| John Naito vs Jin | 32–30 | 51.61% |
| John Naito vs King | 30–9 | 76.92% |
| John Naito vs Lili | 29–7 | 80.56% |
| John Naito vs Reina | 23–11 | 67.65% |
| John Naito vs Kazuya | 23–10 | 69.70% |
| John Naito vs Feng | 17–13 | 56.67% |
| John Naito vs Dragunov | 25–5 | 83.33% |
| John Naito vs Nina | 22–6 | 78.57% |
| John Naito vs Eddy | 17–11 | 60.71% |
| John Naito vs Law | 23–4 | 85.19% |
| John Naito vs Bryan | 20–5 | 80.00% |
| John Naito vs Jack-8 | 12–12 | 50.00% |
| John Naito vs Hwoarang | 17–6 | 73.91% |
| John Naito vs Leo | 12–11 | 52.17% |
| John Naito vs Paul | 15–6 | 71.43% |
| John Naito vs Azucena | 18–3 | 85.71% |
| John Naito vs Xiaoyu | 17–2 | 89.47% |
| John Naito vs Alisa | 9–8 | 52.94% |
| John Naito vs Jun | 12–5 | 70.59% |
| John Naito vs Victor | 13–4 | 76.47% |
| John Naito vs Claudio | 11–5 | 68.75% |
| John Naito vs Steve | 12–3 | 80.00% |
| John Naito vs Yoshimitsu | 9–5 | 64.29% |
| John Naito vs Devil Jin | 9–5 | 64.29% |
| John Naito vs Lars | 7–7 | 50.00% |
| John Naito vs Lee | 8–5 | 61.54% |
| John Naito vs Leroy | 7–4 | 63.64% |
| John Naito vs Asuka | 10–0 | 100.00% |
| John Naito vs Raven | 6–4 | 60.00% |
| John Naito vs Lidia | 6–2 | 75.00% |
| John Naito vs Zafina | 3–3 | 50.00% |
| John Naito vs Kuma | 5–0 | 100.00% |
| John Naito vs Shaheen | 2–1 | 66.67% |
| John Naito vs Heihachi | 3–0 | 100.00% |
| John Naito vs Panda | 1–1 | 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.