| Neiiken vs Jin | 20–22 | 47.62% |
| Neiiken vs Kazuya | 14–27 | 34.15% |
| Neiiken vs King | 13–25 | 34.21% |
| Neiiken vs Law | 18–18 | 50.00% |
| Neiiken vs Reina | 23–13 | 63.89% |
| Neiiken vs Lili | 20–15 | 57.14% |
| Neiiken vs Steve | 27–5 | 84.38% |
| Neiiken vs Heihachi | 14–18 | 43.75% |
| Neiiken vs Hwoarang | 13–14 | 48.15% |
| Neiiken vs Bryan | 10–17 | 37.04% |
| Neiiken vs Azucena | 16–10 | 61.54% |
| Neiiken vs Armor King | 9–17 | 34.62% |
| Neiiken vs Lars | 10–12 | 45.45% |
| Neiiken vs Paul | 9–12 | 42.86% |
| Neiiken vs Nina | 11–8 | 57.89% |
| Neiiken vs Asuka | 11–6 | 64.71% |
| Neiiken vs Dragunov | 9–8 | 52.94% |
| Neiiken vs Lee | 9–7 | 56.25% |
| Neiiken vs Miary Zo | 6–10 | 37.50% |
| Neiiken vs Yoshimitsu | 3–11 | 21.43% |
| Neiiken vs Jun | 6–7 | 46.15% |
| Neiiken vs Feng | 4–8 | 33.33% |
| Neiiken vs Alisa | 3–9 | 25.00% |
| Neiiken vs Clive | 5–7 | 41.67% |
| Neiiken vs Xiaoyu | 4–7 | 36.36% |
| Neiiken vs Eddy | 10–1 | 90.91% |
| Neiiken vs Kuma | 4–6 | 40.00% |
| Neiiken vs Victor | 8–2 | 80.00% |
| Neiiken vs Raven | 3–7 | 30.00% |
| Neiiken vs Devil Jin | 2–6 | 25.00% |
| Neiiken vs Leroy | 4–3 | 57.14% |
| Neiiken vs Claudio | 1–5 | 16.67% |
| Neiiken vs Jack-8 | 2–3 | 40.00% |
| Neiiken vs Zafina | 4–1 | 80.00% |
| Neiiken vs Lidia | 5–0 | 100.00% |
| Neiiken vs Shaheen | 0–2 | 0.00% |
| Neiiken vs Anna | 0–2 | 0.00% |
| Neiiken vs Fahkumram | 2–0 | 100.00% |
| Neiiken vs Leo | 0–1 | 0.00% |
| Neiiken vs Panda | 1–0 | 100.00% |
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.