What we do

CoD Theory is a data driven website covering all things competitive Call of Duty. Started in 2018, it aims to provide insights into players, teams, and the entire scene.

About our Data

Our data comes from a variety of sources. We present it in a clean, organized, and insightful fashion. Some data is still being migrated, and players are being added to our database, so you may not see every player. If you see a problem with our data, please contact us through twitter or email.

What is an ELO rating and how is it calculated?

An ELO rating is a way to evaluate the relative skill level of a player in any sport. It is commonly known for being used in chess. However, it has been used in more modern sports like the NBA and NFL (FiveThiryEight).

Our ELO ratings are divided into two parts. First is the ELO rating based on placements (pELO). The second part is based on player statistics. We call them pELO (placing) and sELO (stats). To calculate a player's new pELO after a LAN tournament, we simulate the following matches: (This is an example for a 16+ team tournament with our defaukt K-value = 32):
  • 1st: Win against 2000 ELO opponent
  • 2nd: Win against 1900 ELO opponent
  • 3rd: Win against 1800 ELO opponent
  • -
  • 7th+: Loss against 2000 ELO opponent
  • 12th+: Loss against 1900 ELO opponent
  • 16th+: Loss against 1800 ELO opponent

To illustrate pELO in an example, let's look at Dashy. Going into CWL Vegas (Bo4) he had a pELO of 1231. With a 1st place finish, we obtain Dashy's new pELO by simulating a win against a 2000 ELO opponent. So his new pELO becomes 1263 (+32).
sELO Calculation explanation coming soon!

Questions or Suggestions?

If you have questions, concerns, or suggestions, please reach out on Twitter or email us at codtheory2@gmail.com