| Niepper vs Jin | 99–90 | 52.38% |
| Niepper vs Kazuya | 104–77 | 57.46% |
| Niepper vs Bryan | 79–77 | 50.64% |
| Niepper vs Hwoarang | 52–70–1 | 42.62% |
| Niepper vs Dragunov | 47–52 | 47.47% |
| Niepper vs Alisa | 54–32–1 | 62.79% |
| Niepper vs Paul | 49–37 | 56.98% |
| Niepper vs Lili | 40–45–1 | 47.06% |
| Niepper vs Heihachi | 40–46 | 46.51% |
| Niepper vs Steve | 40–43 | 48.19% |
| Niepper vs Reina | 44–37 | 54.32% |
| Niepper vs Yoshimitsu | 47–31 | 60.26% |
| Niepper vs Devil Jin | 34–40 | 45.95% |
| Niepper vs Law | 36–36 | 50.00% |
| Niepper vs King | 31–41 | 43.06% |
| Niepper vs Lee | 28–41 | 40.58% |
| Niepper vs Feng | 37–23 | 61.67% |
| Niepper vs Jun | 20–29 | 40.82% |
| Niepper vs Claudio | 18–29 | 38.30% |
| Niepper vs Eddy | 22–25 | 46.81% |
| Niepper vs Leo | 19–27 | 41.30% |
| Niepper vs Azucena | 20–24 | 45.45% |
| Niepper vs Raven | 21–23 | 47.73% |
| Niepper vs Lars | 18–22 | 45.00% |
| Niepper vs Nina | 29–11 | 72.50% |
| Niepper vs Asuka | 19–20 | 48.72% |
| Niepper vs Xiaoyu | 24–14 | 63.16% |
| Niepper vs Jack-8 | 18–18 | 50.00% |
| Niepper vs Victor | 17–15 | 53.12% |
| Niepper vs Leroy | 13–13 | 50.00% |
| Niepper vs Fahkumram | 10–15 | 40.00% |
| Niepper vs Clive | 6–14 | 30.00% |
| Niepper vs Armor King | 7–13 | 35.00% |
| Niepper vs Kuma | 12–7 | 63.16% |
| Niepper vs Zafina | 9–10 | 47.37% |
| Niepper vs Lidia | 8–11 | 42.11% |
| Niepper vs Anna | 13–4 | 76.47% |
| Niepper vs Shaheen | 9–7 | 56.25% |
| Niepper vs Panda | 6–7 | 46.15% |
| Niepper vs Miary Zo | 2–7 | 22.22% |
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.