| Underfist23 vs King | 8–19 | 29.63% |
| Underfist23 vs Reina | 13–12 | 52.00% |
| Underfist23 vs Kazuya | 9–10 | 47.37% |
| Underfist23 vs Jin | 8–8 | 50.00% |
| Underfist23 vs Steve | 12–4 | 75.00% |
| Underfist23 vs Dragunov | 4–11 | 26.67% |
| Underfist23 vs Hwoarang | 6–8 | 42.86% |
| Underfist23 vs Azucena | 9–5 | 64.29% |
| Underfist23 vs Jun | 7–4 | 63.64% |
| Underfist23 vs Eddy | 3–8 | 27.27% |
| Underfist23 vs Law | 3–7 | 30.00% |
| Underfist23 vs Bryan | 4–6 | 40.00% |
| Underfist23 vs Alisa | 5–5 | 50.00% |
| Underfist23 vs Lidia | 3–7 | 30.00% |
| Underfist23 vs Paul | 4–5 | 44.44% |
| Underfist23 vs Xiaoyu | 5–4 | 55.56% |
| Underfist23 vs Lee | 0–9 | 0.00% |
| Underfist23 vs Nina | 6–2 | 75.00% |
| Underfist23 vs Victor | 5–3 | 62.50% |
| Underfist23 vs Leroy | 4–3 | 57.14% |
| Underfist23 vs Raven | 4–3 | 57.14% |
| Underfist23 vs Asuka | 1–5 | 16.67% |
| Underfist23 vs Lili | 4–2 | 66.67% |
| Underfist23 vs Claudio | 4–2 | 66.67% |
| Underfist23 vs Jack-8 | 3–2 | 60.00% |
| Underfist23 vs Yoshimitsu | 0–4 | 0.00% |
| Underfist23 vs Feng | 2–2 | 50.00% |
| Underfist23 vs Leo | 2–2 | 50.00% |
| Underfist23 vs Kuma | 1–3 | 25.00% |
| Underfist23 vs Heihachi | 4–0 | 100.00% |
| Underfist23 vs Shaheen | 0–3 | 0.00% |
| Underfist23 vs Devil Jin | 1–1 | 50.00% |
| Underfist23 vs Lars | 1–1 | 50.00% |
| Underfist23 vs Panda | 1–1 | 50.00% |
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.