To cite package ‘winning’ in publications use:

  Cotton P (2026). _winning: Contest Win Probabilities and Ability
  Calibration_. R package version 0.3.0,
  <https://CRAN.R-project.org/package=winning>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {winning: Contest Win Probabilities and Ability Calibration},
    author = {Peter Cotton},
    year = {2026},
    note = {R package version 0.3.0},
    url = {https://CRAN.R-project.org/package=winning},
  }