| Vastro vs Jin | 30–31 | 49.18% |
| Vastro vs Bryan | 25–23 | 52.08% |
| Vastro vs Kazuya | 27–19 | 58.70% |
| Vastro vs Dragunov | 16–18 | 47.06% |
| Vastro vs Devil Jin | 18–13 | 58.06% |
| Vastro vs Lili | 11–20 | 35.48% |
| Vastro vs Hwoarang | 15–14 | 51.72% |
| Vastro vs Yoshimitsu | 9–17 | 34.62% |
| Vastro vs Clive | 11–15 | 42.31% |
| Vastro vs Victor | 12–9 | 57.14% |
| Vastro vs Paul | 7–13 | 35.00% |
| Vastro vs King | 12–8 | 60.00% |
| Vastro vs Leo | 10–10 | 50.00% |
| Vastro vs Law | 12–7 | 63.16% |
| Vastro vs Reina | 14–5 | 73.68% |
| Vastro vs Steve | 7–11 | 38.89% |
| Vastro vs Lars | 7–9 | 43.75% |
| Vastro vs Leroy | 5–11 | 31.25% |
| Vastro vs Eddy | 10–5 | 66.67% |
| Vastro vs Jun | 8–6 | 57.14% |
| Vastro vs Asuka | 6–7 | 46.15% |
| Vastro vs Alisa | 6–7 | 46.15% |
| Vastro vs Jack-8 | 10–2 | 83.33% |
| Vastro vs Nina | 10–2 | 83.33% |
| Vastro vs Feng | 6–5 | 54.55% |
| Vastro vs Claudio | 4–7 | 36.36% |
| Vastro vs Lee | 2–8 | 20.00% |
| Vastro vs Azucena | 6–3 | 66.67% |
| Vastro vs Shaheen | 3–2 | 60.00% |
| Vastro vs Kuma | 1–3 | 25.00% |
| Vastro vs Raven | 3–1 | 75.00% |
| Vastro vs Xiaoyu | 2–1 | 66.67% |
| Vastro vs Heihachi | 2–1 | 66.67% |
| Vastro vs Lidia | 2–0 | 100.00% |
| Vastro vs Panda | 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.