Implement Proper Tied Ranking for Users with Equal Scores

[Yashaswini-K-P]

Description

Currently, users with equal scores in the leaderboard can be ranked in different ways depending on the ranking logic used. Before implementing, I would like to confirm the expected ranking behavior for consistency across all leaderboard views.

Problem

When multiple users have the same score, different ranking systems produce different outputs.
Option 1: Competition Ranking (1224 system)
-1. A — 500
-1. B — 500
-3. C — 480
-4. D — 470
-4. E — 470
-6. F — 430

Option 2: Dense Ranking (no skipped ranks)
-1. A — 500
-1. B — 500
-2. C — 480
-3. D — 470
-3. E — 470
-4. F — 430

Option 3: Unique Ranking
-1. A — 500
-2. B — 500
-3. C — 480
-4. D — 470
-5. E — 470

Could you please confirm which ranking strategy should be followed? Also, if there is any other ranking approach or custom logic you are considering for this project, I would be happy to align with that and implement it accordingly.

Once confirmed, I will implement it consistently across:

Daily leaderboard
Weekly leaderboard
Monthly leaderboard
Overall leaderboard

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[Vachhani-Tapan]

@codepvg Hey Mentor, I would like to work on this issue so please assign me this issue for GSSOC 2026

[jagdish-15]

What I had in mind for this project was the competition ranking / 1224 system instead, something like:

1. A — 500
1. B — 500
3. C — 480
4. D — 470
4. E — 470
6. F — 430

[Yashaswini-K-P]

Sounds good! One small question: with the competition ranking system, ranks like 2 and 5 will be skipped after ties (1, 1, 3, 4, 4, 6). I was wondering whether you considered using dense ranking (1, 1, 2, 3, 3, 4) instead, since it avoids gaps in the numbering. I'm happy to implement either approach—just curious about the reasoning behind preferring competition ranking for this project.

[jagdish-15]

Mostly because with the competition ranking system, the rank itself also reflects how many users are actually ahead of you on the leaderboard.

For example, if you're rank 6, that means there are 5 users ahead of you, even if some of them share the same score.

It also means the rank numbering itself still gives an idea of the number of users in the ranked list, whereas dense ranking compresses the numbering once ties are introduced.