| KamiNappa vs King | 70–70 | 50.00% |
| KamiNappa vs Kazuya | 56–77 | 42.11% |
| KamiNappa vs Jin | 60–61 | 49.59% |
| KamiNappa vs Reina | 51–63 | 44.74% |
| KamiNappa vs Bryan | 41–54 | 43.16% |
| KamiNappa vs Steve | 41–46 | 47.13% |
| KamiNappa vs Hwoarang | 42–42 | 50.00% |
| KamiNappa vs Lili | 38–35 | 52.05% |
| KamiNappa vs Dragunov | 38–33 | 53.52% |
| KamiNappa vs Law | 35–29 | 54.69% |
| KamiNappa vs Eddy | 25–37 | 40.32% |
| KamiNappa vs Asuka | 26–32 | 44.83% |
| KamiNappa vs Heihachi | 32–26 | 55.17% |
| KamiNappa vs Azucena | 21–31 | 40.38% |
| KamiNappa vs Yoshimitsu | 30–20 | 60.00% |
| KamiNappa vs Victor | 20–27 | 42.55% |
| KamiNappa vs Lee | 22–23 | 48.89% |
| KamiNappa vs Kuma | 14–24 | 36.84% |
| KamiNappa vs Xiaoyu | 21–16 | 56.76% |
| KamiNappa vs Leroy | 18–19 | 48.65% |
| KamiNappa vs Paul | 16–20 | 44.44% |
| KamiNappa vs Lars | 16–20 | 44.44% |
| KamiNappa vs Nina | 16–16 | 50.00% |
| KamiNappa vs Leo | 13–15 | 46.43% |
| KamiNappa vs Feng | 9–17 | 34.62% |
| KamiNappa vs Jack-8 | 11–14 | 44.00% |
| KamiNappa vs Devil Jin | 7–15 | 31.82% |
| KamiNappa vs Jun | 10–12 | 45.45% |
| KamiNappa vs Raven | 13–9 | 59.09% |
| KamiNappa vs Alisa | 3–16 | 15.79% |
| KamiNappa vs Shaheen | 9–8 | 52.94% |
| KamiNappa vs Lidia | 2–13 | 13.33% |
| KamiNappa vs Zafina | 5–7 | 41.67% |
| KamiNappa vs Armor King | 5–7 | 41.67% |
| KamiNappa vs Claudio | 2–5 | 28.57% |
| KamiNappa vs Panda | 2–4 | 33.33% |
| KamiNappa vs Anna | 4–2 | 66.67% |
| KamiNappa vs Clive | 2–3 | 40.00% |
| KamiNappa vs Fahkumram | 2–1 | 66.67% |
| KamiNappa vs Miary Zo | 0–2 | 0.00% |
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.