| Quack vs Jin | 38–34 | 52.78% |
| Quack vs Dragunov | 28–29 | 49.12% |
| Quack vs Bryan | 25–27 | 48.08% |
| Quack vs Reina | 25–18 | 58.14% |
| Quack vs King | 21–20 | 51.22% |
| Quack vs Kazuya | 24–15 | 61.54% |
| Quack vs Paul | 21–16 | 56.76% |
| Quack vs Law | 14–22 | 38.89% |
| Quack vs Jun | 21–13 | 61.76% |
| Quack vs Steve | 14–19 | 42.42% |
| Quack vs Lili | 24–9 | 72.73% |
| Quack vs Hwoarang | 20–12 | 62.50% |
| Quack vs Leroy | 18–10 | 64.29% |
| Quack vs Azucena | 11–13 | 45.83% |
| Quack vs Yoshimitsu | 9–14 | 39.13% |
| Quack vs Lars | 14–9 | 60.87% |
| Quack vs Asuka | 12–10 | 54.55% |
| Quack vs Heihachi | 16–6 | 72.73% |
| Quack vs Feng | 7–14 | 33.33% |
| Quack vs Alisa | 13–8 | 61.90% |
| Quack vs Victor | 11–10 | 52.38% |
| Quack vs Jack-8 | 9–10 | 47.37% |
| Quack vs Devil Jin | 10–9 | 52.63% |
| Quack vs Shaheen | 8–11 | 42.11% |
| Quack vs Kuma | 8–11 | 42.11% |
| Quack vs Xiaoyu | 10–8 | 55.56% |
| Quack vs Leo | 6–12 | 33.33% |
| Quack vs Eddy | 7–10 | 41.18% |
| Quack vs Lee | 8–8 | 50.00% |
| Quack vs Nina | 7–5 | 58.33% |
| Quack vs Zafina | 6–5 | 54.55% |
| Quack vs Claudio | 5–5 | 50.00% |
| Quack vs Lidia | 4–3 | 57.14% |
| Quack vs Panda | 5–1 | 83.33% |
| Quack vs Raven | 6–0 | 100.00% |
| Quack vs Clive | 0–5 | 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.