| Mercful Servant vs King | 33–71 | 31.73% |
| Mercful Servant vs Jin | 37–52 | 41.57% |
| Mercful Servant vs Kazuya | 30–54 | 35.71% |
| Mercful Servant vs Bryan | 26–23 | 53.06% |
| Mercful Servant vs Dragunov | 13–34 | 27.66% |
| Mercful Servant vs Law | 22–23 | 48.89% |
| Mercful Servant vs Victor | 13–32 | 28.89% |
| Mercful Servant vs Hwoarang | 11–26 | 29.73% |
| Mercful Servant vs Reina | 17–18 | 48.57% |
| Mercful Servant vs Jun | 15–19 | 44.12% |
| Mercful Servant vs Paul | 6–24 | 20.00% |
| Mercful Servant vs Devil Jin | 10–17 | 37.04% |
| Mercful Servant vs Lidia | 12–15 | 44.44% |
| Mercful Servant vs Steve | 4–22 | 15.38% |
| Mercful Servant vs Nina | 9–17 | 34.62% |
| Mercful Servant vs Azucena | 15–11 | 57.69% |
| Mercful Servant vs Lili | 9–16 | 36.00% |
| Mercful Servant vs Lee | 13–12 | 52.00% |
| Mercful Servant vs Yoshimitsu | 11–12 | 47.83% |
| Mercful Servant vs Alisa | 6–17 | 26.09% |
| Mercful Servant vs Leo | 12–10 | 54.55% |
| Mercful Servant vs Jack-8 | 3–14 | 17.65% |
| Mercful Servant vs Asuka | 4–12 | 25.00% |
| Mercful Servant vs Lars | 5–11 | 31.25% |
| Mercful Servant vs Eddy | 5–7 | 41.67% |
| Mercful Servant vs Xiaoyu | 2–8 | 20.00% |
| Mercful Servant vs Claudio | 3–6 | 33.33% |
| Mercful Servant vs Feng | 1–6 | 14.29% |
| Mercful Servant vs Shaheen | 2–4 | 33.33% |
| Mercful Servant vs Leroy | 2–1 | 66.67% |
| Mercful Servant vs Zafina | 0–2 | 0.00% |
| Mercful Servant vs Raven | 0–2 | 0.00% |
| Mercful Servant vs Panda | 1–0 | 100.00% |
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.