| Jannis vs Law | 6–3 | 66.67% |
| Jannis vs King | 1–4 | 20.00% |
| Jannis vs Heihachi | 1–4 | 20.00% |
| Jannis vs Dragunov | 4–1 | 80.00% |
| Jannis vs Jun | 4–0 | 100.00% |
| Jannis vs Jack-8 | 2–2 | 50.00% |
| Jannis vs Leo | 0–4 | 0.00% |
| Jannis vs Jin | 2–1 | 66.67% |
| Jannis vs Paul | 0–3 | 0.00% |
| Jannis vs Lars | 1–2 | 33.33% |
| Jannis vs Nina | 1–2 | 33.33% |
| Jannis vs Yoshimitsu | 1–1 | 50.00% |
| Jannis vs Feng | 0–2 | 0.00% |
| Jannis vs Lili | 0–2 | 0.00% |
| Jannis vs Leroy | 1–1 | 50.00% |
| Jannis vs Lidia | 1–1 | 50.00% |
| Jannis vs Hwoarang | 0–2 | 0.00% |
| Jannis vs Kazuya | 0–2 | 0.00% |
| Jannis vs Devil Jin | 2–0 | 100.00% |
| Jannis vs Kuma | 1–1 | 50.00% |
| Jannis vs Reina | 1–1 | 50.00% |
| Jannis vs Xiaoyu | 0–1 | 0.00% |
| Jannis vs Zafina | 1–0 | 100.00% |
| Jannis vs Azucena | 1–0 | 100.00% |
| Jannis vs Victor | 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.