| Welandrothefumo vs Law | 8–4 | 66.67% |
| Welandrothefumo vs Reina | 5–6 | 45.45% |
| Welandrothefumo vs Nina | 5–5 | 50.00% |
| Welandrothefumo vs Hwoarang | 6–3 | 66.67% |
| Welandrothefumo vs King | 5–3 | 62.50% |
| Welandrothefumo vs Lars | 3–5 | 37.50% |
| Welandrothefumo vs Jin | 4–3 | 57.14% |
| Welandrothefumo vs Bryan | 2–5 | 28.57% |
| Welandrothefumo vs Steve | 3–4 | 42.86% |
| Welandrothefumo vs Azucena | 4–3 | 57.14% |
| Welandrothefumo vs Dragunov | 2–4 | 33.33% |
| Welandrothefumo vs Victor | 4–2 | 66.67% |
| Welandrothefumo vs Clive | 3–3 | 50.00% |
| Welandrothefumo vs Jack-8 | 4–1 | 80.00% |
| Welandrothefumo vs Devil Jin | 2–3 | 40.00% |
| Welandrothefumo vs Claudio | 3–2 | 60.00% |
| Welandrothefumo vs Heihachi | 3–2 | 60.00% |
| Welandrothefumo vs Xiaoyu | 2–2 | 50.00% |
| Welandrothefumo vs Kazuya | 3–1 | 75.00% |
| Welandrothefumo vs Lee | 2–2 | 50.00% |
| Welandrothefumo vs Eddy | 3–1 | 75.00% |
| Welandrothefumo vs Yoshimitsu | 1–1 | 50.00% |
| Welandrothefumo vs Asuka | 2–0 | 100.00% |
| Welandrothefumo vs Lili | 1–1 | 50.00% |
| Welandrothefumo vs Leo | 2–0 | 100.00% |
| Welandrothefumo vs Leroy | 1–1 | 50.00% |
| Welandrothefumo vs Alisa | 0–1 | 0.00% |
| Welandrothefumo vs Shaheen | 0–1 | 0.00% |
| Welandrothefumo vs Panda | 1–0 | 100.00% |
| Welandrothefumo vs Zafina | 1–0 | 100.00% |
| Welandrothefumo vs Jun | 1–0 | 100.00% |
| Welandrothefumo vs Raven | 0–1 | 0.00% |
| Welandrothefumo vs Lidia | 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.