| Duffman vs Kazuya | 89–103 | 46.35% |
| Duffman vs Jin | 72–104 | 40.91% |
| Duffman vs Heihachi | 67–83 | 44.67% |
| Duffman vs King | 75–72 | 51.02% |
| Duffman vs Bryan | 53–81 | 39.55% |
| Duffman vs Hwoarang | 70–59 | 54.26% |
| Duffman vs Steve | 58–61 | 48.74% |
| Duffman vs Law | 44–68 | 39.29% |
| Duffman vs Reina | 45–58 | 43.69% |
| Duffman vs Dragunov | 39–57 | 40.62% |
| Duffman vs Lili | 46–43 | 51.69% |
| Duffman vs Clive | 30–47 | 38.96% |
| Duffman vs Paul | 29–47 | 38.16% |
| Duffman vs Yoshimitsu | 25–50 | 33.33% |
| Duffman vs Azucena | 28–44 | 38.89% |
| Duffman vs Lee | 26–41 | 38.81% |
| Duffman vs Jun | 32–29 | 52.46% |
| Duffman vs Feng | 37–21 | 63.79% |
| Duffman vs Nina | 23–35 | 39.66% |
| Duffman vs Asuka | 21–34 | 38.18% |
| Duffman vs Lars | 20–31 | 39.22% |
| Duffman vs Eddy | 9–42 | 17.65% |
| Duffman vs Lidia | 23–28 | 45.10% |
| Duffman vs Devil Jin | 26–23 | 53.06% |
| Duffman vs Victor | 16–29 | 35.56% |
| Duffman vs Fahkumram | 9–35 | 20.45% |
| Duffman vs Xiaoyu | 19–19 | 50.00% |
| Duffman vs Alisa | 17–20 | 45.95% |
| Duffman vs Leo | 17–14 | 54.84% |
| Duffman vs Leroy | 15–16 | 48.39% |
| Duffman vs Jack-8 | 6–22 | 21.43% |
| Duffman vs Shaheen | 15–10 | 60.00% |
| Duffman vs Claudio | 12–12 | 50.00% |
| Duffman vs Raven | 4–17 | 19.05% |
| Duffman vs Zafina | 3–11 | 21.43% |
| Duffman vs Panda | 4–7 | 36.36% |
| Duffman vs Anna | 2–4 | 33.33% |
| Duffman vs Kuma | 1–4 | 20.00% |
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.