| Duffy | Qtipzzz vs King | 173–52 | 76.89% |
| Duffy | Qtipzzz vs Bryan | 155–45 | 77.50% |
| Duffy | Qtipzzz vs Steve | 142–38 | 78.89% |
| Duffy | Qtipzzz vs Jin | 109–30 | 78.42% |
| Duffy | Qtipzzz vs Heihachi | 79–30 | 72.48% |
| Duffy | Qtipzzz vs Yoshimitsu | 83–25 | 76.85% |
| Duffy | Qtipzzz vs Paul | 92–14 | 86.79% |
| Duffy | Qtipzzz vs Kazuya | 67–32 | 67.68% |
| Duffy | Qtipzzz vs Hwoarang | 70–19 | 78.65% |
| Duffy | Qtipzzz vs Lili | 56–16 | 77.78% |
| Duffy | Qtipzzz vs Dragunov | 50–22 | 69.44% |
| Duffy | Qtipzzz vs Raven | 49–22 | 69.01% |
| Duffy | Qtipzzz vs Lars | 49–17 | 74.24% |
| Duffy | Qtipzzz vs Lee | 38–25 | 60.32% |
| Duffy | Qtipzzz vs Eddy | 43–16 | 72.88% |
| Duffy | Qtipzzz vs Law | 49–7 | 87.50% |
| Duffy | Qtipzzz vs Alisa | 40–13 | 75.47% |
| Duffy | Qtipzzz vs Xiaoyu | 36–15 | 70.59% |
| Duffy | Qtipzzz vs Clive | 36–15 | 70.59% |
| Duffy | Qtipzzz vs Reina | 38–8 | 82.61% |
| Duffy | Qtipzzz vs Nina | 39–5 | 88.64% |
| Duffy | Qtipzzz vs Victor | 35–6 | 85.37% |
| Duffy | Qtipzzz vs Devil Jin | 29–10 | 74.36% |
| Duffy | Qtipzzz vs Kuma | 26–10 | 72.22% |
| Duffy | Qtipzzz vs Jack-8 | 25–8 | 75.76% |
| Duffy | Qtipzzz vs Leo | 22–9 | 70.97% |
| Duffy | Qtipzzz vs Claudio | 17–14 | 54.84% |
| Duffy | Qtipzzz vs Feng | 20–9 | 68.97% |
| Duffy | Qtipzzz vs Lidia | 25–4 | 86.21% |
| Duffy | Qtipzzz vs Fahkumram | 21–6 | 77.78% |
| Duffy | Qtipzzz vs Jun | 23–3 | 88.46% |
| Duffy | Qtipzzz vs Leroy | 22–1 | 95.65% |
| Duffy | Qtipzzz vs Azucena | 18–5 | 78.26% |
| Duffy | Qtipzzz vs Panda | 13–9 | 59.09% |
| Duffy | Qtipzzz vs Shaheen | 17–2 | 89.47% |
| Duffy | Qtipzzz vs Asuka | 9–5 | 64.29% |
| Duffy | Qtipzzz vs Armor King | 10–3 | 76.92% |
| Duffy | Qtipzzz vs Zafina | 5–7 | 41.67% |
| Duffy | Qtipzzz vs Anna | 2–5 | 28.57% |
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.