| Niepper vs Kazuya | 122–82 | 59.80% |
| Niepper vs Jin | 105–93 | 53.03% |
| Niepper vs Bryan | 92–84 | 52.27% |
| Niepper vs Hwoarang | 58–73–1 | 44.27% |
| Niepper vs Dragunov | 49–52 | 48.51% |
| Niepper vs Lili | 45–54–1 | 45.45% |
| Niepper vs Paul | 52–44 | 54.17% |
| Niepper vs Steve | 45–48 | 48.39% |
| Niepper vs Reina | 47–46 | 50.54% |
| Niepper vs Alisa | 56–33–1 | 62.92% |
| Niepper vs Heihachi | 42–46 | 47.73% |
| Niepper vs Yoshimitsu | 49–37 | 56.98% |
| Niepper vs Devil Jin | 40–42 | 48.78% |
| Niepper vs King | 38–43 | 46.91% |
| Niepper vs Law | 39–37 | 51.32% |
| Niepper vs Lee | 29–44 | 39.73% |
| Niepper vs Feng | 40–24 | 62.50% |
| Niepper vs Jun | 24–30 | 44.44% |
| Niepper vs Eddy | 23–29 | 44.23% |
| Niepper vs Azucena | 23–25 | 47.92% |
| Niepper vs Leo | 19–28 | 40.43% |
| Niepper vs Claudio | 18–29 | 38.30% |
| Niepper vs Raven | 22–25 | 46.81% |
| Niepper vs Nina | 32–12 | 72.73% |
| Niepper vs Lars | 19–24 | 44.19% |
| Niepper vs Xiaoyu | 24–16 | 60.00% |
| Niepper vs Asuka | 19–20 | 48.72% |
| Niepper vs Jack-8 | 18–20 | 47.37% |
| Niepper vs Victor | 17–15 | 53.12% |
| Niepper vs Armor King | 14–18 | 43.75% |
| Niepper vs Fahkumram | 11–19 | 36.67% |
| Niepper vs Leroy | 13–13 | 50.00% |
| Niepper vs Kuma | 15–8 | 65.22% |
| Niepper vs Lidia | 9–12 | 42.86% |
| Niepper vs Clive | 6–15 | 28.57% |
| Niepper vs Zafina | 9–10 | 47.37% |
| Niepper vs Anna | 14–5 | 73.68% |
| Niepper vs Shaheen | 11–7 | 61.11% |
| Niepper vs Panda | 6–7 | 46.15% |
| Niepper vs Miary Zo | 2–8 | 20.00% |
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.