| Vaalkiem vs Heihachi | 38–56 | 40.43% |
| Vaalkiem vs Kazuya | 39–28 | 58.21% |
| Vaalkiem vs Jin | 41–20 | 67.21% |
| Vaalkiem vs King | 33–18 | 64.71% |
| Vaalkiem vs Reina | 22–24 | 47.83% |
| Vaalkiem vs Bryan | 25–17 | 59.52% |
| Vaalkiem vs Paul | 21–15 | 58.33% |
| Vaalkiem vs Dragunov | 15–18 | 45.45% |
| Vaalkiem vs Jun | 21–9 | 70.00% |
| Vaalkiem vs Law | 20–9 | 68.97% |
| Vaalkiem vs Lee | 11–18 | 37.93% |
| Vaalkiem vs Hwoarang | 18–9 | 66.67% |
| Vaalkiem vs Steve | 17–10 | 62.96% |
| Vaalkiem vs Xiaoyu | 10–12 | 45.45% |
| Vaalkiem vs Eddy | 8–14 | 36.36% |
| Vaalkiem vs Yoshimitsu | 14–7 | 66.67% |
| Vaalkiem vs Lili | 16–4 | 80.00% |
| Vaalkiem vs Alisa | 11–7 | 61.11% |
| Vaalkiem vs Clive | 13–5 | 72.22% |
| Vaalkiem vs Armor King | 9–9 | 50.00% |
| Vaalkiem vs Lars | 9–8 | 52.94% |
| Vaalkiem vs Azucena | 10–7 | 58.82% |
| Vaalkiem vs Raven | 10–7 | 58.82% |
| Vaalkiem vs Nina | 11–5 | 68.75% |
| Vaalkiem vs Kuma | 8–8 | 50.00% |
| Vaalkiem vs Victor | 10–6 | 62.50% |
| Vaalkiem vs Asuka | 7–7 | 50.00% |
| Vaalkiem vs Claudio | 10–4 | 71.43% |
| Vaalkiem vs Devil Jin | 4–9 | 30.77% |
| Vaalkiem vs Feng | 6–7 | 46.15% |
| Vaalkiem vs Lidia | 8–4 | 66.67% |
| Vaalkiem vs Leo | 7–4 | 63.64% |
| Vaalkiem vs Fahkumram | 7–4 | 63.64% |
| Vaalkiem vs Jack-8 | 7–3 | 70.00% |
| Vaalkiem vs Anna | 5–4 | 55.56% |
| Vaalkiem vs Zafina | 2–4 | 33.33% |
| Vaalkiem vs Leroy | 0–6 | 0.00% |
| Vaalkiem vs Panda | 3–1 | 75.00% |
| Vaalkiem vs Shaheen | 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.