| Szczepanskyy_ vs King | 44–63 | 41.12% |
| Szczepanskyy_ vs Bryan | 39–40 | 49.37% |
| Szczepanskyy_ vs Kazuya | 39–39 | 50.00% |
| Szczepanskyy_ vs Hwoarang | 40–36 | 52.63% |
| Szczepanskyy_ vs Jin | 32–33 | 49.23% |
| Szczepanskyy_ vs Heihachi | 20–44 | 31.25% |
| Szczepanskyy_ vs Reina | 27–25 | 51.92% |
| Szczepanskyy_ vs Clive | 23–24 | 48.94% |
| Szczepanskyy_ vs Steve | 18–25 | 41.86% |
| Szczepanskyy_ vs Law | 28–14 | 66.67% |
| Szczepanskyy_ vs Devil Jin | 23–19 | 54.76% |
| Szczepanskyy_ vs Lili | 25–17 | 59.52% |
| Szczepanskyy_ vs Yoshimitsu | 19–22 | 46.34% |
| Szczepanskyy_ vs Lars | 23–17–1 | 57.50% |
| Szczepanskyy_ vs Paul | 21–15 | 58.33% |
| Szczepanskyy_ vs Dragunov | 13–21 | 38.24% |
| Szczepanskyy_ vs Nina | 22–12 | 64.71% |
| Szczepanskyy_ vs Lee | 20–13 | 60.61% |
| Szczepanskyy_ vs Alisa | 19–13 | 59.38% |
| Szczepanskyy_ vs Jun | 17–12 | 58.62% |
| Szczepanskyy_ vs Azucena | 10–18 | 35.71% |
| Szczepanskyy_ vs Fahkumram | 16–11 | 59.26% |
| Szczepanskyy_ vs Xiaoyu | 11–15 | 42.31% |
| Szczepanskyy_ vs Asuka | 14–12 | 53.85% |
| Szczepanskyy_ vs Feng | 13–13 | 50.00% |
| Szczepanskyy_ vs Claudio | 14–11 | 56.00% |
| Szczepanskyy_ vs Lidia | 10–15 | 40.00% |
| Szczepanskyy_ vs Leo | 11–10 | 52.38% |
| Szczepanskyy_ vs Leroy | 11–10 | 52.38% |
| Szczepanskyy_ vs Jack-8 | 8–9 | 47.06% |
| Szczepanskyy_ vs Eddy | 8–9 | 47.06% |
| Szczepanskyy_ vs Victor | 7–9 | 43.75% |
| Szczepanskyy_ vs Armor King | 8–5 | 61.54% |
| Szczepanskyy_ vs Raven | 4–6 | 40.00% |
| Szczepanskyy_ vs Zafina | 7–1 | 87.50% |
| Szczepanskyy_ vs Anna | 3–5 | 37.50% |
| Szczepanskyy_ vs Panda | 4–1 | 80.00% |
| Szczepanskyy_ vs Shaheen | 2–0 | 100.00% |
| Szczepanskyy_ vs Kuma | 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.