| Santamonica vs Reina | 53–49 | 51.96% |
| Santamonica vs Kazuya | 39–60 | 39.39% |
| Santamonica vs Dragunov | 40–45 | 47.06% |
| Santamonica vs Lili | 34–50 | 40.48% |
| Santamonica vs Paul | 31–47 | 39.74% |
| Santamonica vs Jun | 39–38 | 50.65% |
| Santamonica vs King | 31–42 | 42.47% |
| Santamonica vs Lidia | 33–31 | 51.56% |
| Santamonica vs Law | 25–38 | 39.68% |
| Santamonica vs Bryan | 29–34 | 46.03% |
| Santamonica vs Hwoarang | 19–38 | 33.33% |
| Santamonica vs Yoshimitsu | 20–35 | 36.36% |
| Santamonica vs Asuka | 25–28 | 47.17% |
| Santamonica vs Jin | 22–26 | 45.83% |
| Santamonica vs Steve | 13–34 | 27.66% |
| Santamonica vs Victor | 24–23 | 51.06% |
| Santamonica vs Azucena | 22–19 | 53.66% |
| Santamonica vs Nina | 11–24 | 31.43% |
| Santamonica vs Feng | 14–19 | 42.42% |
| Santamonica vs Xiaoyu | 11–21 | 34.38% |
| Santamonica vs Eddy | 8–22 | 26.67% |
| Santamonica vs Devil Jin | 6–21 | 22.22% |
| Santamonica vs Lars | 12–15 | 44.44% |
| Santamonica vs Alisa | 9–18 | 33.33% |
| Santamonica vs Lee | 6–12 | 33.33% |
| Santamonica vs Kuma | 5–12 | 29.41% |
| Santamonica vs Jack-8 | 4–12 | 25.00% |
| Santamonica vs Leo | 5–10 | 33.33% |
| Santamonica vs Heihachi | 5–10 | 33.33% |
| Santamonica vs Claudio | 6–8 | 42.86% |
| Santamonica vs Shaheen | 2–8 | 20.00% |
| Santamonica vs Armor King | 2–7 | 22.22% |
| Santamonica vs Zafina | 3–5 | 37.50% |
| Santamonica vs Leroy | 3–5 | 37.50% |
| Santamonica vs Raven | 2–5 | 28.57% |
| Santamonica vs Panda | 2–2 | 50.00% |
| Santamonica vs Clive | 0–2 | 0.00% |
| Santamonica vs Anna | 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.