| Kallefar vs Eddy | 15–22 | 40.54% |
| Kallefar vs King | 10–18 | 35.71% |
| Kallefar vs Jin | 7–21 | 25.00% |
| Kallefar vs Kazuya | 9–16 | 36.00% |
| Kallefar vs Steve | 14–11 | 56.00% |
| Kallefar vs Reina | 11–11 | 50.00% |
| Kallefar vs Victor | 10–12 | 45.45% |
| Kallefar vs Law | 4–17 | 19.05% |
| Kallefar vs Devil Jin | 8–13 | 38.10% |
| Kallefar vs Paul | 9–9 | 50.00% |
| Kallefar vs Hwoarang | 8–10 | 44.44% |
| Kallefar vs Dragunov | 7–11 | 38.89% |
| Kallefar vs Bryan | 8–8 | 50.00% |
| Kallefar vs Lili | 6–10 | 37.50% |
| Kallefar vs Yoshimitsu | 6–9 | 40.00% |
| Kallefar vs Alisa | 6–9 | 40.00% |
| Kallefar vs Nina | 9–6 | 60.00% |
| Kallefar vs Jun | 9–4 | 69.23% |
| Kallefar vs Raven | 6–7 | 46.15% |
| Kallefar vs Asuka | 5–6 | 45.45% |
| Kallefar vs Claudio | 6–4 | 60.00% |
| Kallefar vs Lee | 2–8 | 20.00% |
| Kallefar vs Leroy | 4–6 | 40.00% |
| Kallefar vs Lars | 3–6 | 33.33% |
| Kallefar vs Xiaoyu | 0–8 | 0.00% |
| Kallefar vs Leo | 1–6 | 14.29% |
| Kallefar vs Azucena | 2–5 | 28.57% |
| Kallefar vs Jack-8 | 3–3 | 50.00% |
| Kallefar vs Feng | 0–4 | 0.00% |
| Kallefar vs Zafina | 3–1 | 75.00% |
| Kallefar vs Shaheen | 1–2 | 33.33% |
| Kallefar vs Panda | 0–2 | 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.