| Und3rD0G vs Reina | 31–36 | 46.27% |
| Und3rD0G vs Kazuya | 26–33 | 44.07% |
| Und3rD0G vs Jin | 20–38 | 34.48% |
| Und3rD0G vs King | 25–32 | 43.86% |
| Und3rD0G vs Bryan | 19–25 | 43.18% |
| Und3rD0G vs Dragunov | 16–24 | 40.00% |
| Und3rD0G vs Paul | 14–22 | 38.89% |
| Und3rD0G vs Eddy | 8–28 | 22.22% |
| Und3rD0G vs Yoshimitsu | 18–17 | 51.43% |
| Und3rD0G vs Hwoarang | 15–17 | 46.88% |
| Und3rD0G vs Asuka | 17–15 | 53.12% |
| Und3rD0G vs Lars | 10–18 | 35.71% |
| Und3rD0G vs Steve | 16–11 | 59.26% |
| Und3rD0G vs Lili | 6–21 | 22.22% |
| Und3rD0G vs Jun | 13–14 | 48.15% |
| Und3rD0G vs Azucena | 13–14 | 48.15% |
| Und3rD0G vs Law | 10–16 | 38.46% |
| Und3rD0G vs Nina | 13–13 | 50.00% |
| Und3rD0G vs Leroy | 14–12 | 53.85% |
| Und3rD0G vs Leo | 19–4 | 82.61% |
| Und3rD0G vs Devil Jin | 9–12 | 42.86% |
| Und3rD0G vs Lee | 12–8 | 60.00% |
| Und3rD0G vs Xiaoyu | 8–11 | 42.11% |
| Und3rD0G vs Victor | 7–7 | 50.00% |
| Und3rD0G vs Jack-8 | 7–6 | 53.85% |
| Und3rD0G vs Claudio | 4–8 | 33.33% |
| Und3rD0G vs Kuma | 6–5 | 54.55% |
| Und3rD0G vs Zafina | 5–6 | 45.45% |
| Und3rD0G vs Feng | 6–4 | 60.00% |
| Und3rD0G vs Raven | 0–10 | 0.00% |
| Und3rD0G vs Alisa | 4–5 | 44.44% |
| Und3rD0G vs Shaheen | 5–3 | 62.50% |
| Und3rD0G vs Panda | 1–2 | 33.33% |
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.