| Alajas 1981 vs King | 47–89 | 34.56% |
| Alajas 1981 vs Jin | 55–79 | 41.04% |
| Alajas 1981 vs Law | 42–77 | 35.29% |
| Alajas 1981 vs Kazuya | 41–73 | 35.96% |
| Alajas 1981 vs Hwoarang | 35–59 | 37.23% |
| Alajas 1981 vs Steve | 33–53 | 38.37% |
| Alajas 1981 vs Bryan | 28–50 | 35.90% |
| Alajas 1981 vs Reina | 23–40 | 36.51% |
| Alajas 1981 vs Dragunov | 21–32 | 39.62% |
| Alajas 1981 vs Clive | 21–32 | 39.62% |
| Alajas 1981 vs Heihachi | 20–31 | 39.22% |
| Alajas 1981 vs Armor King | 18–32 | 36.00% |
| Alajas 1981 vs Eddy | 12–33 | 26.67% |
| Alajas 1981 vs Jun | 20–23 | 46.51% |
| Alajas 1981 vs Paul | 15–27 | 35.71% |
| Alajas 1981 vs Yoshimitsu | 13–29 | 30.95% |
| Alajas 1981 vs Lars | 17–24 | 41.46% |
| Alajas 1981 vs Victor | 17–24 | 41.46% |
| Alajas 1981 vs Fahkumram | 15–25 | 37.50% |
| Alajas 1981 vs Lili | 17–21 | 44.74% |
| Alajas 1981 vs Nina | 10–27 | 27.03% |
| Alajas 1981 vs Xiaoyu | 14–20 | 41.18% |
| Alajas 1981 vs Asuka | 13–20 | 39.39% |
| Alajas 1981 vs Devil Jin | 13–18 | 41.94% |
| Alajas 1981 vs Jack-8 | 11–16 | 40.74% |
| Alajas 1981 vs Azucena | 8–18 | 30.77% |
| Alajas 1981 vs Lee | 6–19 | 24.00% |
| Alajas 1981 vs Lidia | 9–15 | 37.50% |
| Alajas 1981 vs Leroy | 9–9 | 50.00% |
| Alajas 1981 vs Feng | 9–7 | 56.25% |
| Alajas 1981 vs Alisa | 5–9 | 35.71% |
| Alajas 1981 vs Shaheen | 8–6 | 57.14% |
| Alajas 1981 vs Anna | 4–9 | 30.77% |
| Alajas 1981 vs Claudio | 6–6 | 50.00% |
| Alajas 1981 vs Kuma | 3–9 | 25.00% |
| Alajas 1981 vs Raven | 5–7 | 41.67% |
| Alajas 1981 vs Miary Zo | 7–2 | 77.78% |
| Alajas 1981 vs Panda | 0–5 | 0.00% |
| Alajas 1981 vs Leo | 0–4 | 0.00% |
| Alajas 1981 vs Zafina | 1–3 | 25.00% |
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.