| Sampere vs Kazuya | 31–15 | 67.39% |
| Sampere vs Bryan | 25–10 | 71.43% |
| Sampere vs Jin | 20–11 | 64.52% |
| Sampere vs Hwoarang | 19–10 | 65.52% |
| Sampere vs Reina | 18–11 | 62.07% |
| Sampere vs Law | 20–8 | 71.43% |
| Sampere vs King | 19–9 | 67.86% |
| Sampere vs Yoshimitsu | 11–11 | 50.00% |
| Sampere vs Devil Jin | 14–6 | 70.00% |
| Sampere vs Lee | 9–9 | 50.00% |
| Sampere vs Jun | 12–6 | 66.67% |
| Sampere vs Paul | 9–6 | 60.00% |
| Sampere vs Steve | 12–3 | 80.00% |
| Sampere vs Dragunov | 10–5 | 66.67% |
| Sampere vs Asuka | 9–5 | 64.29% |
| Sampere vs Lili | 10–4 | 71.43% |
| Sampere vs Eddy | 7–7 | 50.00% |
| Sampere vs Alisa | 6–5 | 54.55% |
| Sampere vs Azucena | 8–3 | 72.73% |
| Sampere vs Leo | 6–3 | 66.67% |
| Sampere vs Jack-8 | 4–4 | 50.00% |
| Sampere vs Leroy | 7–1 | 87.50% |
| Sampere vs Xiaoyu | 2–5 | 28.57% |
| Sampere vs Feng | 4–3 | 57.14% |
| Sampere vs Claudio | 3–4 | 42.86% |
| Sampere vs Lars | 3–3 | 50.00% |
| Sampere vs Shaheen | 2–4 | 33.33% |
| Sampere vs Nina | 5–1 | 83.33% |
| Sampere vs Zafina | 3–2 | 60.00% |
| Sampere vs Victor | 2–3 | 40.00% |
| Sampere vs Kuma | 1–3 | 25.00% |
| Sampere vs Raven | 0–1 | 0.00% |
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.