| K9Tails vs King | 34–32 | 51.52% |
| K9Tails vs Jin | 38–21 | 64.41% |
| K9Tails vs Kazuya | 27–22 | 55.10% |
| K9Tails vs Bryan | 23–21 | 52.27% |
| K9Tails vs Reina | 25–14 | 64.10% |
| K9Tails vs Steve | 19–18 | 51.35% |
| K9Tails vs Yoshimitsu | 22–12 | 64.71% |
| K9Tails vs Hwoarang | 24–8 | 75.00% |
| K9Tails vs Jun | 14–18 | 43.75% |
| K9Tails vs Paul | 15–16 | 48.39% |
| K9Tails vs Jack-8 | 13–18 | 41.94% |
| K9Tails vs Lee | 11–20 | 35.48% |
| K9Tails vs Eddy | 14–16 | 46.67% |
| K9Tails vs Azucena | 14–13 | 51.85% |
| K9Tails vs Victor | 13–14 | 48.15% |
| K9Tails vs Lili | 10–16 | 38.46% |
| K9Tails vs Dragunov | 12–14 | 46.15% |
| K9Tails vs Lars | 10–16 | 38.46% |
| K9Tails vs Nina | 12–14 | 46.15% |
| K9Tails vs Raven | 10–12 | 45.45% |
| K9Tails vs Clive | 10–10 | 50.00% |
| K9Tails vs Law | 12–7 | 63.16% |
| K9Tails vs Xiaoyu | 10–7 | 58.82% |
| K9Tails vs Leo | 11–6 | 64.71% |
| K9Tails vs Leroy | 11–4 | 73.33% |
| K9Tails vs Heihachi | 7–8 | 46.67% |
| K9Tails vs Feng | 3–11 | 21.43% |
| K9Tails vs Claudio | 8–6 | 57.14% |
| K9Tails vs Alisa | 8–5 | 61.54% |
| K9Tails vs Asuka | 5–5 | 50.00% |
| K9Tails vs Devil Jin | 6–3 | 66.67% |
| K9Tails vs Shaheen | 4–5 | 44.44% |
| K9Tails vs Kuma | 5–2 | 71.43% |
| K9Tails vs Panda | 2–3 | 40.00% |
| K9Tails vs Zafina | 0–3 | 0.00% |
| K9Tails vs Armor King | 1–2 | 33.33% |
| K9Tails vs Lidia | 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.