| Santo vs Steve | 25–29 | 46.30% |
| Santo vs Hwoarang | 29–23 | 55.77% |
| Santo vs Jin | 28–18 | 60.87% |
| Santo vs King | 18–27 | 40.00% |
| Santo vs Kazuya | 19–24 | 44.19% |
| Santo vs Law | 19–21 | 47.50% |
| Santo vs Dragunov | 14–19 | 42.42% |
| Santo vs Eddy | 13–18 | 41.94% |
| Santo vs Heihachi | 14–17 | 45.16% |
| Santo vs Reina | 12–17 | 41.38% |
| Santo vs Bryan | 12–16 | 42.86% |
| Santo vs Yoshimitsu | 15–12 | 55.56% |
| Santo vs Alisa | 11–13 | 45.83% |
| Santo vs Lars | 9–14 | 39.13% |
| Santo vs Nina | 12–9 | 57.14% |
| Santo vs Azucena | 12–8 | 60.00% |
| Santo vs Armor King | 5–15 | 25.00% |
| Santo vs Lili | 9–8 | 52.94% |
| Santo vs Clive | 6–11 | 35.29% |
| Santo vs Fahkumram | 7–10 | 41.18% |
| Santo vs Lee | 7–8 | 46.67% |
| Santo vs Lidia | 10–5 | 66.67% |
| Santo vs Panda | 5–9 | 35.71% |
| Santo vs Jack-8 | 8–5 | 61.54% |
| Santo vs Asuka | 7–6 | 53.85% |
| Santo vs Victor | 8–5 | 61.54% |
| Santo vs Xiaoyu | 4–8 | 33.33% |
| Santo vs Devil Jin | 8–4 | 66.67% |
| Santo vs Leo | 6–6 | 50.00% |
| Santo vs Jun | 2–10 | 16.67% |
| Santo vs Raven | 3–8 | 27.27% |
| Santo vs Claudio | 5–5 | 50.00% |
| Santo vs Leroy | 5–5 | 50.00% |
| Santo vs Anna | 5–5 | 50.00% |
| Santo vs Paul | 4–5 | 44.44% |
| Santo vs Miary Zo | 5–3 | 62.50% |
| Santo vs Feng | 2–1 | 66.67% |
| Santo vs Shaheen | 2–1 | 66.67% |
| Santo vs Zafina | 1–2 | 33.33% |
| Santo vs Kuma | 0–2 | 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.