| Duppy vs Hwoarang | 44–38 | 53.66% |
| Duppy vs Jin | 35–42 | 45.45% |
| Duppy vs Kazuya | 36–40 | 47.37% |
| Duppy vs Reina | 39–34 | 53.42% |
| Duppy vs King | 34–38 | 47.22% |
| Duppy vs Law | 43–24 | 64.18% |
| Duppy vs Bryan | 26–22 | 54.17% |
| Duppy vs Steve | 22–23 | 48.89% |
| Duppy vs Lidia | 28–15 | 65.12% |
| Duppy vs Asuka | 21–19 | 52.50% |
| Duppy vs Lili | 21–19 | 52.50% |
| Duppy vs Paul | 22–17 | 56.41% |
| Duppy vs Yoshimitsu | 19–20 | 48.72% |
| Duppy vs Dragunov | 18–15 | 54.55% |
| Duppy vs Feng | 15–9 | 62.50% |
| Duppy vs Lee | 12–11 | 52.17% |
| Duppy vs Devil Jin | 14–8 | 63.64% |
| Duppy vs Azucena | 9–12 | 42.86% |
| Duppy vs Heihachi | 11–9 | 55.00% |
| Duppy vs Eddy | 8–10 | 44.44% |
| Duppy vs Nina | 5–12 | 29.41% |
| Duppy vs Leroy | 8–8 | 50.00% |
| Duppy vs Lars | 9–6 | 60.00% |
| Duppy vs Kuma | 8–7 | 53.33% |
| Duppy vs Jun | 7–7 | 50.00% |
| Duppy vs Jack-8 | 4–9 | 30.77% |
| Duppy vs Leo | 7–6 | 53.85% |
| Duppy vs Victor | 4–9 | 30.77% |
| Duppy vs Raven | 6–6 | 50.00% |
| Duppy vs Alisa | 4–6 | 40.00% |
| Duppy vs Xiaoyu | 7–2 | 77.78% |
| Duppy vs Claudio | 2–7 | 22.22% |
| Duppy vs Clive | 2–3 | 40.00% |
| Duppy vs Panda | 4–0 | 100.00% |
| Duppy vs Shaheen | 1–2 | 33.33% |
| Duppy vs Zafina | 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.