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Contest Calendar

Every upcoming contest across LeetCode, Codeforces, CodeChef and GeeksforGeeks in one place. Star the ones you plan to do — rated contests are the cheapest way to build the speed that interviews actually test.

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October 2026

Codeforces data from the official API, refreshed hourly. LeetCode, CodeChef and GfG run on fixed weekly cadences.

Which contest should you enter?

Rated contests are the cheapest way to build interview speed, because they are the only practice that forces you to read, choose an approach and write it correctly against a clock. One a week is enough — the value is in the timed attempt and the upsolve afterwards, not in entering everything. These four run on fixed schedules, so you can plan around them:

LeetCode Weekly ContestEvery Sunday, 08:00 IST · 90 minutes, 4 problemsThe closest thing to an interview round under time pressure. Problems lean on the same patterns interviewers ask about, so this is the one to do if you only do one.
LeetCode Biweekly ContestAlternate Saturdays, 20:00 IST · 90 minutes, 4 problemsSame format as the weekly, on an evening slot. Useful as a second rated attempt in the weeks it runs.
CodeChef StartersEvery Wednesday, 20:00 IST · 120 minutes, division-basedDivisions mean you are rated against people at your own level rather than the whole field, which makes it the gentlest place to start competing.
GeeksforGeeks Weekly Coding ContestEvery Sunday, 19:00 IST · 90 minutesQuestion style sits closest to Indian campus and service-company tests, so it is worth doing alongside placement preparation.

Codeforces rounds are not on a fixed weekly slot, so they are pulled live rather than listed here — Div. 3 and Div. 4 rounds are the ones to look for if you are starting out. Whatever you enter, upsolve the problems you did not finish within a day or two: the contest tells you where the gap is, and the upsolve is what closes it.