| LeonHeart vs King | 22–42 | 34.38% |
| LeonHeart vs Jin | 17–26 | 39.53% |
| LeonHeart vs Steve | 17–26 | 39.53% |
| LeonHeart vs Reina | 21–20 | 51.22% |
| LeonHeart vs Hwoarang | 14–23 | 37.84% |
| LeonHeart vs Kazuya | 14–22 | 38.89% |
| LeonHeart vs Law | 17–17 | 50.00% |
| LeonHeart vs Dragunov | 18–16 | 52.94% |
| LeonHeart vs Armor King | 9–25 | 26.47% |
| LeonHeart vs Miary Zo | 8–26 | 23.53% |
| LeonHeart vs Azucena | 9–20 | 31.03% |
| LeonHeart vs Asuka | 12–16 | 42.86% |
| LeonHeart vs Bryan | 12–13 | 48.00% |
| LeonHeart vs Heihachi | 9–15 | 37.50% |
| LeonHeart vs Fahkumram | 14–10 | 58.33% |
| LeonHeart vs Eddy | 11–12 | 47.83% |
| LeonHeart vs Devil Jin | 6–14 | 30.00% |
| LeonHeart vs Clive | 6–14 | 30.00% |
| LeonHeart vs Jun | 8–11 | 42.11% |
| LeonHeart vs Yoshimitsu | 8–10 | 44.44% |
| LeonHeart vs Nina | 7–10 | 41.18% |
| LeonHeart vs Lee | 7–9 | 43.75% |
| LeonHeart vs Lidia | 6–9 | 40.00% |
| LeonHeart vs Lars | 3–11 | 21.43% |
| LeonHeart vs Victor | 8–6 | 57.14% |
| LeonHeart vs Anna | 4–10 | 28.57% |
| LeonHeart vs Lili | 4–9 | 30.77% |
| LeonHeart vs Paul | 5–6 | 45.45% |
| LeonHeart vs Jack-8 | 2–9 | 18.18% |
| LeonHeart vs Leroy | 3–7 | 30.00% |
| LeonHeart vs Raven | 8–2 | 80.00% |
| LeonHeart vs Leo | 3–6 | 33.33% |
| LeonHeart vs Xiaoyu | 0–8 | 0.00% |
| LeonHeart vs Feng | 2–6 | 25.00% |
| LeonHeart vs Alisa | 4–3 | 57.14% |
| LeonHeart vs Shaheen | 3–4 | 42.86% |
| LeonHeart vs Kuma | 2–5 | 28.57% |
| LeonHeart vs Claudio | 2–3 | 40.00% |
| LeonHeart vs Zafina | 1–4 | 20.00% |
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.