| John Kazuya vs King | 179–231 | 43.66% |
| John Kazuya vs Kazuya | 179–215 | 45.43% |
| John Kazuya vs Jin | 129–231 | 35.83% |
| John Kazuya vs Steve | 118–201 | 36.99% |
| John Kazuya vs Bryan | 142–170 | 45.51% |
| John Kazuya vs Reina | 151–151 | 50.00% |
| John Kazuya vs Hwoarang | 135–156 | 46.39% |
| John Kazuya vs Law | 114–146 | 43.85% |
| John Kazuya vs Dragunov | 98–109 | 47.34% |
| John Kazuya vs Paul | 88–117 | 42.93% |
| John Kazuya vs Azucena | 88–110 | 44.44% |
| John Kazuya vs Heihachi | 94–92 | 50.54% |
| John Kazuya vs Yoshimitsu | 82–102 | 44.57% |
| John Kazuya vs Lili | 77–97 | 44.25% |
| John Kazuya vs Jun | 82–92 | 47.13% |
| John Kazuya vs Lars | 79–85 | 48.17% |
| John Kazuya vs Asuka | 70–91 | 43.48% |
| John Kazuya vs Eddy | 81–80 | 50.31% |
| John Kazuya vs Xiaoyu | 87–56 | 60.84% |
| John Kazuya vs Lee | 64–79 | 44.76% |
| John Kazuya vs Feng | 62–66 | 48.44% |
| John Kazuya vs Victor | 55–68 | 44.72% |
| John Kazuya vs Devil Jin | 52–58 | 47.27% |
| John Kazuya vs Raven | 47–54 | 46.53% |
| John Kazuya vs Leo | 45–55 | 45.00% |
| John Kazuya vs Jack-8 | 40–54 | 42.55% |
| John Kazuya vs Nina | 41–53 | 43.62% |
| John Kazuya vs Clive | 51–39 | 56.67% |
| John Kazuya vs Alisa | 50–30 | 62.50% |
| John Kazuya vs Lidia | 48–31 | 60.76% |
| John Kazuya vs Leroy | 39–39 | 50.00% |
| John Kazuya vs Kuma | 32–31 | 50.79% |
| John Kazuya vs Claudio | 27–32–1 | 45.76% |
| John Kazuya vs Zafina | 27–30 | 47.37% |
| John Kazuya vs Anna | 10–20 | 33.33% |
| John Kazuya vs Shaheen | 18–11 | 62.07% |
| John Kazuya vs Armor King | 9–14 | 39.13% |
| John Kazuya vs Panda | 6–9 | 40.00% |
| John Kazuya vs Miary Zo | 6–7 | 46.15% |
| John Kazuya vs Fahkumram | 6–5 | 54.55% |
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.