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This rating predictor allows you to view your rating in a DMOJ contest. Based on your previous contest performance, as well as your ranking in the contest, it predicts your new rating. Instead of having to wait until the contest is over and officially rated, you can now view your rating while you do the contest!

To get started, go back to the rating predictor home page here and type in a contest key, such as valentines19s. You should end up at a page similar to:

To view all available keys, you can click on any contest here, and the key is the last fragment of the URL path.

For more information on ratings, you can view this blog post.

For information on how rating is calculated, you can view the paper that DMOJ's rating system was based off of.