| Mordekaiser vs Jin | 15–10 | 60.00% |
| Mordekaiser vs Law | 12–10 | 54.55% |
| Mordekaiser vs Hwoarang | 10–12 | 45.45% |
| Mordekaiser vs Steve | 9–5 | 64.29% |
| Mordekaiser vs Jun | 6–6 | 50.00% |
| Mordekaiser vs Reina | 8–3 | 72.73% |
| Mordekaiser vs Dragunov | 8–2 | 80.00% |
| Mordekaiser vs Lars | 4–6 | 40.00% |
| Mordekaiser vs Lidia | 4–6 | 40.00% |
| Mordekaiser vs Paul | 4–5 | 44.44% |
| Mordekaiser vs Yoshimitsu | 2–7 | 22.22% |
| Mordekaiser vs Lili | 5–4 | 55.56% |
| Mordekaiser vs Alisa | 7–2 | 77.78% |
| Mordekaiser vs Azucena | 6–3 | 66.67% |
| Mordekaiser vs King | 2–5 | 28.57% |
| Mordekaiser vs Kazuya | 3–4 | 42.86% |
| Mordekaiser vs Jack-8 | 5–1 | 83.33% |
| Mordekaiser vs Eddy | 3–3 | 50.00% |
| Mordekaiser vs Lee | 1–4 | 20.00% |
| Mordekaiser vs Heihachi | 4–1 | 80.00% |
| Mordekaiser vs Bryan | 2–2 | 50.00% |
| Mordekaiser vs Devil Jin | 3–1 | 75.00% |
| Mordekaiser vs Feng | 3–1 | 75.00% |
| Mordekaiser vs Leo | 4–0 | 100.00% |
| Mordekaiser vs Victor | 4–0 | 100.00% |
| Mordekaiser vs Clive | 2–2 | 50.00% |
| Mordekaiser vs Xiaoyu | 2–1 | 66.67% |
| Mordekaiser vs Zafina | 2–0 | 100.00% |
| Mordekaiser vs Asuka | 1–0 | 100.00% |
| Mordekaiser vs Claudio | 1–0 | 100.00% |
| Mordekaiser vs Nina | 0–1 | 0.00% |
| Mordekaiser vs Kuma | 1–0 | 100.00% |
| Mordekaiser vs Leroy | 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.