| 9Boss vs Kazuya | 63–63 | 50.00% |
| 9Boss vs Hwoarang | 64–46 | 58.18% |
| 9Boss vs Dragunov | 49–59 | 45.37% |
| 9Boss vs Victor | 57–48 | 54.29% |
| 9Boss vs Reina | 58–39 | 59.79% |
| 9Boss vs Jin | 42–40 | 51.22% |
| 9Boss vs Lili | 41–36 | 53.25% |
| 9Boss vs King | 37–39 | 48.68% |
| 9Boss vs Paul | 39–36 | 52.00% |
| 9Boss vs Law | 30–40 | 42.86% |
| 9Boss vs Steve | 27–36 | 42.86% |
| 9Boss vs Jun | 36–25–1 | 59.02% |
| 9Boss vs Azucena | 33–28 | 54.10% |
| 9Boss vs Asuka | 19–39 | 32.76% |
| 9Boss vs Bryan | 26–31 | 45.61% |
| 9Boss vs Yoshimitsu | 21–31 | 40.38% |
| 9Boss vs Eddy | 29–22 | 56.86% |
| 9Boss vs Jack-8 | 20–26 | 43.48% |
| 9Boss vs Devil Jin | 23–23 | 50.00% |
| 9Boss vs Feng | 19–26 | 42.22% |
| 9Boss vs Lars | 23–19 | 54.76% |
| 9Boss vs Leo | 16–22 | 42.11% |
| 9Boss vs Alisa | 18–19 | 48.65% |
| 9Boss vs Leroy | 16–21 | 43.24% |
| 9Boss vs Xiaoyu | 9–26 | 25.71% |
| 9Boss vs Claudio | 15–20 | 42.86% |
| 9Boss vs Nina | 17–18 | 48.57% |
| 9Boss vs Lee | 24–11 | 68.57% |
| 9Boss vs Kuma | 12–17 | 41.38% |
| 9Boss vs Shaheen | 9–18 | 33.33% |
| 9Boss vs Raven | 10–16 | 38.46% |
| 9Boss vs Zafina | 7–9 | 43.75% |
| 9Boss vs Clive | 2–13 | 13.33% |
| 9Boss vs Panda | 7–6 | 53.85% |
| 9Boss vs Heihachi | 2–6 | 25.00% |
| 9Boss vs Lidia | 1–6 | 14.29% |
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.