| Nenn vs Reina | 19–33 | 36.54% |
| Nenn vs King | 15–36 | 29.41% |
| Nenn vs Jun | 22–24 | 47.83% |
| Nenn vs Steve | 17–25 | 40.48% |
| Nenn vs Hwoarang | 20–20 | 50.00% |
| Nenn vs Kazuya | 11–24 | 31.43% |
| Nenn vs Jin | 13–21 | 38.24% |
| Nenn vs Dragunov | 8–21 | 27.59% |
| Nenn vs Lidia | 11–15 | 42.31% |
| Nenn vs Yoshimitsu | 14–11 | 56.00% |
| Nenn vs Alisa | 9–14 | 39.13% |
| Nenn vs Eddy | 7–15 | 31.82% |
| Nenn vs Asuka | 8–13 | 38.10% |
| Nenn vs Lili | 6–13 | 31.58% |
| Nenn vs Devil Jin | 6–10 | 37.50% |
| Nenn vs Nina | 6–9 | 40.00% |
| Nenn vs Law | 5–9 | 35.71% |
| Nenn vs Xiaoyu | 7–6 | 53.85% |
| Nenn vs Bryan | 3–10 | 23.08% |
| Nenn vs Victor | 4–9 | 30.77% |
| Nenn vs Leo | 1–11 | 8.33% |
| Nenn vs Paul | 3–7 | 30.00% |
| Nenn vs Lars | 3–7 | 30.00% |
| Nenn vs Claudio | 3–6 | 33.33% |
| Nenn vs Zafina | 3–6 | 33.33% |
| Nenn vs Azucena | 3–6 | 33.33% |
| Nenn vs Jack-8 | 2–5 | 28.57% |
| Nenn vs Feng | 4–3 | 57.14% |
| Nenn vs Shaheen | 2–4 | 33.33% |
| Nenn vs Lee | 0–6 | 0.00% |
| Nenn vs Kuma | 2–3 | 40.00% |
| Nenn vs Leroy | 2–3 | 40.00% |
| Nenn vs Panda | 2–1 | 66.67% |
| Nenn vs Heihachi | 0–2 | 0.00% |
| Nenn vs Raven | 0–1 | 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.