| K9999 vs Zafina | 41–55 | 42.71% |
| K9999 vs Hwoarang | 22–8 | 73.33% |
| K9999 vs Law | 15–14 | 51.72% |
| K9999 vs King | 23–6 | 79.31% |
| K9999 vs Steve | 23–4 | 85.19% |
| K9999 vs Reina | 21–4 | 84.00% |
| K9999 vs Kazuya | 18–4 | 81.82% |
| K9999 vs Bryan | 14–6 | 70.00% |
| K9999 vs Feng | 13–6 | 68.42% |
| K9999 vs Paul | 15–3 | 83.33% |
| K9999 vs Yoshimitsu | 9–9 | 50.00% |
| K9999 vs Asuka | 12–6 | 66.67% |
| K9999 vs Jin | 13–4 | 76.47% |
| K9999 vs Dragunov | 13–4 | 76.47% |
| K9999 vs Lili | 14–2 | 87.50% |
| K9999 vs Jun | 8–6 | 57.14% |
| K9999 vs Leroy | 7–6 | 53.85% |
| K9999 vs Victor | 8–5 | 61.54% |
| K9999 vs Eddy | 8–5 | 61.54% |
| K9999 vs Xiaoyu | 8–4 | 66.67% |
| K9999 vs Azucena | 9–3 | 75.00% |
| K9999 vs Lee | 5–5 | 50.00% |
| K9999 vs Leo | 4–4 | 50.00% |
| K9999 vs Jack-8 | 4–2 | 66.67% |
| K9999 vs Devil Jin | 2–4 | 33.33% |
| K9999 vs Lars | 3–3 | 50.00% |
| K9999 vs Claudio | 3–3 | 50.00% |
| K9999 vs Raven | 5–0 | 100.00% |
| K9999 vs Nina | 3–0 | 100.00% |
| K9999 vs Kuma | 3–0 | 100.00% |
| K9999 vs Shaheen | 1–1 | 50.00% |
| K9999 vs Alisa | 0–1 | 0.00% |
| K9999 vs Panda | 1–0 | 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.