| NIGHTWALKER vs King | 44–62 | 41.51% |
| NIGHTWALKER vs Jin | 46–57 | 44.66% |
| NIGHTWALKER vs Steve | 33–53 | 38.37% |
| NIGHTWALKER vs Kazuya | 26–55 | 32.10% |
| NIGHTWALKER vs Bryan | 17–54 | 23.94% |
| NIGHTWALKER vs Law | 21–42 | 33.33% |
| NIGHTWALKER vs Dragunov | 19–36 | 34.55% |
| NIGHTWALKER vs Jun | 24–25 | 48.98% |
| NIGHTWALKER vs Miary Zo | 18–29 | 38.30% |
| NIGHTWALKER vs Heihachi | 19–24 | 44.19% |
| NIGHTWALKER vs Hwoarang | 18–22 | 45.00% |
| NIGHTWALKER vs Armor King | 9–31 | 22.50% |
| NIGHTWALKER vs Victor | 18–19 | 48.65% |
| NIGHTWALKER vs Clive | 12–20 | 37.50% |
| NIGHTWALKER vs Yoshimitsu | 9–19 | 32.14% |
| NIGHTWALKER vs Lili | 5–21 | 19.23% |
| NIGHTWALKER vs Paul | 12–11 | 52.17% |
| NIGHTWALKER vs Azucena | 2–20 | 9.09% |
| NIGHTWALKER vs Anna | 7–15 | 31.82% |
| NIGHTWALKER vs Fahkumram | 11–9 | 55.00% |
| NIGHTWALKER vs Reina | 8–10 | 44.44% |
| NIGHTWALKER vs Leo | 4–12 | 25.00% |
| NIGHTWALKER vs Nina | 4–12 | 25.00% |
| NIGHTWALKER vs Eddy | 6–10 | 37.50% |
| NIGHTWALKER vs Jack-8 | 6–9 | 40.00% |
| NIGHTWALKER vs Asuka | 6–9 | 40.00% |
| NIGHTWALKER vs Lee | 7–8 | 46.67% |
| NIGHTWALKER vs Lidia | 8–6 | 57.14% |
| NIGHTWALKER vs Devil Jin | 8–5 | 61.54% |
| NIGHTWALKER vs Lars | 6–7 | 46.15% |
| NIGHTWALKER vs Xiaoyu | 4–8 | 33.33% |
| NIGHTWALKER vs Leroy | 7–5 | 58.33% |
| NIGHTWALKER vs Feng | 0–10 | 0.00% |
| NIGHTWALKER vs Raven | 3–6 | 33.33% |
| NIGHTWALKER vs Claudio | 2–6 | 25.00% |
| NIGHTWALKER vs Shaheen | 1–6 | 14.29% |
| NIGHTWALKER vs Kuma | 2–3 | 40.00% |
| NIGHTWALKER vs Alisa | 2–1 | 66.67% |
| NIGHTWALKER vs Panda | 2–1 | 66.67% |
| NIGHTWALKER vs Zafina | 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.