| Valck vs King | 27–39 | 40.91% |
| Valck vs Jin | 26–38 | 40.62% |
| Valck vs Kazuya | 18–45 | 28.57% |
| Valck vs Hwoarang | 29–27 | 51.79% |
| Valck vs Bryan | 19–27 | 41.30% |
| Valck vs Reina | 20–24 | 45.45% |
| Valck vs Jun | 18–19 | 48.65% |
| Valck vs Law | 16–17 | 48.48% |
| Valck vs Yoshimitsu | 15–17 | 46.88% |
| Valck vs Dragunov | 8–18 | 30.77% |
| Valck vs Victor | 11–13 | 45.83% |
| Valck vs Eddy | 12–12 | 50.00% |
| Valck vs Steve | 13–10 | 56.52% |
| Valck vs Lili | 5–18 | 21.74% |
| Valck vs Lars | 5–18 | 21.74% |
| Valck vs Paul | 14–8 | 63.64% |
| Valck vs Devil Jin | 8–14 | 36.36% |
| Valck vs Azucena | 14–8 | 63.64% |
| Valck vs Heihachi | 10–12 | 45.45% |
| Valck vs Asuka | 11–7 | 61.11% |
| Valck vs Nina | 8–8 | 50.00% |
| Valck vs Lee | 11–5 | 68.75% |
| Valck vs Xiaoyu | 6–9 | 40.00% |
| Valck vs Raven | 10–3 | 76.92% |
| Valck vs Clive | 9–4 | 69.23% |
| Valck vs Feng | 4–7 | 36.36% |
| Valck vs Jack-8 | 5–5 | 50.00% |
| Valck vs Kuma | 2–7 | 22.22% |
| Valck vs Alisa | 5–3 | 62.50% |
| Valck vs Lidia | 1–6 | 14.29% |
| Valck vs Claudio | 5–1 | 83.33% |
| Valck vs Anna | 3–3 | 50.00% |
| Valck vs Leo | 2–2 | 50.00% |
| Valck vs Shaheen | 0–2 | 0.00% |
| Valck vs Panda | 0–2 | 0.00% |
| Valck vs Zafina | 2–0 | 100.00% |
| Valck vs Leroy | 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.