| Assassin vs King | 107–67–1 | 61.49% |
| Assassin vs Jin | 58–62 | 48.33% |
| Assassin vs Law | 44–66 | 40.00% |
| Assassin vs Kazuya | 50–52 | 49.02% |
| Assassin vs Steve | 51–50 | 50.50% |
| Assassin vs Bryan | 41–59 | 41.00% |
| Assassin vs Hwoarang | 50–45–1 | 52.63% |
| Assassin vs Reina | 57–39 | 59.38% |
| Assassin vs Azucena | 44–38 | 53.66% |
| Assassin vs Asuka | 37–44 | 45.68% |
| Assassin vs Lili | 28–47 | 37.33% |
| Assassin vs Dragunov | 25–43 | 36.76% |
| Assassin vs Paul | 29–38 | 43.28% |
| Assassin vs Jun | 31–29 | 51.67% |
| Assassin vs Eddy | 25–33 | 43.10% |
| Assassin vs Yoshimitsu | 26–31 | 45.61% |
| Assassin vs Lars | 31–18 | 63.27% |
| Assassin vs Victor | 24–23 | 51.06% |
| Assassin vs Nina | 32–13 | 71.11% |
| Assassin vs Leroy | 13–32 | 28.89% |
| Assassin vs Heihachi | 30–14 | 68.18% |
| Assassin vs Feng | 24–18 | 57.14% |
| Assassin vs Xiaoyu | 15–25 | 37.50% |
| Assassin vs Alisa | 20–19 | 51.28% |
| Assassin vs Devil Jin | 23–15 | 60.53% |
| Assassin vs Raven | 16–20 | 44.44% |
| Assassin vs Lee | 21–12 | 63.64% |
| Assassin vs Lidia | 13–16 | 44.83% |
| Assassin vs Claudio | 15–13 | 53.57% |
| Assassin vs Zafina | 12–16 | 42.86% |
| Assassin vs Fahkumram | 16–12 | 57.14% |
| Assassin vs Leo | 10–17 | 37.04% |
| Assassin vs Jack-8 | 8–11 | 42.11% |
| Assassin vs Shaheen | 8–6 | 57.14% |
| Assassin vs Kuma | 8–5 | 61.54% |
| Assassin vs Anna | 4–5 | 44.44% |
| Assassin vs Clive | 7–1 | 87.50% |
| Assassin vs Panda | 4–0 | 100.00% |
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.