| Nil21 vs Yoshimitsu | 6–2 | 75.00% |
| Nil21 vs Hwoarang | 5–3 | 62.50% |
| Nil21 vs Kazuya | 5–3 | 62.50% |
| Nil21 vs Steve | 4–3 | 57.14% |
| Nil21 vs Alisa | 3–4 | 42.86% |
| Nil21 vs King | 4–1 | 80.00% |
| Nil21 vs Leroy | 4–1 | 80.00% |
| Nil21 vs Jin | 3–1 | 75.00% |
| Nil21 vs Bryan | 4–0 | 100.00% |
| Nil21 vs Lili | 4–0 | 100.00% |
| Nil21 vs Jun | 2–2 | 50.00% |
| Nil21 vs Heihachi | 4–0 | 100.00% |
| Nil21 vs Miary Zo | 2–2 | 50.00% |
| Nil21 vs Claudio | 0–3 | 0.00% |
| Nil21 vs Kuma | 0–3 | 0.00% |
| Nil21 vs Victor | 1–2 | 33.33% |
| Nil21 vs Eddy | 1–2 | 33.33% |
| Nil21 vs Clive | 1–2 | 33.33% |
| Nil21 vs Armor King | 2–1 | 66.67% |
| Nil21 vs Paul | 2–0 | 100.00% |
| Nil21 vs Law | 2–0 | 100.00% |
| Nil21 vs Asuka | 2–0 | 100.00% |
| Nil21 vs Feng | 2–0 | 100.00% |
| Nil21 vs Dragunov | 2–0 | 100.00% |
| Nil21 vs Lars | 2–0 | 100.00% |
| Nil21 vs Lidia | 2–0 | 100.00% |
| Nil21 vs Jack-8 | 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.