| Leif vs Azucena | 10–5 | 66.67% |
| Leif vs Yoshimitsu | 7–5 | 58.33% |
| Leif vs Jin | 3–9 | 25.00% |
| Leif vs King | 9–1 | 90.00% |
| Leif vs Law | 6–3 | 66.67% |
| Leif vs Hwoarang | 7–2 | 77.78% |
| Leif vs Xiaoyu | 6–1 | 85.71% |
| Leif vs Kazuya | 2–5 | 28.57% |
| Leif vs Heihachi | 5–2 | 71.43% |
| Leif vs Lili | 5–1 | 83.33% |
| Leif vs Lars | 2–4 | 33.33% |
| Leif vs Lee | 5–1 | 83.33% |
| Leif vs Jun | 4–1 | 80.00% |
| Leif vs Reina | 5–0 | 100.00% |
| Leif vs Lidia | 3–2 | 60.00% |
| Leif vs Asuka | 4–0 | 100.00% |
| Leif vs Dragunov | 1–3 | 25.00% |
| Leif vs Eddy | 3–1 | 75.00% |
| Leif vs Bryan | 3–0 | 100.00% |
| Leif vs Feng | 1–2 | 33.33% |
| Leif vs Alisa | 1–2 | 33.33% |
| Leif vs Nina | 3–0 | 100.00% |
| Leif vs Kuma | 3–0 | 100.00% |
| Leif vs Paul | 0–2 | 0.00% |
| Leif vs Devil Jin | 2–0 | 100.00% |
| Leif vs Leo | 2–0 | 100.00% |
| Leif vs Zafina | 2–0 | 100.00% |
| Leif vs Clive | 1–1 | 50.00% |
| Leif vs Steve | 1–0 | 100.00% |
| Leif vs Jack-8 | 1–0 | 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.