| Neii vs Kazuya | 13–16 | 44.83% |
| Neii vs King | 11–14 | 44.00% |
| Neii vs Bryan | 14–7 | 66.67% |
| Neii vs Jin | 11–9 | 55.00% |
| Neii vs Reina | 14–6 | 70.00% |
| Neii vs Heihachi | 5–13 | 27.78% |
| Neii vs Law | 10–7 | 58.82% |
| Neii vs Eddy | 10–7 | 58.82% |
| Neii vs Yoshimitsu | 7–9 | 43.75% |
| Neii vs Hwoarang | 6–10 | 37.50% |
| Neii vs Dragunov | 8–5 | 61.54% |
| Neii vs Lars | 4–9 | 30.77% |
| Neii vs Nina | 10–3 | 76.92% |
| Neii vs Steve | 7–4 | 63.64% |
| Neii vs Lidia | 6–5 | 54.55% |
| Neii vs Devil Jin | 5–5 | 50.00% |
| Neii vs Fahkumram | 4–6 | 40.00% |
| Neii vs Feng | 6–2 | 75.00% |
| Neii vs Victor | 8–0 | 100.00% |
| Neii vs Xiaoyu | 4–3 | 57.14% |
| Neii vs Jun | 5–2 | 71.43% |
| Neii vs Paul | 4–2 | 66.67% |
| Neii vs Lili | 3–3 | 50.00% |
| Neii vs Lee | 3–3 | 50.00% |
| Neii vs Kuma | 4–2 | 66.67% |
| Neii vs Leroy | 5–1 | 83.33% |
| Neii vs Jack-8 | 5–0 | 100.00% |
| Neii vs Alisa | 1–4 | 20.00% |
| Neii vs Azucena | 1–4 | 20.00% |
| Neii vs Clive | 3–2 | 60.00% |
| Neii vs Armor King | 3–2 | 60.00% |
| Neii vs Anna | 4–0 | 100.00% |
| Neii vs Asuka | 3–0 | 100.00% |
| Neii vs Shaheen | 0–2 | 0.00% |
| Neii vs Zafina | 2–0 | 100.00% |
| Neii vs Claudio | 0–1 | 0.00% |
| Neii vs Miary Zo | 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.