LAMAR (League-Adjusted Measure Above Replacement)
What is LAMAR?
LAMAR is a value metric that measures how many fantasy points a player scores above the replacement level at their position, adjusted for their specific league's size and roster construction. It is the primary player valuation metric used by League History.
A positive LAMAR means the player outscored what a freely available replacement would have produced. A negative LAMAR means the player underperformed replacement level — you could have picked up a waiver wire player and gotten more points.
Why LAMAR exists
Raw fantasy points are misleading for cross-position comparisons. A quarterback who scores 20 points per game looks productive, but if the average starting QB in your league also scores 20, that quarterback is providing zero value above what's freely available. Meanwhile, a tight end scoring 12 points per game might be elite if the replacement tight end only scores 5.
LAMAR solves this by measuring value relative to what's available at each position in each league. It captures positional scarcity — the reason a top tight end can be more valuable than a mid-tier quarterback, even though the QB scores more raw points.
How LAMAR is calculated
Step 1: Determine replacement level
For each position, each week, the system counts how many players are rostered versus how many are available in the league. The replacement player is the one right at the boundary — the last player worth rostering.
Specifically:
- Count all players at the position who scored points that week
- Calculate the percentage who were rostered by a manager
- Rank all players at that position by points scored
- The player at the rank corresponding to the rostered percentage is the replacement player
- Average the points of that player and the one ranked just below them to smooth the cutoff
If a position has 40 players who scored points and 60% were rostered, replacement level is approximately the 24th-ranked player's output.
Step 2: Calculate weekly LAMAR
For every player, every week:
Player LAMAR = Fantasy Points Scored - Replacement Points at Their Position
This produces a single number per player per week. A wide receiver who scored 18 points in a week where the replacement WR scored 6 gets a LAMAR of +12. A running back who scored 4 in a week where replacement was 7 gets a LAMAR of -3.
Step 3: Season and career aggregation
Season LAMAR is the sum of all weekly LAMAR values across a season. Career LAMAR is the sum across all seasons. Because LAMAR can be negative in bad weeks, a player's season total reflects their net contribution — great weeks offset by poor ones.
Three variants of LAMAR
| Variant | What it measures | Who it applies to |
|---|---|---|
| Player LAMAR | Total value produced regardless of roster status | All players who scored points |
| Manager LAMAR | Value captured by the manager who started the player | Only players in the starting lineup |
| Bench LAMAR | Value left on the bench (opportunity cost) | Rostered players who were not started |
The gap between Player LAMAR and Manager LAMAR reveals management quality. A manager with high Manager LAMAR relative to Player LAMAR is making good start/sit decisions. A manager with high Bench LAMAR is leaving value on the bench.
Flex LAMAR
In leagues with flex roster slots (where multiple positions compete for the same lineup spot), LAMAR is also calculated against flex-specific replacement levels. A FLEX replacement level pools all eligible positions (typically RB/WR/TE) together, producing a different — usually lower — replacement threshold than position-specific LAMAR.
Flex pools include:
- FLEX (RB/WR/TE)
- REC_FLEX (WR/TE)
- SUPER_FLEX (QB/RB/WR/TE)
- IDP (DL/LB/DB)
How LAMAR differs from other metrics
| Metric | Limitation LAMAR addresses |
|---|---|
| Fantasy Points | No positional context — QBs always look best |
| Points Per Game | Doesn't account for what's freely available |
| Position Rank | Ordinal only — doesn't quantify how much better |
| VORP (generic) | Usually uses a fixed, arbitrary replacement level |
LAMAR's replacement level is derived from actual rostered percentages in your league, not from an arbitrary cutoff like "the 13th QB." This means LAMAR automatically adapts to your league's size, roster settings, and competitive dynamics.
Research Mode vs. League-Specific LAMAR
In Research Mode, LAMAR is approximated using calibrated percentile thresholds derived from hundreds of real leagues. This gives a useful estimate for standard league configurations (10-team, 12-team, various scoring formats).
When you import your own league for free, LAMAR is calculated using your league's actual roster data — which players were rostered, by whom, each week. This produces exact LAMAR values tailored to your league's specific competitive environment.
Related — Player Value
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