| 9tails vs Eddy | 11–21 | 34.38% |
| 9tails vs Law | 7–18 | 28.00% |
| 9tails vs Lili | 13–4 | 76.47% |
| 9tails vs Armor King | 7–10 | 41.18% |
| 9tails vs Hwoarang | 9–6 | 60.00% |
| 9tails vs Steve | 7–8 | 46.67% |
| 9tails vs Xiaoyu | 4–9 | 30.77% |
| 9tails vs Jin | 4–8 | 33.33% |
| 9tails vs Dragunov | 4–7 | 36.36% |
| 9tails vs Reina | 6–5 | 54.55% |
| 9tails vs Jun | 5–4 | 55.56% |
| 9tails vs Azucena | 8–1 | 88.89% |
| 9tails vs Alisa | 2–6 | 25.00% |
| 9tails vs Raven | 6–2 | 75.00% |
| 9tails vs King | 5–2 | 71.43% |
| 9tails vs Lidia | 1–6 | 14.29% |
| 9tails vs Kazuya | 1–5 | 16.67% |
| 9tails vs Lars | 0–6 | 0.00% |
| 9tails vs Victor | 3–3 | 50.00% |
| 9tails vs Devil Jin | 2–3 | 40.00% |
| 9tails vs Kuma | 3–2 | 60.00% |
| 9tails vs Leroy | 3–2 | 60.00% |
| 9tails vs Paul | 3–1 | 75.00% |
| 9tails vs Asuka | 2–2 | 50.00% |
| 9tails vs Lee | 3–1 | 75.00% |
| 9tails vs Jack-8 | 0–3 | 0.00% |
| 9tails vs Claudio | 1–2 | 33.33% |
| 9tails vs Nina | 2–1 | 66.67% |
| 9tails vs Clive | 1–2 | 33.33% |
| 9tails vs Fahkumram | 1–2 | 33.33% |
| 9tails vs Miary Zo | 1–2 | 33.33% |
| 9tails vs Leo | 0–2 | 0.00% |
| 9tails vs Heihachi | 1–1 | 50.00% |
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.