inputs and outputs.
A scoring format that awards 1 fantasy point per reception. PPR boosts pass-catching backs and slot receivers relative to standard scoring.
Source · League rule
A scoring format that awards 0.5 fantasy points per reception. Half-PPR sits between standard and full PPR and is the most common modern format.
Source · League rule
A league format where teams can start a second quarterback in a flex spot. Superflex inflates quarterback value by 200-300% relative to single-QB leagues.
Source · League rule
A drafting framework that values a player by their projected points above the replacement-level player at the same position. VBD is the foundation of every modern positional ranking.
Source · Approximate Value methodology
The average pick number at which a player is drafted across many drafts. ADP is the market's price tag — Dynatyze's analytics value compared to ADP is the mispricing signal.
Source · Multi-platform aggregate
The average of expert analyst rankings for a player. ECR is the analyst-side counterpart to crowd-sourced ADP.
Source · Dynatyze expert consensus engine
A K-Means clustering of players based on their analytics value. Tiers compress small ranking differences into actionable groupings.
Source · Dynatyze tiering model
A Dynatyze data-quality flag indicating that a metric was computed on fewer than the recommended minimum observations. A LOW_SAMPLE read should be treated as directional, not definitive.
Common thresholds: 8 snaps for usage metrics, 15 routes for YPRR, 20 attempts for QB rate stats.
Source · Dynatyze data quality layer
Data sources
Dynatyze aggregates play-by-play (participation, rosters, every snap), player tracking (separation, time-to-throw, CPOE), advanced charting (pressure, drops, snap counts), and our internal route and alignment charting layer.
Refresh cadence
NFL data syncs every Monday at 4:00 AM EST. Phase 2 advanced rollups (Throw Profile, Routes & Alignment, Top Pairings, Red Zone Funnel, Charted Stats) refresh in the same window. The freshness pill on each analytical surface reflects the most recent successful sync.
Data quality
When a metric is computed on a small sample, Dynatyze surfaces a LOW_SAMPLE flag. Treat those reads as directional, not definitive.
Methodology
Read the full methodology FAQ for our approach to expert consensus, crowd valuation, the Hype Gap formula, and tier construction.
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The Tape
Every term above is a sortable column. Filter by route depth, separation, EPA per route.
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Usage Lab
Target share, carry share, snap rate, and air-yard share for every NFL offense — the volume side of the glossary.
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Defense Lab
DAPS leaderboard, coverage and pressure metrics, IDP rankings — the defense side.