| The Witch-king vs Paul | 9–6 | 60.00% |
| The Witch-king vs Hwoarang | 3–5 | 37.50% |
| The Witch-king vs Lili | 7–1 | 87.50% |
| The Witch-king vs Asuka | 5–2 | 71.43% |
| The Witch-king vs Kazuya | 3–3 | 50.00% |
| The Witch-king vs Victor | 5–1 | 83.33% |
| The Witch-king vs Jin | 2–3 | 40.00% |
| The Witch-king vs Steve | 4–1 | 80.00% |
| The Witch-king vs Jun | 3–2 | 60.00% |
| The Witch-king vs Reina | 2–3 | 40.00% |
| The Witch-king vs Miary Zo | 3–2 | 60.00% |
| The Witch-king vs Nina | 3–1 | 75.00% |
| The Witch-king vs Law | 1–2 | 33.33% |
| The Witch-king vs Bryan | 2–1 | 66.67% |
| The Witch-king vs Devil Jin | 3–0 | 100.00% |
| The Witch-king vs Lars | 2–1 | 66.67% |
| The Witch-king vs Claudio | 0–3 | 0.00% |
| The Witch-king vs Fahkumram | 2–1 | 66.67% |
| The Witch-king vs Yoshimitsu | 2–0 | 100.00% |
| The Witch-king vs Xiaoyu | 2–0 | 100.00% |
| The Witch-king vs Leo | 2–0 | 100.00% |
| The Witch-king vs Kuma | 0–2 | 0.00% |
| The Witch-king vs King | 1–0 | 100.00% |
| The Witch-king vs Alisa | 0–1 | 0.00% |
| The Witch-king vs Heihachi | 0–1 | 0.00% |
| The Witch-king vs Armor King | 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.