| NammaJeff21 vs Heihachi | 6–1 | 85.71% |
| NammaJeff21 vs Jin | 3–3 | 50.00% |
| NammaJeff21 vs King | 3–2 | 60.00% |
| NammaJeff21 vs Dragunov | 4–1 | 80.00% |
| NammaJeff21 vs Steve | 3–0 | 100.00% |
| NammaJeff21 vs Yoshimitsu | 0–2 | 0.00% |
| NammaJeff21 vs Alisa | 1–1 | 50.00% |
| NammaJeff21 vs Jun | 2–0 | 100.00% |
| NammaJeff21 vs Victor | 0–2 | 0.00% |
| NammaJeff21 vs Law | 0–1 | 0.00% |
| NammaJeff21 vs Hwoarang | 1–0 | 100.00% |
| NammaJeff21 vs Kazuya | 1–0 | 100.00% |
| NammaJeff21 vs Lars | 1–0 | 100.00% |
| NammaJeff21 vs Claudio | 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.