| JustDuck vs Kazuya | 90–94 | 48.91% |
| JustDuck vs Bryan | 73–71 | 50.69% |
| JustDuck vs Armor King | 58–54 | 51.79% |
| JustDuck vs Jin | 55–37–1 | 59.78% |
| JustDuck vs Lee | 47–44 | 51.65% |
| JustDuck vs King | 51–39 | 56.67% |
| JustDuck vs Dragunov | 40–48 | 45.45% |
| JustDuck vs Heihachi | 44–38 | 53.66% |
| JustDuck vs Steve | 47–31 | 60.26% |
| JustDuck vs Hwoarang | 29–29 | 50.00% |
| JustDuck vs Paul | 30–27 | 52.63% |
| JustDuck vs Lili | 24–19 | 55.81% |
| JustDuck vs Xiaoyu | 29–13 | 69.05% |
| JustDuck vs Devil Jin | 24–17 | 58.54% |
| JustDuck vs Law | 24–15 | 61.54% |
| JustDuck vs Yoshimitsu | 19–19 | 50.00% |
| JustDuck vs Reina | 17–20 | 45.95% |
| JustDuck vs Miary Zo | 13–23 | 36.11% |
| JustDuck vs Fahkumram | 19–12 | 61.29% |
| JustDuck vs Eddy | 18–12 | 60.00% |
| JustDuck vs Feng | 16–11 | 59.26% |
| JustDuck vs Lars | 10–17 | 37.04% |
| JustDuck vs Clive | 10–15 | 40.00% |
| JustDuck vs Azucena | 10–12 | 45.45% |
| JustDuck vs Asuka | 7–14 | 33.33% |
| JustDuck vs Nina | 6–15 | 28.57% |
| JustDuck vs Jun | 11–10 | 52.38% |
| JustDuck vs Claudio | 12–6 | 66.67% |
| JustDuck vs Shaheen | 7–10 | 41.18% |
| JustDuck vs Zafina | 10–6 | 62.50% |
| JustDuck vs Lidia | 6–10 | 37.50% |
| JustDuck vs Leroy | 9–6 | 60.00% |
| JustDuck vs Jack-8 | 6–8 | 42.86% |
| JustDuck vs Alisa | 10–4 | 71.43% |
| JustDuck vs Leo | 5–5 | 50.00% |
| JustDuck vs Victor | 5–5 | 50.00% |
| JustDuck vs Raven | 1–8 | 11.11% |
| JustDuck vs Kuma | 1–6 | 14.29% |
| JustDuck vs Anna | 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.