| Undead King vs Eddy | 3–5 | 37.50% |
| Undead King vs Kazuya | 2–3 | 40.00% |
| Undead King vs Zafina | 2–3 | 40.00% |
| Undead King vs Reina | 4–1 | 80.00% |
| Undead King vs Lee | 4–0 | 100.00% |
| Undead King vs Paul | 3–0 | 100.00% |
| Undead King vs King | 0–3 | 0.00% |
| Undead King vs Jin | 0–2 | 0.00% |
| Undead King vs Devil Jin | 1–1 | 50.00% |
| Undead King vs Leo | 0–2 | 0.00% |
| Undead King vs Lars | 0–2 | 0.00% |
| Undead King vs Jun | 0–2 | 0.00% |
| Undead King vs Victor | 2–0 | 100.00% |
| Undead King vs Hwoarang | 0–1 | 0.00% |
| Undead King vs Xiaoyu | 0–1 | 0.00% |
| Undead King vs Steve | 0–1 | 0.00% |
| Undead King vs Azucena | 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.