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LaLiga Fantasy Companion Tool

LaLiga

About

This tool queries LaLiga Fantasy's API for historical data on players, prices, scored points and other metadata to build dashboards and insights around the game.

Config

Required ENV vars are: DATABASE_URL, USERNAME (email), PASSWORD, LEAGUE_ID and MANAGER_ID.

A config map (named config.edn) under the resources folder in the classpath can also be specified.

Username and password refer to LaLiga Fantasy credentials, and the database URL is a JDBC type URL.

LaLiga Fantasy access tokens are valid for 24 hours.

Usage

Run the REPL.

Usage alternatives

Call another entrypoint, via :exec-fn:

$ clojure -X:healthcheck

Run the project directly, via :main-opts (-m laliga-fantasy.main):

$ clojure -M:run-m

Run the project's tests:

$ clojure -T:build test

Run the project's CI pipeline and build an uberjar:

$ clojure -T:build ci

Run that uberjar:

$ java -jar target/laliga-fantasy-tool-0.1.0-SNAPSHOT.jar

If you remove version from build.clj, the uberjar will become target/laliga-fantasy-tool-standalone.jar.

Features

Overview

The main idea is to fetch and analyse metrics of all of LaLiga's players to determine their value (price vs performance) and their market trend (buy low, sell high). LaLiga's market dynamics are quite simple and it is easy to estimate trends and fitting curves for any given player's market value.

Lineup picker (using pyomo)

clojure -X:picker

Picker

Using constraint programming and taking into account the current available players in the squad, the lineup picker will yield the most efficient lineup. The objective function is to maximise the sum of average points across players, with the following constraints:

  • 11 players
  • No injured or suspended players
  • One goalkeeper
  • One of the following formations:
    • 3-4-3
    • 3-5-2
    • 4-3-3
    • 4-4-2
    • 4-5-1
    • 5-3-2
    • 5-4-1

Premium formations such as 5-2-3, 4-6-0, etc are not supported.

Obviously, sometimes players can simply sit one out and rest and there is no way of knowing in advance, but this lineup picker would always choose the best players in the long run.

Profits

Profits

Buyouts

Buyout clauses expiration times are clearly visible, down to the minute. Hours and minutes are not shown in the UI, but they're present in the JSON response.

Buyouts

Sabotage

A direct product of buyouts and line up analysis.

This shows the number of players per position for each manager. The goal is to find available players (without buyout clause lock) that would leave out their manager with an invalid line up (and therefore without the possibility of scoring any points in that particular fixture).

In any case, the manager will always have a minimum of 24h to find a substitute (either from the League's market, or by buying out a player from another manager).

Sabotage

Market

Market

Activity

Market

This part is crucial to determine the other players' cash amount and things like your own profit margins.