| MourningKing vs King | 17–15 | 53.12% |
| MourningKing vs Steve | 17–12 | 58.62% |
| MourningKing vs Jin | 13–15 | 46.43% |
| MourningKing vs Dragunov | 13–14 | 48.15% |
| MourningKing vs Reina | 11–14 | 44.00% |
| MourningKing vs Eddy | 11–14 | 44.00% |
| MourningKing vs Kazuya | 11–12 | 47.83% |
| MourningKing vs Leo | 8–11 | 42.11% |
| MourningKing vs Hwoarang | 9–7 | 56.25% |
| MourningKing vs Bryan | 3–10 | 23.08% |
| MourningKing vs Jun | 4–9 | 30.77% |
| MourningKing vs Heihachi | 6–7 | 46.15% |
| MourningKing vs Miary Zo | 7–6 | 53.85% |
| MourningKing vs Asuka | 3–8 | 27.27% |
| MourningKing vs Lili | 5–6 | 45.45% |
| MourningKing vs Nina | 6–5 | 54.55% |
| MourningKing vs Devil Jin | 6–4 | 60.00% |
| MourningKing vs Armor King | 6–4 | 60.00% |
| MourningKing vs Paul | 2–7 | 22.22% |
| MourningKing vs Jack-8 | 4–5 | 44.44% |
| MourningKing vs Feng | 4–5 | 44.44% |
| MourningKing vs Lars | 7–2 | 77.78% |
| MourningKing vs Alisa | 5–4 | 55.56% |
| MourningKing vs Kuma | 1–8 | 11.11% |
| MourningKing vs Lidia | 6–3 | 66.67% |
| MourningKing vs Azucena | 2–6 | 25.00% |
| MourningKing vs Raven | 4–4 | 50.00% |
| MourningKing vs Law | 2–5 | 28.57% |
| MourningKing vs Leroy | 3–4 | 42.86% |
| MourningKing vs Victor | 3–4 | 42.86% |
| MourningKing vs Yoshimitsu | 3–3 | 50.00% |
| MourningKing vs Xiaoyu | 3–3 | 50.00% |
| MourningKing vs Lee | 2–3 | 40.00% |
| MourningKing vs Zafina | 2–3 | 40.00% |
| MourningKing vs Clive | 1–4 | 20.00% |
| MourningKing vs Shaheen | 4–0 | 100.00% |
| MourningKing vs Claudio | 2–1 | 66.67% |
| MourningKing vs Fahkumram | 2–1 | 66.67% |
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.