| Santana vs Heihachi | 116–117 | 49.79% |
| Santana vs Kazuya | 107–107 | 50.00% |
| Santana vs Jin | 56–105 | 34.78% |
| Santana vs Bryan | 57–94 | 37.75% |
| Santana vs King | 72–63 | 53.33% |
| Santana vs Hwoarang | 46–72 | 38.98% |
| Santana vs Dragunov | 59–54 | 52.21% |
| Santana vs Paul | 48–54 | 47.06% |
| Santana vs Devil Jin | 51–50 | 50.50% |
| Santana vs Reina | 52–44 | 54.17% |
| Santana vs Asuka | 42–52 | 44.68% |
| Santana vs Lee | 56–38 | 59.57% |
| Santana vs Steve | 36–51 | 41.38% |
| Santana vs Alisa | 45–39 | 53.57% |
| Santana vs Lili | 34–49 | 40.96% |
| Santana vs Law | 38–27 | 58.46% |
| Santana vs Jun | 44–19 | 69.84% |
| Santana vs Feng | 19–39 | 32.76% |
| Santana vs Azucena | 29–23 | 55.77% |
| Santana vs Nina | 19–32 | 37.25% |
| Santana vs Yoshimitsu | 23–26 | 46.94% |
| Santana vs Leroy | 16–31 | 34.04% |
| Santana vs Lidia | 19–25 | 43.18% |
| Santana vs Victor | 15–28 | 34.88% |
| Santana vs Leo | 19–17 | 52.78% |
| Santana vs Lars | 16–20 | 44.44% |
| Santana vs Claudio | 14–12 | 53.85% |
| Santana vs Kuma | 8–11 | 42.11% |
| Santana vs Jack-8 | 8–8 | 50.00% |
| Santana vs Xiaoyu | 8–7 | 53.33% |
| Santana vs Raven | 7–8 | 46.67% |
| Santana vs Eddy | 5–8 | 38.46% |
| Santana vs Zafina | 1–8 | 11.11% |
| Santana vs Shaheen | 1–3 | 25.00% |
| Santana vs Panda | 0–1 | 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.