| Santon vs Jin | 14–21 | 40.00% |
| Santon vs Steve | 16–15 | 51.61% |
| Santon vs Clive | 9–13 | 40.91% |
| Santon vs Bryan | 14–7 | 66.67% |
| Santon vs Law | 9–10 | 47.37% |
| Santon vs Hwoarang | 11–8 | 57.89% |
| Santon vs King | 6–10 | 37.50% |
| Santon vs Lili | 2–12 | 14.29% |
| Santon vs Lee | 5–8 | 38.46% |
| Santon vs Azucena | 5–7 | 41.67% |
| Santon vs Reina | 5–6 | 45.45% |
| Santon vs Kazuya | 1–9 | 10.00% |
| Santon vs Heihachi | 2–8 | 20.00% |
| Santon vs Anna | 3–6 | 33.33% |
| Santon vs Paul | 3–5 | 37.50% |
| Santon vs Dragunov | 3–5 | 37.50% |
| Santon vs Lars | 7–1 | 87.50% |
| Santon vs Eddy | 3–5 | 37.50% |
| Santon vs Devil Jin | 1–6 | 14.29% |
| Santon vs Nina | 4–3 | 57.14% |
| Santon vs Fahkumram | 2–5 | 28.57% |
| Santon vs Yoshimitsu | 4–2 | 66.67% |
| Santon vs Xiaoyu | 2–4 | 33.33% |
| Santon vs Armor King | 1–5 | 16.67% |
| Santon vs Asuka | 3–2 | 60.00% |
| Santon vs Leroy | 1–4 | 20.00% |
| Santon vs Claudio | 3–1 | 75.00% |
| Santon vs Victor | 0–4 | 0.00% |
| Santon vs Jack-8 | 1–2 | 33.33% |
| Santon vs Leo | 3–0 | 100.00% |
| Santon vs Feng | 0–2 | 0.00% |
| Santon vs Kuma | 2–0 | 100.00% |
| Santon vs Jun | 1–1 | 50.00% |
| Santon vs Lidia | 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.