| Mer Sea vs Kazuya | 81–60 | 57.45% |
| Mer Sea vs King | 71–65 | 52.21% |
| Mer Sea vs Reina | 70–66 | 51.47% |
| Mer Sea vs Jin | 78–52 | 60.00% |
| Mer Sea vs Bryan | 53–70 | 43.09% |
| Mer Sea vs Law | 70–32 | 68.63% |
| Mer Sea vs Dragunov | 42–56 | 42.86% |
| Mer Sea vs Lili | 55–41 | 57.29% |
| Mer Sea vs Hwoarang | 53–40 | 56.99% |
| Mer Sea vs Asuka | 55–34 | 61.80% |
| Mer Sea vs Paul | 42–41 | 50.60% |
| Mer Sea vs Yoshimitsu | 42–41 | 50.60% |
| Mer Sea vs Steve | 33–48 | 40.74% |
| Mer Sea vs Heihachi | 39–40 | 49.37% |
| Mer Sea vs Lars | 48–30 | 61.54% |
| Mer Sea vs Feng | 35–40 | 46.67% |
| Mer Sea vs Azucena | 36–39 | 48.00% |
| Mer Sea vs Jun | 34–37 | 47.89% |
| Mer Sea vs Lidia | 34–34 | 50.00% |
| Mer Sea vs Lee | 36–29 | 55.38% |
| Mer Sea vs Nina | 36–26 | 58.06% |
| Mer Sea vs Leo | 30–29 | 50.85% |
| Mer Sea vs Victor | 31–28 | 52.54% |
| Mer Sea vs Eddy | 25–22 | 53.19% |
| Mer Sea vs Xiaoyu | 22–22 | 50.00% |
| Mer Sea vs Devil Jin | 26–18 | 59.09% |
| Mer Sea vs Alisa | 21–23 | 47.73% |
| Mer Sea vs Claudio | 21–21 | 50.00% |
| Mer Sea vs Jack-8 | 25–16 | 60.98% |
| Mer Sea vs Clive | 18–15 | 54.55% |
| Mer Sea vs Kuma | 21–11 | 65.62% |
| Mer Sea vs Raven | 13–16 | 44.83% |
| Mer Sea vs Shaheen | 10–13 | 43.48% |
| Mer Sea vs Zafina | 8–14 | 36.36% |
| Mer Sea vs Leroy | 11–8 | 57.89% |
| Mer Sea vs Anna | 8–5 | 61.54% |
| Mer Sea vs Panda | 2–8 | 20.00% |
| Mer Sea vs Fahkumram | 5–4 | 55.56% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.