| Vello vs Jin | 15–6 | 71.43% |
| Vello vs Steve | 12–6 | 66.67% |
| Vello vs Lidia | 6–9 | 40.00% |
| Vello vs King | 9–5 | 64.29% |
| Vello vs Bryan | 6–5 | 54.55% |
| Vello vs Kazuya | 5–6 | 45.45% |
| Vello vs Reina | 6–5 | 54.55% |
| Vello vs Raven | 6–4 | 60.00% |
| Vello vs Dragunov | 5–4 | 55.56% |
| Vello vs Paul | 5–3 | 62.50% |
| Vello vs Lars | 4–4 | 50.00% |
| Vello vs Alisa | 1–7 | 12.50% |
| Vello vs Azucena | 5–2 | 71.43% |
| Vello vs Nina | 6–1 | 85.71% |
| Vello vs Hwoarang | 3–3 | 50.00% |
| Vello vs Victor | 2–4 | 33.33% |
| Vello vs Leo | 3–2 | 60.00% |
| Vello vs Lee | 3–2 | 60.00% |
| Vello vs Feng | 1–3 | 25.00% |
| Vello vs Eddy | 1–3 | 25.00% |
| Vello vs Jack-8 | 3–0 | 100.00% |
| Vello vs Leroy | 3–0 | 100.00% |
| Vello vs Jun | 2–1 | 66.67% |
| Vello vs Claudio | 0–2 | 0.00% |
| Vello vs Asuka | 2–0 | 100.00% |
| Vello vs Kuma | 1–1 | 50.00% |
| Vello vs Yoshimitsu | 0–1 | 0.00% |
| Vello vs Lili | 1–0 | 100.00% |
| Vello vs Shaheen | 1–0 | 100.00% |
| Vello vs Law | 1–0 | 100.00% |
| Vello vs Devil Jin | 1–0 | 100.00% |
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.