| Santo vs King | 1–13 | 7.14% |
| Santo vs Steve | 5–8 | 38.46% |
| Santo vs Lili | 4–9 | 30.77% |
| Santo vs Law | 4–8 | 33.33% |
| Santo vs Yoshimitsu | 4–6 | 40.00% |
| Santo vs Jin | 2–8 | 20.00% |
| Santo vs Nina | 3–7 | 30.00% |
| Santo vs Azucena | 4–6 | 40.00% |
| Santo vs Armor King | 4–5 | 44.44% |
| Santo vs Hwoarang | 0–8 | 0.00% |
| Santo vs Reina | 5–3 | 62.50% |
| Santo vs Lee | 5–1 | 83.33% |
| Santo vs Heihachi | 2–4 | 33.33% |
| Santo vs Victor | 3–1 | 75.00% |
| Santo vs Eddy | 3–1 | 75.00% |
| Santo vs Bryan | 1–2 | 33.33% |
| Santo vs Kazuya | 1–2 | 33.33% |
| Santo vs Feng | 1–2 | 33.33% |
| Santo vs Dragunov | 0–3 | 0.00% |
| Santo vs Shaheen | 2–1 | 66.67% |
| Santo vs Xiaoyu | 0–2 | 0.00% |
| Santo vs Asuka | 2–0 | 100.00% |
| Santo vs Alisa | 0–2 | 0.00% |
| Santo vs Clive | 1–1 | 50.00% |
| Santo vs Fahkumram | 0–2 | 0.00% |
| Santo vs Paul | 1–0 | 100.00% |
| Santo vs Jack-8 | 0–1 | 0.00% |
| Santo vs Devil Jin | 1–0 | 100.00% |
| Santo vs Zafina | 0–1 | 0.00% |
| Santo vs Leroy | 0–1 | 0.00% |
| Santo vs Raven | 0–1 | 0.00% |
| Santo 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.