| IttyBittyVinny vs Reina | 11–3 | 78.57% |
| IttyBittyVinny vs Hwoarang | 8–4 | 66.67% |
| IttyBittyVinny vs Steve | 8–2 | 80.00% |
| IttyBittyVinny vs Lidia | 8–0 | 100.00% |
| IttyBittyVinny vs King | 4–2 | 66.67% |
| IttyBittyVinny vs Yoshimitsu | 4–1 | 80.00% |
| IttyBittyVinny vs Kazuya | 3–2 | 60.00% |
| IttyBittyVinny vs Lili | 5–0 | 100.00% |
| IttyBittyVinny vs Shaheen | 3–2 | 60.00% |
| IttyBittyVinny vs Jin | 3–1 | 75.00% |
| IttyBittyVinny vs Dragunov | 4–0 | 100.00% |
| IttyBittyVinny vs Bryan | 1–2 | 33.33% |
| IttyBittyVinny vs Asuka | 1–2 | 33.33% |
| IttyBittyVinny vs Leo | 2–1 | 66.67% |
| IttyBittyVinny vs Lars | 3–0 | 100.00% |
| IttyBittyVinny vs Alisa | 2–1 | 66.67% |
| IttyBittyVinny vs Leroy | 2–1 | 66.67% |
| IttyBittyVinny vs Jun | 2–1 | 66.67% |
| IttyBittyVinny vs Eddy | 2–1 | 66.67% |
| IttyBittyVinny vs Xiaoyu | 2–0 | 100.00% |
| IttyBittyVinny vs Kuma | 0–2 | 0.00% |
| IttyBittyVinny vs Azucena | 2–0 | 100.00% |
| IttyBittyVinny vs Raven | 0–2 | 0.00% |
| IttyBittyVinny vs Clive | 1–1 | 50.00% |
| IttyBittyVinny vs Paul | 0–1 | 0.00% |
| IttyBittyVinny vs Devil Jin | 0–1 | 0.00% |
| IttyBittyVinny vs Feng | 1–0 | 100.00% |
| IttyBittyVinny vs Claudio | 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.