| Undun vs Eddy | 11–7 | 61.11% |
| Undun vs Reina | 10–4 | 71.43% |
| Undun vs Nina | 7–5 | 58.33% |
| Undun vs Victor | 7–5 | 58.33% |
| Undun vs King | 5–6 | 45.45% |
| Undun vs Hwoarang | 6–3 | 66.67% |
| Undun vs Yoshimitsu | 5–3 | 62.50% |
| Undun vs Dragunov | 8–0 | 100.00% |
| Undun vs Raven | 6–1 | 85.71% |
| Undun vs Steve | 4–2 | 66.67% |
| Undun vs Jin | 1–4 | 20.00% |
| Undun vs Kazuya | 1–4 | 20.00% |
| Undun vs Paul | 2–2 | 50.00% |
| Undun vs Bryan | 2–2 | 50.00% |
| Undun vs Lili | 1–2 | 33.33% |
| Undun vs Lars | 3–0 | 100.00% |
| Undun vs Zafina | 0–3 | 0.00% |
| Undun vs Azucena | 3–0 | 100.00% |
| Undun vs Heihachi | 2–1 | 66.67% |
| Undun vs Law | 0–2 | 0.00% |
| Undun vs Devil Jin | 2–0 | 100.00% |
| Undun vs Shaheen | 0–2 | 0.00% |
| Undun vs Lee | 2–0 | 100.00% |
| Undun vs Leroy | 2–0 | 100.00% |
| Undun vs Jun | 2–0 | 100.00% |
| Undun vs Lidia | 0–2 | 0.00% |
| Undun vs Clive | 2–0 | 100.00% |
| Undun vs Leo | 1–0 | 100.00% |
| Undun vs Claudio | 1–0 | 100.00% |
| Undun vs Kuma | 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.