| Nekken vs Reina | 56–52 | 51.85% |
| Nekken vs Bryan | 41–37 | 52.56% |
| Nekken vs King | 29–31 | 48.33% |
| Nekken vs Kazuya | 23–31 | 42.59% |
| Nekken vs Lili | 17–23 | 42.50% |
| Nekken vs Jin | 13–26 | 33.33% |
| Nekken vs Dragunov | 17–20 | 45.95% |
| Nekken vs Azucena | 20–16 | 55.56% |
| Nekken vs Asuka | 22–13 | 62.86% |
| Nekken vs Yoshimitsu | 10–22 | 31.25% |
| Nekken vs Lee | 20–9 | 68.97% |
| Nekken vs Steve | 21–6 | 77.78% |
| Nekken vs Feng | 15–12 | 55.56% |
| Nekken vs Law | 12–14 | 46.15% |
| Nekken vs Lidia | 9–14 | 39.13% |
| Nekken vs Leo | 11–11 | 50.00% |
| Nekken vs Paul | 11–9 | 55.00% |
| Nekken vs Hwoarang | 9–9 | 50.00% |
| Nekken vs Xiaoyu | 12–5 | 70.59% |
| Nekken vs Lars | 8–9 | 47.06% |
| Nekken vs Jun | 6–11 | 35.29% |
| Nekken vs Nina | 8–8 | 50.00% |
| Nekken vs Victor | 4–12 | 25.00% |
| Nekken vs Devil Jin | 6–8 | 42.86% |
| Nekken vs Jack-8 | 3–10 | 23.08% |
| Nekken vs Alisa | 4–8 | 33.33% |
| Nekken vs Raven | 5–7 | 41.67% |
| Nekken vs Shaheen | 4–7 | 36.36% |
| Nekken vs Zafina | 8–2 | 80.00% |
| Nekken vs Eddy | 4–6 | 40.00% |
| Nekken vs Clive | 4–5 | 44.44% |
| Nekken vs Kuma | 7–1 | 87.50% |
| Nekken vs Leroy | 5–2 | 71.43% |
| Nekken vs Panda | 2–3 | 40.00% |
| Nekken vs Heihachi | 2–3 | 40.00% |
| Nekken vs Claudio | 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.