| Quaternion vs King | 41–60 | 40.59% |
| Quaternion vs Paul | 29–57 | 33.72% |
| Quaternion vs Reina | 28–48–1 | 36.84% |
| Quaternion vs Kazuya | 41–32 | 56.16% |
| Quaternion vs Dragunov | 31–39 | 44.29% |
| Quaternion vs Jin | 21–44–1 | 32.31% |
| Quaternion vs Clive | 26–40 | 39.39% |
| Quaternion vs Hwoarang | 28–33 | 45.90% |
| Quaternion vs Steve | 23–27 | 46.00% |
| Quaternion vs Bryan | 16–30 | 34.78% |
| Quaternion vs Asuka | 25–18 | 58.14% |
| Quaternion vs Jun | 16–24 | 40.00% |
| Quaternion vs Victor | 8–32 | 20.00% |
| Quaternion vs Law | 12–24 | 33.33% |
| Quaternion vs Jack-8 | 10–21 | 32.26% |
| Quaternion vs Xiaoyu | 14–16 | 46.67% |
| Quaternion vs Yoshimitsu | 7–19–1 | 26.92% |
| Quaternion vs Lee | 9–17 | 34.62% |
| Quaternion vs Lili | 10–15 | 40.00% |
| Quaternion vs Lars | 11–14 | 44.00% |
| Quaternion vs Kuma | 5–19 | 20.83% |
| Quaternion vs Azucena | 7–17 | 29.17% |
| Quaternion vs Devil Jin | 10–13 | 43.48% |
| Quaternion vs Eddy | 5–17 | 22.73% |
| Quaternion vs Heihachi | 12–10 | 54.55% |
| Quaternion vs Alisa | 13–8 | 61.90% |
| Quaternion vs Nina | 11–8 | 57.89% |
| Quaternion vs Leroy | 7–11 | 38.89% |
| Quaternion vs Leo | 10–7 | 58.82% |
| Quaternion vs Claudio | 4–11 | 26.67% |
| Quaternion vs Raven | 6–3 | 66.67% |
| Quaternion vs Feng | 4–4 | 50.00% |
| Quaternion vs Zafina | 5–3 | 62.50% |
| Quaternion vs Shaheen | 0–7 | 0.00% |
| Quaternion vs Fahkumram | 0–5 | 0.00% |
| Quaternion vs Panda | 0–4 | 0.00% |
| Quaternion vs Lidia | 3–0 | 100.00% |
| Quaternion vs Anna | 1–0 | 100.00% |
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.