| Boniek vs Reina | 36–38 | 48.65% |
| Boniek vs King | 12–31 | 27.91% |
| Boniek vs Kazuya | 13–29 | 30.95% |
| Boniek vs Jin | 15–25 | 37.50% |
| Boniek vs Steve | 16–24 | 40.00% |
| Boniek vs Eddy | 12–28 | 30.00% |
| Boniek vs Dragunov | 10–25 | 28.57% |
| Boniek vs Yoshimitsu | 14–17 | 45.16% |
| Boniek vs Bryan | 8–22 | 26.67% |
| Boniek vs Asuka | 8–21 | 27.59% |
| Boniek vs Lili | 6–19 | 24.00% |
| Boniek vs Hwoarang | 12–12 | 50.00% |
| Boniek vs Jun | 10–14 | 41.67% |
| Boniek vs Victor | 14–9 | 60.87% |
| Boniek vs Devil Jin | 9–12 | 42.86% |
| Boniek vs Kuma | 11–10 | 52.38% |
| Boniek vs Azucena | 10–11 | 47.62% |
| Boniek vs Lee | 6–10 | 37.50% |
| Boniek vs Lars | 7–8 | 46.67% |
| Boniek vs Paul | 6–8 | 42.86% |
| Boniek vs Law | 4–10 | 28.57% |
| Boniek vs Alisa | 2–12 | 14.29% |
| Boniek vs Xiaoyu | 5–8 | 38.46% |
| Boniek vs Feng | 2–11 | 15.38% |
| Boniek vs Leo | 2–11 | 15.38% |
| Boniek vs Claudio | 1–11 | 8.33% |
| Boniek vs Jack-8 | 3–8 | 27.27% |
| Boniek vs Leroy | 5–5 | 50.00% |
| Boniek vs Nina | 5–3 | 62.50% |
| Boniek vs Raven | 1–7 | 12.50% |
| Boniek vs Zafina | 4–1 | 80.00% |
| Boniek vs Shaheen | 2–2 | 50.00% |
| Boniek vs Anna | 2–0 | 100.00% |
| Boniek vs Heihachi | 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.