| Alejandro vs Reina | 20–12 | 62.50% |
| Alejandro vs King | 11–18 | 37.93% |
| Alejandro vs Jin | 11–18 | 37.93% |
| Alejandro vs Eddy | 6–18 | 25.00% |
| Alejandro vs Hwoarang | 10–9 | 52.63% |
| Alejandro vs Kazuya | 12–7 | 63.16% |
| Alejandro vs Lili | 11–7 | 61.11% |
| Alejandro vs Law | 2–13 | 13.33% |
| Alejandro vs Devil Jin | 5–9 | 35.71% |
| Alejandro vs Paul | 4–9 | 30.77% |
| Alejandro vs Dragunov | 3–10 | 23.08% |
| Alejandro vs Steve | 5–7 | 41.67% |
| Alejandro vs Lars | 4–8 | 33.33% |
| Alejandro vs Azucena | 6–6 | 50.00% |
| Alejandro vs Yoshimitsu | 6–5 | 54.55% |
| Alejandro vs Bryan | 6–5 | 54.55% |
| Alejandro vs Leo | 4–5 | 44.44% |
| Alejandro vs Victor | 5–4 | 55.56% |
| Alejandro vs Jun | 3–5 | 37.50% |
| Alejandro vs Jack-8 | 3–4 | 42.86% |
| Alejandro vs Claudio | 5–1 | 83.33% |
| Alejandro vs Shaheen | 4–2 | 66.67% |
| Alejandro vs Lee | 2–4 | 33.33% |
| Alejandro vs Panda | 2–4 | 33.33% |
| Alejandro vs Xiaoyu | 1–4 | 20.00% |
| Alejandro vs Asuka | 4–1 | 80.00% |
| Alejandro vs Alisa | 2–3 | 40.00% |
| Alejandro vs Nina | 2–3 | 40.00% |
| Alejandro vs Leroy | 2–3 | 40.00% |
| Alejandro vs Feng | 1–3 | 25.00% |
| Alejandro vs Zafina | 1–2 | 33.33% |
| Alejandro vs Raven | 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.