| SSGSS Mario vs King | 12–14 | 46.15% |
| SSGSS Mario vs Hwoarang | 11–14 | 44.00% |
| SSGSS Mario vs Kazuya | 14–7 | 66.67% |
| SSGSS Mario vs Jin | 15–3 | 83.33% |
| SSGSS Mario vs Steve | 9–9 | 50.00% |
| SSGSS Mario vs Asuka | 9–7 | 56.25% |
| SSGSS Mario vs Reina | 8–7 | 53.33% |
| SSGSS Mario vs Jun | 9–3 | 75.00% |
| SSGSS Mario vs Bryan | 6–5 | 54.55% |
| SSGSS Mario vs Lars | 8–3 | 72.73% |
| SSGSS Mario vs Nina | 8–2 | 80.00% |
| SSGSS Mario vs Law | 2–7 | 22.22% |
| SSGSS Mario vs Lili | 7–2 | 77.78% |
| SSGSS Mario vs Azucena | 7–2 | 77.78% |
| SSGSS Mario vs Eddy | 3–6 | 33.33% |
| SSGSS Mario vs Yoshimitsu | 3–5 | 37.50% |
| SSGSS Mario vs Devil Jin | 5–2 | 71.43% |
| SSGSS Mario vs Dragunov | 2–5 | 28.57% |
| SSGSS Mario vs Paul | 1–5 | 16.67% |
| SSGSS Mario vs Jack-8 | 4–1 | 80.00% |
| SSGSS Mario vs Leo | 3–2 | 60.00% |
| SSGSS Mario vs Lee | 2–3 | 40.00% |
| SSGSS Mario vs Victor | 5–0 | 100.00% |
| SSGSS Mario vs Feng | 1–3 | 25.00% |
| SSGSS Mario vs Alisa | 2–2 | 50.00% |
| SSGSS Mario vs Leroy | 4–0 | 100.00% |
| SSGSS Mario vs Lidia | 0–4 | 0.00% |
| SSGSS Mario vs Xiaoyu | 1–2 | 33.33% |
| SSGSS Mario vs Kuma | 1–2 | 33.33% |
| SSGSS Mario vs Raven | 1–2 | 33.33% |
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.