| Weff vs King | 9–19 | 32.14% |
| Weff vs Law | 5–11 | 31.25% |
| Weff vs Dragunov | 7–8 | 46.67% |
| Weff vs Xiaoyu | 6–8 | 42.86% |
| Weff vs Steve | 8–6 | 57.14% |
| Weff vs Lili | 5–8 | 38.46% |
| Weff vs Jun | 9–4 | 69.23% |
| Weff vs Jin | 4–8 | 33.33% |
| Weff vs Reina | 9–3 | 75.00% |
| Weff vs Hwoarang | 7–4 | 63.64% |
| Weff vs Kazuya | 4–7 | 36.36% |
| Weff vs Bryan | 2–8 | 20.00% |
| Weff vs Lee | 5–5 | 50.00% |
| Weff vs Lidia | 2–7 | 22.22% |
| Weff vs Leo | 2–5 | 28.57% |
| Weff vs Alisa | 2–5 | 28.57% |
| Weff vs Eddy | 3–4 | 42.86% |
| Weff vs Heihachi | 1–6 | 14.29% |
| Weff vs Clive | 4–1 | 80.00% |
| Weff vs Fahkumram | 1–4 | 20.00% |
| Weff vs Yoshimitsu | 0–4 | 0.00% |
| Weff vs Devil Jin | 1–3 | 25.00% |
| Weff vs Azucena | 2–2 | 50.00% |
| Weff vs Paul | 0–2 | 0.00% |
| Weff vs Feng | 0–2 | 0.00% |
| Weff vs Claudio | 0–2 | 0.00% |
| Weff vs Leroy | 2–0 | 100.00% |
| Weff vs Asuka | 1–0 | 100.00% |
| Weff vs Nina | 0–1 | 0.00% |
| Weff vs Zafina | 1–0 | 100.00% |
| Weff vs Victor | 1–0 | 100.00% |
| Weff vs Anna | 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.