| duffman vs Kazuya | 47–39 | 54.65% |
| duffman vs Reina | 53–30 | 63.86% |
| duffman vs Bryan | 33–35 | 48.53% |
| duffman vs King | 28–33 | 45.90% |
| duffman vs Heihachi | 34–18 | 65.38% |
| duffman vs Asuka | 23–19 | 54.76% |
| duffman vs Jin | 16–25 | 39.02% |
| duffman vs Lili | 24–16 | 60.00% |
| duffman vs Dragunov | 25–15 | 62.50% |
| duffman vs Azucena | 17–18 | 48.57% |
| duffman vs Paul | 21–11 | 65.62% |
| duffman vs Hwoarang | 17–14 | 54.84% |
| duffman vs Yoshimitsu | 11–14 | 44.00% |
| duffman vs Feng | 10–15 | 40.00% |
| duffman vs Nina | 10–15 | 40.00% |
| duffman vs Devil Jin | 12–12 | 50.00% |
| duffman vs Leo | 11–10 | 52.38% |
| duffman vs Steve | 14–6 | 70.00% |
| duffman vs Xiaoyu | 7–12 | 36.84% |
| duffman vs Victor | 6–13 | 31.58% |
| duffman vs Kuma | 9–9 | 50.00% |
| duffman vs Lee | 10–7 | 58.82% |
| duffman vs Jun | 6–11 | 35.29% |
| duffman vs Eddy | 9–8 | 52.94% |
| duffman vs Raven | 8–6 | 57.14% |
| duffman vs Jack-8 | 5–8 | 38.46% |
| duffman vs Zafina | 7–6 | 53.85% |
| duffman vs Law | 6–6 | 50.00% |
| duffman vs Lars | 1–11 | 8.33% |
| duffman vs Shaheen | 5–7 | 41.67% |
| duffman vs Alisa | 6–5 | 54.55% |
| duffman vs Claudio | 4–6 | 40.00% |
| duffman vs Lidia | 1–7 | 12.50% |
| duffman vs Clive | 2–6 | 25.00% |
| duffman vs Panda | 4–2 | 66.67% |
| duffman vs Leroy | 3–3 | 50.00% |
| duffman vs Anna | 4–1 | 80.00% |
| duffman vs Fahkumram | 0–4 | 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.