| ninja4 vs Law | 5–10 | 33.33% |
| ninja4 vs Jin | 1–8 | 11.11% |
| ninja4 vs Kazuya | 2–6 | 25.00% |
| ninja4 vs Hwoarang | 3–3 | 50.00% |
| ninja4 vs Bryan | 1–4 | 20.00% |
| ninja4 vs Lili | 4–1 | 80.00% |
| ninja4 vs Claudio | 2–2 | 50.00% |
| ninja4 vs Jun | 0–4 | 0.00% |
| ninja4 vs Raven | 3–1 | 75.00% |
| ninja4 vs Eddy | 0–4 | 0.00% |
| ninja4 vs Shaheen | 3–0 | 100.00% |
| ninja4 vs Reina | 2–1 | 66.67% |
| ninja4 vs King | 0–2 | 0.00% |
| ninja4 vs Asuka | 1–1 | 50.00% |
| ninja4 vs Lars | 0–2 | 0.00% |
| ninja4 vs Alisa | 0–2 | 0.00% |
| ninja4 vs Zafina | 1–1 | 50.00% |
| ninja4 vs Azucena | 0–2 | 0.00% |
| ninja4 vs Victor | 0–2 | 0.00% |
| ninja4 vs Lidia | 2–0 | 100.00% |
| ninja4 vs Clive | 1–1 | 50.00% |
| ninja4 vs Xiaoyu | 0–1 | 0.00% |
| ninja4 vs Steve | 0–1 | 0.00% |
| ninja4 vs Jack-8 | 0–1 | 0.00% |
| ninja4 vs Feng | 0–1 | 0.00% |
| ninja4 vs Kuma | 0–1 | 0.00% |
| ninja4 vs Panda | 0–1 | 0.00% |
| ninja4 vs Leroy | 0–1 | 0.00% |
| ninja4 vs Heihachi | 0–1 | 0.00% |
| ninja4 vs Armor King | 0–1 | 0.00% |
| ninja4 vs Miary Zo | 0–1 | 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.