| Naichi vs Kazuya | 74–61 | 54.81% |
| Naichi vs Jin | 63–56 | 52.94% |
| Naichi vs Reina | 54–56 | 49.09% |
| Naichi vs King | 39–57 | 40.62% |
| Naichi vs Bryan | 44–47 | 48.35% |
| Naichi vs Steve | 52–28 | 65.00% |
| Naichi vs Lili | 43–30 | 58.90% |
| Naichi vs Law | 40–31 | 56.34% |
| Naichi vs Dragunov | 29–36 | 44.62% |
| Naichi vs Eddy | 21–42 | 33.33% |
| Naichi vs Asuka | 25–28 | 47.17% |
| Naichi vs Heihachi | 31–22 | 58.49% |
| Naichi vs Miary Zo | 25–24 | 51.02% |
| Naichi vs Hwoarang | 27–20 | 57.45% |
| Naichi vs Nina | 23–24 | 48.94% |
| Naichi vs Azucena | 21–26 | 44.68% |
| Naichi vs Armor King | 20–24 | 45.45% |
| Naichi vs Xiaoyu | 19–21 | 47.50% |
| Naichi vs Lee | 19–17 | 52.78% |
| Naichi vs Jun | 15–19 | 44.12% |
| Naichi vs Lidia | 20–11 | 64.52% |
| Naichi vs Anna | 16–13 | 55.17% |
| Naichi vs Paul | 11–17 | 39.29% |
| Naichi vs Yoshimitsu | 15–12 | 55.56% |
| Naichi vs Claudio | 10–17 | 37.04% |
| Naichi vs Alisa | 11–14 | 44.00% |
| Naichi vs Fahkumram | 7–12 | 36.84% |
| Naichi vs Leroy | 8–9 | 47.06% |
| Naichi vs Devil Jin | 7–9 | 43.75% |
| Naichi vs Zafina | 8–8 | 50.00% |
| Naichi vs Victor | 11–5 | 68.75% |
| Naichi vs Panda | 8–7 | 53.33% |
| Naichi vs Leo | 4–10 | 28.57% |
| Naichi vs Raven | 3–8 | 27.27% |
| Naichi vs Feng | 0–10 | 0.00% |
| Naichi vs Shaheen | 5–5 | 50.00% |
| Naichi vs Clive | 6–4 | 60.00% |
| Naichi vs Jack-8 | 2–7 | 22.22% |
| Naichi vs Lars | 4–4 | 50.00% |
| Naichi vs Kuma | 3–2 | 60.00% |
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.