| Mersa vs Lili | 7–16 | 30.43% |
| Mersa vs Reina | 7–11 | 38.89% |
| Mersa vs Hwoarang | 5–12 | 29.41% |
| Mersa vs Steve | 5–12 | 29.41% |
| Mersa vs Eddy | 3–14 | 17.65% |
| Mersa vs Lars | 4–11 | 26.67% |
| Mersa vs King | 5–9 | 35.71% |
| Mersa vs Kazuya | 2–12 | 14.29% |
| Mersa vs Victor | 5–9 | 35.71% |
| Mersa vs Jun | 3–10 | 23.08% |
| Mersa vs Yoshimitsu | 3–9 | 25.00% |
| Mersa vs Lee | 4–8 | 33.33% |
| Mersa vs Alisa | 0–11 | 0.00% |
| Mersa vs Azucena | 2–9 | 18.18% |
| Mersa vs Lidia | 4–7 | 36.36% |
| Mersa vs Bryan | 1–8 | 11.11% |
| Mersa vs Dragunov | 1–8 | 11.11% |
| Mersa vs Xiaoyu | 5–3 | 62.50% |
| Mersa vs Paul | 3–4 | 42.86% |
| Mersa vs Law | 3–4 | 42.86% |
| Mersa vs Asuka | 3–4 | 42.86% |
| Mersa vs Devil Jin | 1–5 | 16.67% |
| Mersa vs Leo | 1–4 | 20.00% |
| Mersa vs Kuma | 3–2 | 60.00% |
| Mersa vs Feng | 0–4 | 0.00% |
| Mersa vs Claudio | 2–2 | 50.00% |
| Mersa vs Heihachi | 0–4 | 0.00% |
| Mersa vs Jin | 1–2 | 33.33% |
| Mersa vs Nina | 1–2 | 33.33% |
| Mersa vs Raven | 1–2 | 33.33% |
| Mersa vs Shaheen | 0–2 | 0.00% |
| Mersa vs Leroy | 0–2 | 0.00% |
| Mersa vs Zafina | 2–0 | 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.