| Nikkamaru vs Jin | 16–7 | 69.57% |
| Nikkamaru vs Kazuya | 13–10 | 56.52% |
| Nikkamaru vs Bryan | 9–11 | 45.00% |
| Nikkamaru vs Hwoarang | 11–5 | 68.75% |
| Nikkamaru vs Reina | 10–6 | 62.50% |
| Nikkamaru vs King | 9–5 | 64.29% |
| Nikkamaru vs Eddy | 5–9 | 35.71% |
| Nikkamaru vs Lili | 7–6 | 53.85% |
| Nikkamaru vs Jun | 7–6 | 53.85% |
| Nikkamaru vs Leo | 4–8 | 33.33% |
| Nikkamaru vs Steve | 7–4 | 63.64% |
| Nikkamaru vs Paul | 5–5 | 50.00% |
| Nikkamaru vs Yoshimitsu | 5–5 | 50.00% |
| Nikkamaru vs Devil Jin | 3–7 | 30.00% |
| Nikkamaru vs Lars | 6–4 | 60.00% |
| Nikkamaru vs Law | 5–3 | 62.50% |
| Nikkamaru vs Feng | 6–1 | 85.71% |
| Nikkamaru vs Dragunov | 1–6 | 14.29% |
| Nikkamaru vs Leroy | 3–4 | 42.86% |
| Nikkamaru vs Azucena | 5–2 | 71.43% |
| Nikkamaru vs Victor | 4–2 | 66.67% |
| Nikkamaru vs Xiaoyu | 3–2 | 60.00% |
| Nikkamaru vs Jack-8 | 2–3 | 40.00% |
| Nikkamaru vs Asuka | 2–3 | 40.00% |
| Nikkamaru vs Lidia | 1–4 | 20.00% |
| Nikkamaru vs Nina | 2–2 | 50.00% |
| Nikkamaru vs Zafina | 1–3 | 25.00% |
| Nikkamaru vs Heihachi | 3–1 | 75.00% |
| Nikkamaru vs Alisa | 2–1 | 66.67% |
| Nikkamaru vs Lee | 2–1 | 66.67% |
| Nikkamaru vs Kuma | 0–3 | 0.00% |
| Nikkamaru vs Shaheen | 1–1 | 50.00% |
| Nikkamaru vs Raven | 2–0 | 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.