| Neiiken vs Kazuya | 18–32 | 36.00% |
| Neiiken vs Jin | 24–25 | 48.98% |
| Neiiken vs Reina | 26–20 | 56.52% |
| Neiiken vs King | 14–30 | 31.82% |
| Neiiken vs Lili | 24–16 | 60.00% |
| Neiiken vs Heihachi | 17–21 | 44.74% |
| Neiiken vs Law | 19–18 | 51.35% |
| Neiiken vs Steve | 29–8 | 78.38% |
| Neiiken vs Bryan | 12–19 | 38.71% |
| Neiiken vs Hwoarang | 13–17 | 43.33% |
| Neiiken vs Azucena | 18–10 | 64.29% |
| Neiiken vs Armor King | 11–17 | 39.29% |
| Neiiken vs Paul | 10–16 | 38.46% |
| Neiiken vs Dragunov | 11–12 | 47.83% |
| Neiiken vs Lars | 11–12 | 47.83% |
| Neiiken vs Miary Zo | 8–15 | 34.78% |
| Neiiken vs Nina | 12–10 | 54.55% |
| Neiiken vs Lee | 10–11 | 47.62% |
| Neiiken vs Asuka | 12–6 | 66.67% |
| Neiiken vs Yoshimitsu | 4–12 | 25.00% |
| Neiiken vs Jun | 8–8 | 50.00% |
| Neiiken vs Lidia | 9–7 | 56.25% |
| Neiiken vs Clive | 6–9 | 40.00% |
| Neiiken vs Eddy | 11–3 | 78.57% |
| Neiiken vs Alisa | 3–10 | 23.08% |
| Neiiken vs Victor | 11–2 | 84.62% |
| Neiiken vs Devil Jin | 2–10 | 16.67% |
| Neiiken vs Feng | 4–8 | 33.33% |
| Neiiken vs Xiaoyu | 4–7 | 36.36% |
| Neiiken vs Leroy | 4–7 | 36.36% |
| Neiiken vs Raven | 4–7 | 36.36% |
| Neiiken vs Jack-8 | 4–6 | 40.00% |
| Neiiken vs Kuma | 4–6 | 40.00% |
| Neiiken vs Zafina | 4–4 | 50.00% |
| Neiiken vs Claudio | 1–6 | 14.29% |
| Neiiken vs Fahkumram | 4–1 | 80.00% |
| Neiiken vs Shaheen | 2–2 | 50.00% |
| Neiiken vs Anna | 2–2 | 50.00% |
| 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.