| John Lionheart vs Kazuya | 38–32 | 54.29% |
| John Lionheart vs Jin | 40–27 | 59.70% |
| John Lionheart vs Bryan | 39–14 | 73.58% |
| John Lionheart vs King | 29–22 | 56.86% |
| John Lionheart vs Armor King | 27–17 | 61.36% |
| John Lionheart vs Hwoarang | 31–12 | 72.09% |
| John Lionheart vs Miary Zo | 24–10 | 70.59% |
| John Lionheart vs Dragunov | 21–10 | 67.74% |
| John Lionheart vs Jun | 17–13 | 56.67% |
| John Lionheart vs Law | 16–13 | 55.17% |
| John Lionheart vs Lidia | 17–12 | 58.62% |
| John Lionheart vs Yoshimitsu | 15–12 | 55.56% |
| John Lionheart vs Paul | 17–9 | 65.38% |
| John Lionheart vs Lili | 19–7 | 73.08% |
| John Lionheart vs Victor | 21–4 | 84.00% |
| John Lionheart vs Alisa | 13–11 | 54.17% |
| John Lionheart vs Reina | 19–5 | 79.17% |
| John Lionheart vs Devil Jin | 15–7 | 68.18% |
| John Lionheart vs Lars | 16–6 | 72.73% |
| John Lionheart vs Azucena | 12–10 | 54.55% |
| John Lionheart vs Eddy | 9–12 | 42.86% |
| John Lionheart vs Steve | 13–5 | 72.22% |
| John Lionheart vs Asuka | 11–7 | 61.11% |
| John Lionheart vs Shaheen | 11–7 | 61.11% |
| John Lionheart vs Nina | 13–5 | 72.22% |
| John Lionheart vs Clive | 11–7 | 61.11% |
| John Lionheart vs Lee | 12–5 | 70.59% |
| John Lionheart vs Claudio | 9–7 | 56.25% |
| John Lionheart vs Fahkumram | 10–5 | 66.67% |
| John Lionheart vs Heihachi | 10–4 | 71.43% |
| John Lionheart vs Jack-8 | 6–7 | 46.15% |
| John Lionheart vs Leroy | 9–4 | 69.23% |
| John Lionheart vs Raven | 7–5 | 58.33% |
| John Lionheart vs Leo | 8–3 | 72.73% |
| John Lionheart vs Anna | 8–3 | 72.73% |
| John Lionheart vs Feng | 8–2 | 80.00% |
| John Lionheart vs Panda | 6–3 | 66.67% |
| John Lionheart vs Zafina | 3–6 | 33.33% |
| John Lionheart vs Xiaoyu | 8–0 | 100.00% |
| John Lionheart vs Kuma | 4–4 | 50.00% |
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.