| 9nine vs King | 5–10 | 33.33% |
| 9nine vs Armor King | 2–12 | 14.29% |
| 9nine vs Steve | 2–7 | 22.22% |
| 9nine vs Nina | 5–4 | 55.56% |
| 9nine vs Reina | 6–3 | 66.67% |
| 9nine vs Azucena | 3–6 | 33.33% |
| 9nine vs Hwoarang | 2–6 | 25.00% |
| 9nine vs Jin | 0–8 | 0.00% |
| 9nine vs Dragunov | 2–6 | 25.00% |
| 9nine vs Lee | 0–8 | 0.00% |
| 9nine vs Lili | 3–4 | 42.86% |
| 9nine vs Fahkumram | 1–6 | 14.29% |
| 9nine vs Eddy | 3–3 | 50.00% |
| 9nine vs Heihachi | 3–3 | 50.00% |
| 9nine vs Yoshimitsu | 0–5 | 0.00% |
| 9nine vs Bryan | 2–3 | 40.00% |
| 9nine vs Kazuya | 2–3 | 40.00% |
| 9nine vs Asuka | 1–4 | 20.00% |
| 9nine vs Alisa | 2–3 | 40.00% |
| 9nine vs Law | 2–2 | 50.00% |
| 9nine vs Lars | 1–3 | 25.00% |
| 9nine vs Claudio | 1–3 | 25.00% |
| 9nine vs Raven | 0–4 | 0.00% |
| 9nine vs Devil Jin | 1–2 | 33.33% |
| 9nine vs Leo | 0–3 | 0.00% |
| 9nine vs Kuma | 0–3 | 0.00% |
| 9nine vs Leroy | 2–1 | 66.67% |
| 9nine vs Victor | 0–3 | 0.00% |
| 9nine vs Lidia | 1–2 | 33.33% |
| 9nine vs Clive | 0–3 | 0.00% |
| 9nine vs Xiaoyu | 2–0 | 100.00% |
| 9nine vs Jack-8 | 0–2 | 0.00% |
| 9nine vs Jun | 0–2 | 0.00% |
| 9nine 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.