| Alejandro Sans vs Jin | 34–44 | 43.59% |
| Alejandro Sans vs Kazuya | 36–39 | 48.00% |
| Alejandro Sans vs Reina | 29–34 | 46.03% |
| Alejandro Sans vs King | 28–33 | 45.90% |
| Alejandro Sans vs Hwoarang | 25–32 | 43.86% |
| Alejandro Sans vs Lili | 29–23 | 55.77% |
| Alejandro Sans vs Bryan | 18–28 | 39.13% |
| Alejandro Sans vs Yoshimitsu | 22–21 | 51.16% |
| Alejandro Sans vs Steve | 18–25 | 41.86% |
| Alejandro Sans vs Law | 20–18 | 52.63% |
| Alejandro Sans vs Azucena | 16–19 | 45.71% |
| Alejandro Sans vs Eddy | 14–21 | 40.00% |
| Alejandro Sans vs Dragunov | 13–21 | 38.24% |
| Alejandro Sans vs Paul | 17–14 | 54.84% |
| Alejandro Sans vs Lee | 16–14 | 53.33% |
| Alejandro Sans vs Asuka | 9–19 | 32.14% |
| Alejandro Sans vs Jun | 11–16 | 40.74% |
| Alejandro Sans vs Feng | 16–10 | 61.54% |
| Alejandro Sans vs Victor | 12–12 | 50.00% |
| Alejandro Sans vs Jack-8 | 7–12 | 36.84% |
| Alejandro Sans vs Lars | 8–11 | 42.11% |
| Alejandro Sans vs Lidia | 10–8 | 55.56% |
| Alejandro Sans vs Xiaoyu | 6–10 | 37.50% |
| Alejandro Sans vs Zafina | 7–8 | 46.67% |
| Alejandro Sans vs Kuma | 8–6 | 57.14% |
| Alejandro Sans vs Devil Jin | 7–6 | 53.85% |
| Alejandro Sans vs Nina | 7–6 | 53.85% |
| Alejandro Sans vs Leo | 6–6 | 50.00% |
| Alejandro Sans vs Alisa | 7–5 | 58.33% |
| Alejandro Sans vs Claudio | 6–4 | 60.00% |
| Alejandro Sans vs Heihachi | 3–6 | 33.33% |
| Alejandro Sans vs Leroy | 4–4 | 50.00% |
| Alejandro Sans vs Armor King | 3–4 | 42.86% |
| Alejandro Sans vs Fahkumram | 3–3 | 50.00% |
| Alejandro Sans vs Shaheen | 0–4 | 0.00% |
| Alejandro Sans vs Raven | 2–2 | 50.00% |
| Alejandro Sans vs Clive | 1–3 | 25.00% |
| Alejandro Sans vs Miary Zo | 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.