| Mercurius vs Reina | 11–15 | 42.31% |
| Mercurius vs Jin | 9–15 | 37.50% |
| Mercurius vs Kazuya | 10–11 | 47.62% |
| Mercurius vs King | 4–14 | 22.22% |
| Mercurius vs Eddy | 4–13 | 23.53% |
| Mercurius vs Dragunov | 6–10 | 37.50% |
| Mercurius vs Bryan | 5–7 | 41.67% |
| Mercurius vs Devil Jin | 6–6 | 50.00% |
| Mercurius vs Asuka | 1–10 | 9.09% |
| Mercurius vs Lili | 3–8 | 27.27% |
| Mercurius vs Steve | 4–6 | 40.00% |
| Mercurius vs Alisa | 1–8 | 11.11% |
| Mercurius vs Victor | 3–6 | 33.33% |
| Mercurius vs Hwoarang | 3–5 | 37.50% |
| Mercurius vs Heihachi | 2–6 | 25.00% |
| Mercurius vs Law | 2–5 | 28.57% |
| Mercurius vs Jack-8 | 3–4 | 42.86% |
| Mercurius vs Nina | 2–5 | 28.57% |
| Mercurius vs Paul | 2–4 | 33.33% |
| Mercurius vs Leo | 1–4 | 20.00% |
| Mercurius vs Zafina | 4–1 | 80.00% |
| Mercurius vs Yoshimitsu | 0–4 | 0.00% |
| Mercurius vs Lars | 0–4 | 0.00% |
| Mercurius vs Shaheen | 2–2 | 50.00% |
| Mercurius vs Jun | 2–2 | 50.00% |
| Mercurius vs Claudio | 0–3 | 0.00% |
| Mercurius vs Panda | 2–1 | 66.67% |
| Mercurius vs Leroy | 3–0 | 100.00% |
| Mercurius vs Azucena | 1–2 | 33.33% |
| Mercurius vs Raven | 1–2 | 33.33% |
| Mercurius vs Xiaoyu | 0–2 | 0.00% |
| Mercurius vs Feng | 0–2 | 0.00% |
| Mercurius vs Lidia | 1–1 | 50.00% |
| Mercurius vs Kuma | 0–1 | 0.00% |
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.