| Niiran vs Jin | 40–55 | 42.11% |
| Niiran vs King | 42–52 | 44.68% |
| Niiran vs Kazuya | 46–35 | 56.79% |
| Niiran vs Hwoarang | 34–42 | 44.74% |
| Niiran vs Bryan | 40–21 | 65.57% |
| Niiran vs Dragunov | 29–29 | 50.00% |
| Niiran vs Steve | 27–30 | 47.37% |
| Niiran vs Law | 24–30 | 44.44% |
| Niiran vs Reina | 34–19 | 64.15% |
| Niiran vs Lee | 27–25 | 51.92% |
| Niiran vs Yoshimitsu | 29–20 | 59.18% |
| Niiran vs Lili | 20–26 | 43.48% |
| Niiran vs Feng | 16–21 | 43.24% |
| Niiran vs Paul | 21–15 | 58.33% |
| Niiran vs Alisa | 13–20 | 39.39% |
| Niiran vs Asuka | 15–14 | 51.72% |
| Niiran vs Azucena | 17–12 | 58.62% |
| Niiran vs Devil Jin | 16–12 | 57.14% |
| Niiran vs Lars | 15–13 | 53.57% |
| Niiran vs Heihachi | 8–19 | 29.63% |
| Niiran vs Jun | 13–13 | 50.00% |
| Niiran vs Raven | 19–7 | 73.08% |
| Niiran vs Nina | 15–9 | 62.50% |
| Niiran vs Victor | 14–8 | 63.64% |
| Niiran vs Lidia | 8–13 | 38.10% |
| Niiran vs Jack-8 | 12–8 | 60.00% |
| Niiran vs Leo | 10–10 | 50.00% |
| Niiran vs Kuma | 13–4 | 76.47% |
| Niiran vs Leroy | 9–5 | 64.29% |
| Niiran vs Eddy | 9–5 | 64.29% |
| Niiran vs Clive | 7–7 | 50.00% |
| Niiran vs Zafina | 6–6 | 50.00% |
| Niiran vs Armor King | 5–7 | 41.67% |
| Niiran vs Claudio | 4–6 | 40.00% |
| Niiran vs Panda | 5–3 | 62.50% |
| Niiran vs Xiaoyu | 4–3 | 57.14% |
| Niiran vs Fahkumram | 6–1 | 85.71% |
| Niiran vs Miary Zo | 6–1 | 85.71% |
| Niiran vs Shaheen | 4–2 | 66.67% |
| Niiran vs Anna | 0–2 | 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.