| Niji Kami vs King | 48–37 | 56.47% |
| Niji Kami vs Jin | 36–24 | 60.00% |
| Niji Kami vs Bryan | 29–25 | 53.70% |
| Niji Kami vs Reina | 31–17 | 64.58% |
| Niji Kami vs Lili | 29–16 | 64.44% |
| Niji Kami vs Kazuya | 29–15 | 65.91% |
| Niji Kami vs Law | 17–25 | 40.48% |
| Niji Kami vs Hwoarang | 29–12 | 70.73% |
| Niji Kami vs Lidia | 18–23 | 43.90% |
| Niji Kami vs Dragunov | 22–17 | 56.41% |
| Niji Kami vs Lee | 17–21 | 44.74% |
| Niji Kami vs Jun | 19–19 | 50.00% |
| Niji Kami vs Lars | 13–21 | 38.24% |
| Niji Kami vs Victor | 13–18 | 41.94% |
| Niji Kami vs Steve | 14–12 | 53.85% |
| Niji Kami vs Heihachi | 5–20 | 20.00% |
| Niji Kami vs Paul | 13–11 | 54.17% |
| Niji Kami vs Azucena | 5–18 | 21.74% |
| Niji Kami vs Yoshimitsu | 9–11 | 45.00% |
| Niji Kami vs Eddy | 13–4 | 76.47% |
| Niji Kami vs Armor King | 10–7 | 58.82% |
| Niji Kami vs Devil Jin | 6–10 | 37.50% |
| Niji Kami vs Kuma | 8–7 | 53.33% |
| Niji Kami vs Jack-8 | 7–7 | 50.00% |
| Niji Kami vs Asuka | 14–0 | 100.00% |
| Niji Kami vs Nina | 6–8 | 42.86% |
| Niji Kami vs Leo | 8–5 | 61.54% |
| Niji Kami vs Xiaoyu | 7–5 | 58.33% |
| Niji Kami vs Fahkumram | 3–7 | 30.00% |
| Niji Kami vs Feng | 4–5 | 44.44% |
| Niji Kami vs Raven | 7–2 | 77.78% |
| Niji Kami vs Leroy | 2–6 | 25.00% |
| Niji Kami vs Claudio | 4–3 | 57.14% |
| Niji Kami vs Shaheen | 6–1 | 85.71% |
| Niji Kami vs Alisa | 1–3 | 25.00% |
| Niji Kami vs Clive | 2–1 | 66.67% |
| Niji Kami vs Miary Zo | 3–0 | 100.00% |
| Niji Kami vs Panda | 0–2 | 0.00% |
| Niji Kami vs Anna | 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.