Codeforces Elo
A rating system for competitive programmers, similar to chess ratings, used on the Codeforces platform.
Codeforces Elo is a way to rank people who compete in online programming contests. Think of it like a chess rating system. When you win against someone with a higher rating, your rating goes up more. When you lose to someone with a lower rating, your rating goes down more.
This system helps organize contests and shows who the top programmers are. It's a way to measure skill in solving programming problems under time pressure.
Codeforces Elo is a specific implementation of the Elo rating system, widely used on the Codeforces platform to rank participants in competitive programming contests. It quantizes a programmer's skill level based on their performance against other rated participants. Wins against higher-rated opponents yield a larger rating gain, while losses to lower-rated opponents result in a larger rating decrease, following the standard Elo formula.
OpenAI's o1-mini model is benchmarked against competitive programming performance, using metrics like Codeforces Elo. This suggests frontier AI models are being evaluated on their ability to perform complex reasoning tasks, similar to those found in programming contests.
- OpenAI o1-miniOpenAI · OpenAI News ·
- OpenAI ChatGPT
- OpenAI's o1-mini model is evaluated using Codeforces Elo as a benchmark for its STEM reasoning capabilities.
- Chess Elo
- A rating system for chess players, similar in principle but applied t
- Glicko rating system
- Another rating system that builds on Elo by incorporating
- TrueSkill
- A Microsoft-developed rating system used in Xbox Live, designed for m
The Elo rating system was invented by Arpad Elo, a Hungarian-American physics professor. It was initially developed for chess and has since been adapted for many other competitive domains, including competitive programming platforms like Codeforces. Source ↗
You can see Codeforces Elo in action by visiting the Codeforces website. Look at the standings or user profiles to see the ratings of different programmers. Try solving a few problems yourself and observe how your performance might correlate with hypothetical rating changes.
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Questions people ask
- How does Codeforces Elo work?
- It uses a mathematical formula to adjust a programmer's rating after each contest based on their wins, losses, and the ratings of their opponents.
- Is Codeforces Elo the same as chess Elo?
- The underlying principle is the same, but Codeforces Elo is specifically adapted for the domain of competitive programming and uses its own set of parameters and player pool.
First seen on Subvolts Sep 12, 2024. Updated Sep 15, 2026. Written by an AI model from the items above and reviewed against them weekly; report an error.