| Undarix vs Jin | 10–3 | 76.92% |
| Undarix vs Kazuya | 4–2 | 66.67% |
| Undarix vs Heihachi | 4–2 | 66.67% |
| Undarix vs Fahkumram | 4–1 | 80.00% |
| Undarix vs Yoshimitsu | 3–1 | 75.00% |
| Undarix vs Eddy | 2–2 | 50.00% |
| Undarix vs Armor King | 3–1 | 75.00% |
| Undarix vs Law | 1–2 | 33.33% |
| Undarix vs Steve | 3–0 | 100.00% |
| Undarix vs Lili | 3–0 | 100.00% |
| Undarix vs Miary Zo | 2–1 | 66.67% |
| Undarix vs Hwoarang | 2–0 | 100.00% |
| Undarix vs Leo | 1–1 | 50.00% |
| Undarix vs Shaheen | 2–0 | 100.00% |
| Undarix vs Reina | 1–1 | 50.00% |
| Undarix vs Victor | 0–2 | 0.00% |
| Undarix vs Lidia | 2–0 | 100.00% |
| Undarix vs King | 0–1 | 0.00% |
| Undarix vs Jack-8 | 1–0 | 100.00% |
| Undarix vs Devil Jin | 1–0 | 100.00% |
| Undarix vs Alisa | 0–1 | 0.00% |
| Undarix vs Azucena | 0–1 | 0.00% |
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.