| Leonheart vs Kazuya | 98–148 | 39.84% |
| Leonheart vs King | 82–117 | 41.21% |
| Leonheart vs Jin | 93–83 | 52.84% |
| Leonheart vs Bryan | 80–82 | 49.38% |
| Leonheart vs Steve | 65–68 | 48.87% |
| Leonheart vs Heihachi | 45–84 | 34.88% |
| Leonheart vs Law | 47–76 | 38.21% |
| Leonheart vs Dragunov | 38–67 | 36.19% |
| Leonheart vs Paul | 31–52 | 37.35% |
| Leonheart vs Hwoarang | 26–45 | 36.62% |
| Leonheart vs Yoshimitsu | 19–33 | 36.54% |
| Leonheart vs Alisa | 14–38 | 26.92% |
| Leonheart vs Clive | 21–31 | 40.38% |
| Leonheart vs Anna | 17–34 | 33.33% |
| Leonheart vs Victor | 14–36 | 28.00% |
| Leonheart vs Reina | 14–31 | 31.11% |
| Leonheart vs Eddy | 24–21 | 53.33% |
| Leonheart vs Lars | 17–25 | 40.48% |
| Leonheart vs Nina | 21–21 | 50.00% |
| Leonheart vs Lidia | 24–18 | 57.14% |
| Leonheart vs Lili | 19–22 | 46.34% |
| Leonheart vs Azucena | 11–28 | 28.21% |
| Leonheart vs Claudio | 11–27 | 28.95% |
| Leonheart vs Jun | 22–16 | 57.89% |
| Leonheart vs Armor King | 15–21 | 41.67% |
| Leonheart vs Devil Jin | 8–27 | 22.86% |
| Leonheart vs Lee | 12–23 | 34.29% |
| Leonheart vs Asuka | 14–16 | 46.67% |
| Leonheart vs Fahkumram | 10–17 | 37.04% |
| Leonheart vs Jack-8 | 2–18 | 10.00% |
| Leonheart vs Leroy | 8–10 | 44.44% |
| Leonheart vs Xiaoyu | 7–10 | 41.18% |
| Leonheart vs Raven | 7–10 | 41.18% |
| Leonheart vs Leo | 7–7 | 50.00% |
| Leonheart vs Shaheen | 9–5 | 64.29% |
| Leonheart vs Kuma | 4–7 | 36.36% |
| Leonheart vs Feng | 2–8 | 20.00% |
| Leonheart vs Zafina | 0–2 | 0.00% |
| Leonheart vs Panda | 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.