| Wietsje vs King | 6–10 | 37.50% |
| Wietsje vs Hwoarang | 5–8 | 38.46% |
| Wietsje vs Reina | 7–4 | 63.64% |
| Wietsje vs Jin | 5–4 | 55.56% |
| Wietsje vs Kazuya | 4–5 | 44.44% |
| Wietsje vs Steve | 4–4 | 50.00% |
| Wietsje vs Lili | 3–4 | 42.86% |
| Wietsje vs Miary Zo | 0–7 | 0.00% |
| Wietsje vs Law | 2–4 | 33.33% |
| Wietsje vs Armor King | 3–3 | 50.00% |
| Wietsje vs Yoshimitsu | 2–3 | 40.00% |
| Wietsje vs Clive | 0–5 | 0.00% |
| Wietsje vs Bryan | 1–3 | 25.00% |
| Wietsje vs Jack-8 | 0–4 | 0.00% |
| Wietsje vs Asuka | 2–2 | 50.00% |
| Wietsje vs Zafina | 1–3 | 25.00% |
| Wietsje vs Victor | 0–4 | 0.00% |
| Wietsje vs Raven | 3–1 | 75.00% |
| Wietsje vs Heihachi | 2–2 | 50.00% |
| Wietsje vs Fahkumram | 0–4 | 0.00% |
| Wietsje vs Devil Jin | 2–1 | 66.67% |
| Wietsje vs Feng | 1–2 | 33.33% |
| Wietsje vs Alisa | 1–2 | 33.33% |
| Wietsje vs Nina | 2–1 | 66.67% |
| Wietsje vs Azucena | 1–2 | 33.33% |
| Wietsje vs Eddy | 1–2 | 33.33% |
| Wietsje vs Paul | 1–1 | 50.00% |
| Wietsje vs Xiaoyu | 1–1 | 50.00% |
| Wietsje vs Claudio | 1–1 | 50.00% |
| Wietsje vs Jun | 0–2 | 0.00% |
| Wietsje vs Leo | 1–0 | 100.00% |
| Wietsje vs Lars | 0–1 | 0.00% |
| Wietsje vs Lee | 0–1 | 0.00% |
| Wietsje vs Leroy | 0–1 | 0.00% |
| Wietsje 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.