| Nappel vs Steve | 10–30 | 25.00% |
| Nappel vs Jin | 14–22 | 38.89% |
| Nappel vs Law | 8–26 | 23.53% |
| Nappel vs Hwoarang | 7–23 | 23.33% |
| Nappel vs Kazuya | 10–16 | 38.46% |
| Nappel vs Eddy | 12–14 | 46.15% |
| Nappel vs Lili | 10–15 | 40.00% |
| Nappel vs King | 3–21 | 12.50% |
| Nappel vs Jun | 9–15 | 37.50% |
| Nappel vs Reina | 12–11 | 52.17% |
| Nappel vs Victor | 5–18 | 21.74% |
| Nappel vs Dragunov | 4–17 | 19.05% |
| Nappel vs Bryan | 9–11 | 45.00% |
| Nappel vs Paul | 4–10 | 28.57% |
| Nappel vs Jack-8 | 0–14 | 0.00% |
| Nappel vs Asuka | 4–9 | 30.77% |
| Nappel vs Nina | 4–9 | 30.77% |
| Nappel vs Yoshimitsu | 3–8 | 27.27% |
| Nappel vs Lars | 2–9 | 18.18% |
| Nappel vs Alisa | 4–7 | 36.36% |
| Nappel vs Lee | 1–10 | 9.09% |
| Nappel vs Heihachi | 2–9 | 18.18% |
| Nappel vs Shaheen | 3–6 | 33.33% |
| Nappel vs Azucena | 5–4 | 55.56% |
| Nappel vs Feng | 2–6 | 25.00% |
| Nappel vs Devil Jin | 1–6 | 14.29% |
| Nappel vs Leroy | 1–6 | 14.29% |
| Nappel vs Fahkumram | 0–7 | 0.00% |
| Nappel vs Leo | 3–3 | 50.00% |
| Nappel vs Zafina | 1–5 | 16.67% |
| Nappel vs Anna | 0–6 | 0.00% |
| Nappel vs Claudio | 1–4 | 20.00% |
| Nappel vs Lidia | 3–2 | 60.00% |
| Nappel vs Xiaoyu | 3–1 | 75.00% |
| Nappel vs Panda | 3–1 | 75.00% |
| Nappel vs Raven | 1–3 | 25.00% |
| Nappel vs Clive | 4–0 | 100.00% |
| Nappel vs Kuma | 0–3 | 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.