| WEL | Nitewish vs Kazuya | 32–16 | 66.67% |
| WEL | Nitewish vs King | 25–15 | 62.50% |
| WEL | Nitewish vs Jin | 25–15 | 62.50% |
| WEL | Nitewish vs Steve | 21–15 | 58.33% |
| WEL | Nitewish vs Dragunov | 19–16 | 54.29% |
| WEL | Nitewish vs Reina | 24–11 | 68.57% |
| WEL | Nitewish vs Victor | 12–16 | 42.86% |
| WEL | Nitewish vs Law | 9–18 | 33.33% |
| WEL | Nitewish vs Lee | 17–8 | 68.00% |
| WEL | Nitewish vs Lars | 13–11 | 54.17% |
| WEL | Nitewish vs Shaheen | 15–8 | 65.22% |
| WEL | Nitewish vs Lili | 13–9 | 59.09% |
| WEL | Nitewish vs Hwoarang | 11–10 | 52.38% |
| WEL | Nitewish vs Jun | 11–10 | 52.38% |
| WEL | Nitewish vs Feng | 9–11 | 45.00% |
| WEL | Nitewish vs Yoshimitsu | 9–10 | 47.37% |
| WEL | Nitewish vs Paul | 11–6 | 64.71% |
| WEL | Nitewish vs Bryan | 7–10 | 41.18% |
| WEL | Nitewish vs Xiaoyu | 14–2 | 87.50% |
| WEL | Nitewish vs Raven | 7–9 | 43.75% |
| WEL | Nitewish vs Devil Jin | 6–7 | 46.15% |
| WEL | Nitewish vs Asuka | 7–5 | 58.33% |
| WEL | Nitewish vs Alisa | 8–4 | 66.67% |
| WEL | Nitewish vs Lidia | 4–7 | 36.36% |
| WEL | Nitewish vs Claudio | 7–3 | 70.00% |
| WEL | Nitewish vs Jack-8 | 5–4 | 55.56% |
| WEL | Nitewish vs Leroy | 2–7 | 22.22% |
| WEL | Nitewish vs Azucena | 3–4 | 42.86% |
| WEL | Nitewish vs Leo | 1–5 | 16.67% |
| WEL | Nitewish vs Eddy | 3–3 | 50.00% |
| WEL | Nitewish vs Heihachi | 0–5 | 0.00% |
| WEL | Nitewish vs Clive | 1–4 | 20.00% |
| WEL | Nitewish vs Nina | 1–3 | 25.00% |
| WEL | Nitewish vs Kuma | 1–2 | 33.33% |
| WEL | Nitewish vs Zafina | 3–0 | 100.00% |
| WEL | Nitewish vs Panda | 1–1 | 50.00% |
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.