| UnderDog vs Jin | 15–18 | 45.45% |
| UnderDog vs Yoshimitsu | 7–10–1 | 41.18% |
| UnderDog vs Kazuya | 7–11 | 38.89% |
| UnderDog vs Bryan | 7–8 | 46.67% |
| UnderDog vs Lili | 4–10 | 28.57% |
| UnderDog vs Dragunov | 2–11 | 15.38% |
| UnderDog vs King | 7–5 | 58.33% |
| UnderDog vs Hwoarang | 5–7 | 41.67% |
| UnderDog vs Lars | 4–8 | 33.33% |
| UnderDog vs Paul | 1–8 | 11.11% |
| UnderDog vs Reina | 4–5 | 44.44% |
| UnderDog vs Steve | 5–3 | 62.50% |
| UnderDog vs Asuka | 2–6 | 25.00% |
| UnderDog vs Lee | 5–3 | 62.50% |
| UnderDog vs Anna | 4–4 | 50.00% |
| UnderDog vs Jun | 4–3 | 57.14% |
| UnderDog vs Victor | 7–0 | 100.00% |
| UnderDog vs Eddy | 1–6 | 14.29% |
| UnderDog vs Leroy | 3–3 | 50.00% |
| UnderDog vs Clive | 4–2 | 66.67% |
| UnderDog vs Xiaoyu | 0–5 | 0.00% |
| UnderDog vs Leo | 3–2 | 60.00% |
| UnderDog vs Nina | 1–4 | 20.00% |
| UnderDog vs Claudio | 0–4 | 0.00% |
| UnderDog vs Alisa | 2–1 | 66.67% |
| UnderDog vs Panda | 2–1 | 66.67% |
| UnderDog vs Law | 0–2 | 0.00% |
| UnderDog vs Devil Jin | 2–0 | 100.00% |
| UnderDog vs Feng | 0–2 | 0.00% |
| UnderDog vs Kuma | 2–0 | 100.00% |
| UnderDog vs Azucena | 2–0 | 100.00% |
| UnderDog vs Heihachi | 2–0 | 100.00% |
| UnderDog vs Zafina | 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.