| Leiko vs Eddy | 4–11 | 26.67% |
| Leiko vs Law | 6–7 | 46.15% |
| Leiko vs Jin | 9–4 | 69.23% |
| Leiko vs Bryan | 6–6 | 50.00% |
| Leiko vs Lili | 8–1 | 88.89% |
| Leiko vs Kazuya | 3–5 | 37.50% |
| Leiko vs Dragunov | 3–5 | 37.50% |
| Leiko vs Alisa | 4–4 | 50.00% |
| Leiko vs Lidia | 4–4 | 50.00% |
| Leiko vs Xiaoyu | 5–2 | 71.43% |
| Leiko vs Steve | 5–2 | 71.43% |
| Leiko vs King | 6–0 | 100.00% |
| Leiko vs Reina | 3–3 | 50.00% |
| Leiko vs Armor King | 4–2 | 66.67% |
| Leiko vs Jun | 1–4 | 20.00% |
| Leiko vs Azucena | 3–1 | 75.00% |
| Leiko vs Miary Zo | 2–2 | 50.00% |
| Leiko vs Lars | 2–1 | 66.67% |
| Leiko vs Leroy | 3–0 | 100.00% |
| Leiko vs Heihachi | 2–1 | 66.67% |
| Leiko vs Paul | 2–0 | 100.00% |
| Leiko vs Yoshimitsu | 0–2 | 0.00% |
| Leiko vs Devil Jin | 2–0 | 100.00% |
| Leiko vs Nina | 0–2 | 0.00% |
| Leiko vs Zafina | 2–0 | 100.00% |
| Leiko vs Victor | 0–2 | 0.00% |
| Leiko vs Hwoarang | 0–1 | 0.00% |
| Leiko vs Asuka | 1–0 | 100.00% |
| Leiko 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.