| Santonio vs Jin | 37–18 | 67.27% |
| Santonio vs Steve | 32–13 | 71.11% |
| Santonio vs Paul | 21–13 | 61.76% |
| Santonio vs Reina | 22–12 | 64.71% |
| Santonio vs Kazuya | 21–12 | 63.64% |
| Santonio vs Heihachi | 13–15 | 46.43% |
| Santonio vs Lili | 15–12 | 55.56% |
| Santonio vs King | 9–17 | 34.62% |
| Santonio vs Yoshimitsu | 10–15 | 40.00% |
| Santonio vs Clive | 15–10 | 60.00% |
| Santonio vs Dragunov | 13–9 | 59.09% |
| Santonio vs Lee | 9–13 | 40.91% |
| Santonio vs Victor | 13–8 | 61.90% |
| Santonio vs Law | 15–2 | 88.24% |
| Santonio vs Bryan | 12–5 | 70.59% |
| Santonio vs Lars | 6–11 | 35.29% |
| Santonio vs Devil Jin | 11–3 | 78.57% |
| Santonio vs Feng | 9–5 | 64.29% |
| Santonio vs Lidia | 10–4 | 71.43% |
| Santonio vs Alisa | 9–4 | 69.23% |
| Santonio vs Jun | 8–5 | 61.54% |
| Santonio vs Eddy | 12–1 | 92.31% |
| Santonio vs Xiaoyu | 7–5 | 58.33% |
| Santonio vs Jack-8 | 4–6 | 40.00% |
| Santonio vs Azucena | 7–2 | 77.78% |
| Santonio vs Hwoarang | 3–5 | 37.50% |
| Santonio vs Claudio | 7–1 | 87.50% |
| Santonio vs Kuma | 4–1 | 80.00% |
| Santonio vs Leroy | 2–3 | 40.00% |
| Santonio vs Asuka | 4–0 | 100.00% |
| Santonio vs Shaheen | 4–0 | 100.00% |
| Santonio vs Raven | 4–0 | 100.00% |
| Santonio vs Fahkumram | 3–0 | 100.00% |
| Santonio vs Leo | 0–2 | 0.00% |
| Santonio vs Nina | 0–2 | 0.00% |
| Santonio vs Anna | 2–0 | 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.