elo

3.0.2

Ranking Teams by Elo Rating and Comparable Methods

1packages depend

10.3Kdownloads / year

83.4%test coverage

0/13checks pass

Overview

About

Maintained by Ethan HeinzenFirst published 2017-08-168 releasesCRAN page ↗GitHub ↗

A flexible framework for calculating Elo ratings and resulting rankings of any two-team-per-matchup system (chess, sports leagues, 'Go', etc.). This implementation is capable of evaluating a variety of matchups, Elo rating updates, and win probabilities, all based on the basic Elo rating system. It also includes methods to benchmark performance, including logistic regression and Markov chain models.

Install

R (CRAN)pak (dev)Ubuntu (r2u)openSUSE (OBS)

install.packages("elo", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("eheinzen/elo")

Development version from eheinzen/elo. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-elo

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-elo

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13NOTE

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc
NOTE r-devel-windows-x86_64
NOTE r-oldrel-macos-arm64
NOTE r-oldrel-macos-x86_64
NOTE r-oldrel-windows-x86_64
NOTE r-patched-linux-x86_64
NOTE r-release-linux-x86_64
NOTE r-release-macos-arm64
NOTE r-release-macos-x86_64
NOTE r-release-windows-x86_64

Slowest check: 2.7 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.39

83.4%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-04-22
0 OK · 14 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
0 OK · 13 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
0 OK · 14 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 159 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 92%
Return-value docs: 47%
References docs: 21%

Downloads

10.3K

CRAN downloads in the past year

Rank #6,887 · ~28/day · ~855/mo

Releases R versions

Daily download trend is not available in this view yet.

48630 days

1.5K90 days

10.3K1 year

Compare downloads with other packages →

Also on434 r2u21 autocran38 c2d4u

Repository

GitHub ↗ eheinzen/elo

38Stars

4Forks

2Open issues

0Open PRs

0Releases

275Commits

2Contributors

rcraneloelo-ratingrankingmarkov-chainmarkov-modellogistic-regression

275 commits · Last activity 2023-10-04 · 0% stars, 30d

Stars over time

2024-07-01 · 372026-07-07 · 38

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/eheinzen/elo on 2026-07-19.

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (2)

R >= 3.6.0stats

Imports (2)

Rcpp pROC

LinkingTo (1)

Rcpp

Suggests (3)

knitr testthat rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

fitzRoy

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

Ethan Heinzen

Author, Maintainer

Authors (1)

Ethan Heinzen

Author, Maintainer

Package Timeline

8 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
3.0.2Latest
2023-08-23 · current release · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
3.0.1
2022-02-04 · diff ↗
unarchivedReturned to CRAN
2022-02-04
archivedRemoved from CRAN
2021-10-13
check problems were not corrected in time
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
2.1.1
2020-01-14 · diff ↗
2.0.0
2019-08-02 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.1.0
2019-01-21 · diff ↗
R
R 3.5.0 released · 2018-04-23

Show 4 earlier events

1.0.1
2017-12-14 · diff ↗
1.0.0
2017-11-20 · diff ↗
0.1.2
2017-08-16
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2017-08-16
Total releases: 8 / 9 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.6.0
Bundled data: 1.3 KB / 2 files
Download size: 81 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Sports Analytics

Report a problem with this page →