| Nitemare vs Kazuya | 68–47 | 59.13% |
| Nitemare vs Bryan | 70–25 | 73.68% |
| Nitemare vs Law | 58–33 | 63.74% |
| Nitemare vs King | 62–20 | 75.61% |
| Nitemare vs Hwoarang | 34–37 | 47.89% |
| Nitemare vs Jin | 37–32 | 53.62% |
| Nitemare vs Lee | 33–31 | 51.56% |
| Nitemare vs Reina | 40–24 | 62.50% |
| Nitemare vs Steve | 42–19 | 68.85% |
| Nitemare vs Devil Jin | 32–29 | 52.46% |
| Nitemare vs Azucena | 34–26 | 56.67% |
| Nitemare vs Yoshimitsu | 27–25 | 51.92% |
| Nitemare vs Paul | 36–15 | 70.59% |
| Nitemare vs Jun | 27–23 | 54.00% |
| Nitemare vs Heihachi | 31–17 | 64.58% |
| Nitemare vs Dragunov | 28–19 | 59.57% |
| Nitemare vs Lili | 26–20 | 56.52% |
| Nitemare vs Lidia | 33–12 | 73.33% |
| Nitemare vs Asuka | 18–26 | 40.91% |
| Nitemare vs Feng | 21–17 | 55.26% |
| Nitemare vs Leo | 21–17 | 55.26% |
| Nitemare vs Claudio | 20–16 | 55.56% |
| Nitemare vs Eddy | 19–17 | 52.78% |
| Nitemare vs Raven | 16–13 | 55.17% |
| Nitemare vs Xiaoyu | 10–18 | 35.71% |
| Nitemare vs Jack-8 | 16–12 | 57.14% |
| Nitemare vs Lars | 13–15 | 46.43% |
| Nitemare vs Alisa | 15–13 | 53.57% |
| Nitemare vs Shaheen | 14–12 | 53.85% |
| Nitemare vs Zafina | 10–16 | 38.46% |
| Nitemare vs Victor | 17–8 | 68.00% |
| Nitemare vs Nina | 14–6 | 70.00% |
| Nitemare vs Leroy | 9–10 | 47.37% |
| Nitemare vs Kuma | 9–7 | 56.25% |
| Nitemare vs Armor King | 11–3 | 78.57% |
| Nitemare vs Anna | 9–3 | 75.00% |
| Nitemare vs Panda | 1–7 | 12.50% |
| Nitemare vs Fahkumram | 4–1 | 80.00% |
| Nitemare vs Clive | 2–2 | 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.