| Alastor99 vs Law | 10–7 | 58.82% |
| Alastor99 vs Lili | 4–13 | 23.53% |
| Alastor99 vs Claudio | 7–9 | 43.75% |
| Alastor99 vs Kazuya | 6–9 | 40.00% |
| Alastor99 vs Steve | 8–7 | 53.33% |
| Alastor99 vs Jin | 9–5 | 64.29% |
| Alastor99 vs Bryan | 7–7 | 50.00% |
| Alastor99 vs King | 9–4 | 69.23% |
| Alastor99 vs Hwoarang | 6–7 | 46.15% |
| Alastor99 vs Eddy | 5–8 | 38.46% |
| Alastor99 vs Reina | 1–11 | 8.33% |
| Alastor99 vs Yoshimitsu | 4–6 | 40.00% |
| Alastor99 vs Feng | 2–7 | 22.22% |
| Alastor99 vs Xiaoyu | 2–6 | 25.00% |
| Alastor99 vs Azucena | 3–5 | 37.50% |
| Alastor99 vs Victor | 5–3 | 62.50% |
| Alastor99 vs Paul | 0–7 | 0.00% |
| Alastor99 vs Kuma | 4–3 | 57.14% |
| Alastor99 vs Nina | 2–4 | 33.33% |
| Alastor99 vs Jun | 2–4 | 33.33% |
| Alastor99 vs Raven | 2–4 | 33.33% |
| Alastor99 vs Dragunov | 2–3 | 40.00% |
| Alastor99 vs Lars | 3–2 | 60.00% |
| Alastor99 vs Alisa | 3–1 | 75.00% |
| Alastor99 vs Lidia | 0–4 | 0.00% |
| Alastor99 vs Jack-8 | 3–0 | 100.00% |
| Alastor99 vs Leo | 2–1 | 66.67% |
| Alastor99 vs Lee | 2–0 | 100.00% |
| Alastor99 vs Leroy | 2–0 | 100.00% |
| Alastor99 vs Devil Jin | 0–1 | 0.00% |
| Alastor99 vs Zafina | 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.