| Nijima vs Heihachi | 82–55 | 59.85% |
| Nijima vs Jin | 66–56 | 54.10% |
| Nijima vs Kazuya | 66–50–1 | 56.90% |
| Nijima vs Dragunov | 45–59 | 43.27% |
| Nijima vs King | 48–41 | 53.93% |
| Nijima vs Bryan | 42–40 | 51.22% |
| Nijima vs Hwoarang | 38–42 | 47.50% |
| Nijima vs Law | 39–35 | 52.70% |
| Nijima vs Steve | 39–29 | 57.35% |
| Nijima vs Yoshimitsu | 30–36 | 45.45% |
| Nijima vs Paul | 28–21 | 57.14% |
| Nijima vs Nina | 36–13 | 73.47% |
| Nijima vs Devil Jin | 21–25 | 45.65% |
| Nijima vs Lee | 23–22 | 51.11% |
| Nijima vs Reina | 29–14 | 67.44% |
| Nijima vs Victor | 23–17 | 57.50% |
| Nijima vs Jun | 16–23 | 41.03% |
| Nijima vs Lili | 16–21 | 43.24% |
| Nijima vs Asuka | 17–19 | 47.22% |
| Nijima vs Azucena | 22–14 | 61.11% |
| Nijima vs Alisa | 12–22 | 35.29% |
| Nijima vs Jack-8 | 14–19 | 42.42% |
| Nijima vs Lars | 16–17 | 48.48% |
| Nijima vs Feng | 14–18 | 43.75% |
| Nijima vs Leroy | 13–15 | 46.43% |
| Nijima vs Xiaoyu | 11–16 | 40.74% |
| Nijima vs Leo | 15–8 | 65.22% |
| Nijima vs Eddy | 12–9 | 57.14% |
| Nijima vs Claudio | 15–5 | 75.00% |
| Nijima vs Clive | 9–8 | 52.94% |
| Nijima vs Kuma | 9–4 | 69.23% |
| Nijima vs Zafina | 1–9 | 10.00% |
| Nijima vs Panda | 5–3 | 62.50% |
| Nijima vs Lidia | 4–4 | 50.00% |
| Nijima vs Raven | 4–3 | 57.14% |
| Nijima vs Anna | 3–3 | 50.00% |
| Nijima vs Fahkumram | 2–4 | 33.33% |
| Nijima vs Shaheen | 2–1 | 66.67% |
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.