| Mortal King vs King | 12–18 | 40.00% |
| Mortal King vs Steve | 10–19 | 34.48% |
| Mortal King vs Reina | 15–13 | 53.57% |
| Mortal King vs Kazuya | 15–11 | 57.69% |
| Mortal King vs Eddy | 10–16 | 38.46% |
| Mortal King vs Bryan | 12–12 | 50.00% |
| Mortal King vs Hwoarang | 11–8 | 57.89% |
| Mortal King vs Lili | 10–9 | 52.63% |
| Mortal King vs Asuka | 9–9 | 50.00% |
| Mortal King vs Law | 10–7 | 58.82% |
| Mortal King vs Lee | 9–6 | 60.00% |
| Mortal King vs Victor | 6–9 | 40.00% |
| Mortal King vs Yoshimitsu | 9–5 | 64.29% |
| Mortal King vs Jin | 11–3 | 78.57% |
| Mortal King vs Azucena | 6–8 | 42.86% |
| Mortal King vs Dragunov | 6–7 | 46.15% |
| Mortal King vs Lars | 5–8 | 38.46% |
| Mortal King vs Jun | 6–5 | 54.55% |
| Mortal King vs Devil Jin | 7–3 | 70.00% |
| Mortal King vs Claudio | 5–5 | 50.00% |
| Mortal King vs Shaheen | 3–6 | 33.33% |
| Mortal King vs Leroy | 3–5 | 37.50% |
| Mortal King vs Leo | 3–4 | 42.86% |
| Mortal King vs Xiaoyu | 2–4 | 33.33% |
| Mortal King vs Paul | 3–2 | 60.00% |
| Mortal King vs Zafina | 3–2 | 60.00% |
| Mortal King vs Raven | 4–1 | 80.00% |
| Mortal King vs Heihachi | 3–2 | 60.00% |
| Mortal King vs Feng | 2–2 | 50.00% |
| Mortal King vs Nina | 2–2 | 50.00% |
| Mortal King vs Kuma | 2–2 | 50.00% |
| Mortal King vs Jack-8 | 2–1 | 66.67% |
| Mortal King vs Alisa | 1–1 | 50.00% |
| Mortal King vs Panda | 0–2 | 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.