| Alex de Niterói vs King | 32–35 | 47.76% |
| Alex de Niterói vs Bryan | 38–24 | 61.29% |
| Alex de Niterói vs Jin | 29–30 | 49.15% |
| Alex de Niterói vs Hwoarang | 40–18 | 68.97% |
| Alex de Niterói vs Lili | 25–28 | 47.17% |
| Alex de Niterói vs Kazuya | 36–15 | 70.59% |
| Alex de Niterói vs Dragunov | 30–12 | 71.43% |
| Alex de Niterói vs Steve | 20–15 | 57.14% |
| Alex de Niterói vs Reina | 21–13 | 61.76% |
| Alex de Niterói vs Feng | 17–16 | 51.52% |
| Alex de Niterói vs Nina | 17–14 | 54.84% |
| Alex de Niterói vs Devil Jin | 13–16 | 44.83% |
| Alex de Niterói vs Eddy | 18–6 | 75.00% |
| Alex de Niterói vs Heihachi | 18–6 | 75.00% |
| Alex de Niterói vs Law | 6–17 | 26.09% |
| Alex de Niterói vs Xiaoyu | 11–10 | 52.38% |
| Alex de Niterói vs Asuka | 8–13 | 38.10% |
| Alex de Niterói vs Miary Zo | 9–8 | 52.94% |
| Alex de Niterói vs Paul | 10–6 | 62.50% |
| Alex de Niterói vs Leo | 10–6 | 62.50% |
| Alex de Niterói vs Lee | 10–6 | 62.50% |
| Alex de Niterói vs Lidia | 12–4 | 75.00% |
| Alex de Niterói vs Kuma | 5–10 | 33.33% |
| Alex de Niterói vs Armor King | 11–4 | 73.33% |
| Alex de Niterói vs Lars | 6–8 | 42.86% |
| Alex de Niterói vs Claudio | 9–5 | 64.29% |
| Alex de Niterói vs Victor | 7–7 | 50.00% |
| Alex de Niterói vs Jack-8 | 7–6 | 53.85% |
| Alex de Niterói vs Alisa | 9–3 | 75.00% |
| Alex de Niterói vs Zafina | 5–7 | 41.67% |
| Alex de Niterói vs Jun | 8–4 | 66.67% |
| Alex de Niterói vs Azucena | 4–6 | 40.00% |
| Alex de Niterói vs Anna | 6–4 | 60.00% |
| Alex de Niterói vs Yoshimitsu | 5–4 | 55.56% |
| Alex de Niterói vs Fahkumram | 4–1 | 80.00% |
| Alex de Niterói vs Leroy | 0–4 | 0.00% |
| Alex de Niterói vs Clive | 2–0 | 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.