| Gionni vs King | 10–10 | 50.00% |
| Gionni vs Azucena | 1–8 | 11.11% |
| Gionni vs Steve | 6–2 | 75.00% |
| Gionni vs Jin | 2–5 | 28.57% |
| Gionni vs Bryan | 2–3 | 40.00% |
| Gionni vs Devil Jin | 4–1 | 80.00% |
| Gionni vs Victor | 3–2 | 60.00% |
| Gionni vs Law | 3–1 | 75.00% |
| Gionni vs Heihachi | 4–0 | 100.00% |
| Gionni vs Clive | 1–3 | 25.00% |
| Gionni vs Leo | 1–2 | 33.33% |
| Gionni vs Lars | 2–1 | 66.67% |
| Gionni vs Claudio | 1–2 | 33.33% |
| Gionni vs Reina | 2–1 | 66.67% |
| Gionni vs Eddy | 2–1 | 66.67% |
| Gionni vs Lidia | 1–2 | 33.33% |
| Gionni vs Yoshimitsu | 2–0 | 100.00% |
| Gionni vs Dragunov | 1–1 | 50.00% |
| Gionni vs Alisa | 2–0 | 100.00% |
| Gionni vs Jun | 2–0 | 100.00% |
| Gionni vs Kazuya | 0–1 | 0.00% |
| Gionni vs Lili | 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.