| Underoath vs King | 47–56 | 45.63% |
| Underoath vs Kazuya | 43–39 | 52.44% |
| Underoath vs Jin | 34–39 | 46.58% |
| Underoath vs Dragunov | 33–33 | 50.00% |
| Underoath vs Law | 24–37 | 39.34% |
| Underoath vs Reina | 38–23 | 62.30% |
| Underoath vs Bryan | 28–24 | 53.85% |
| Underoath vs Hwoarang | 13–28 | 31.71% |
| Underoath vs Lili | 17–24 | 41.46% |
| Underoath vs Devil Jin | 13–26 | 33.33% |
| Underoath vs Yoshimitsu | 17–21 | 44.74% |
| Underoath vs Azucena | 18–18 | 50.00% |
| Underoath vs Feng | 17–17 | 50.00% |
| Underoath vs Xiaoyu | 15–15 | 50.00% |
| Underoath vs Asuka | 19–9 | 67.86% |
| Underoath vs Jun | 13–13 | 50.00% |
| Underoath vs Raven | 15–11 | 57.69% |
| Underoath vs Steve | 14–11 | 56.00% |
| Underoath vs Lee | 12–12 | 50.00% |
| Underoath vs Leroy | 10–13 | 43.48% |
| Underoath vs Clive | 10–13 | 43.48% |
| Underoath vs Lars | 9–12 | 42.86% |
| Underoath vs Paul | 10–10 | 50.00% |
| Underoath vs Alisa | 6–8 | 42.86% |
| Underoath vs Heihachi | 12–2 | 85.71% |
| Underoath vs Leo | 5–7 | 41.67% |
| Underoath vs Nina | 7–5 | 58.33% |
| Underoath vs Zafina | 6–4 | 60.00% |
| Underoath vs Lidia | 6–4 | 60.00% |
| Underoath vs Armor King | 5–4 | 55.56% |
| Underoath vs Jack-8 | 4–4 | 50.00% |
| Underoath vs Eddy | 6–2 | 75.00% |
| Underoath vs Victor | 1–5 | 16.67% |
| Underoath vs Kuma | 4–0 | 100.00% |
| Underoath vs Claudio | 0–2 | 0.00% |
| Underoath vs Panda | 0–2 | 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.