W
WARRP
Wins Above Replacement Rugby Player: our rugby-native answer to sabermetrics' replacement-value question.
Model online
Moneyball thinking · Built for English rugby
See the game
beneath the game.
Rugby sabermetrics translating every carry, tackle and pound of squad spend into a clearer measure of player impact and market value.
Live dataset
458Players
9277Signals
10Clubs
01 / The Moneyball thesis
Sabermetrics, translated
Moneyball changed baseball.
Rugby needs its own model.
The Moneyball idea is simple: reputation and price can hide real competitive value. We adapt that logic to rugby by comparing players with positional replacement level, weighting the actions their role demands, then testing impact against estimated salary.
02
Live model output · 2025-26
Market
signals
Six players where modelled impact and estimated market cost diverge most sharply.
Positive varianceValue finds
03
Squad economics
Spend is not
the strategy.
Championship Efficiency reveals which clubs convert resources into projected points.
Best squad value
Northampton Saints
- Efficiency
- 7.56
- Est. cost
- £6,601,000
- Actual pts
- 74
Lowest squad value
Sale Sharks
- Efficiency
- 4.16
- Est. cost
- £8,000,000
- Actual pts
- 36
The rugby sabermetrics stack
From replacement value
to market edge.
£
IPV
Individual Player Value: WARRP measured against estimated salary to expose where price and impact diverge.
∆
Championship Efficiency
The Moneyball view at club level: projected league return measured against total squad cost.
The framework in motion
How the model reads the game
Five connected stages, from match context to market value.
Open methods / honest limits
Every claim should survive scrutiny.
Explore the model, inspect the source coverage and understand where estimates begin.