| byczek vs Kazuya | 90–63 | 58.82% |
| byczek vs Bryan | 72–63 | 53.33% |
| byczek vs Jin | 57–46 | 55.34% |
| byczek vs Heihachi | 51–52 | 49.51% |
| byczek vs King | 44–53 | 45.36% |
| byczek vs Lili | 39–52 | 42.86% |
| byczek vs Reina | 46–39 | 54.12% |
| byczek vs Steve | 42–41 | 50.60% |
| byczek vs Dragunov | 46–37 | 55.42% |
| byczek vs Hwoarang | 41–37 | 52.56% |
| byczek vs Paul | 45–26 | 63.38% |
| byczek vs Fahkumram | 23–36 | 38.98% |
| byczek vs Devil Jin | 24–31 | 43.64% |
| byczek vs Law | 23–30 | 43.40% |
| byczek vs Lars | 25–23 | 52.08% |
| byczek vs Lee | 23–25 | 47.92% |
| byczek vs Armor King | 29–18 | 61.70% |
| byczek vs Yoshimitsu | 21–25 | 45.65% |
| byczek vs Asuka | 22–23 | 48.89% |
| byczek vs Feng | 25–20 | 55.56% |
| byczek vs Claudio | 22–14 | 61.11% |
| byczek vs Jun | 21–12 | 63.64% |
| byczek vs Miary Zo | 12–19 | 38.71% |
| byczek vs Azucena | 15–15 | 50.00% |
| byczek vs Raven | 13–17 | 43.33% |
| byczek vs Leo | 18–10 | 64.29% |
| byczek vs Leroy | 15–13 | 53.57% |
| byczek vs Eddy | 14–14 | 50.00% |
| byczek vs Victor | 16–11 | 59.26% |
| byczek vs Nina | 13–13 | 50.00% |
| byczek vs Jack-8 | 14–11 | 56.00% |
| byczek vs Xiaoyu | 8–16 | 33.33% |
| byczek vs Alisa | 13–11 | 54.17% |
| byczek vs Anna | 8–11 | 42.11% |
| byczek vs Shaheen | 8–10 | 44.44% |
| byczek vs Clive | 8–6 | 57.14% |
| byczek vs Lidia | 7–6 | 53.85% |
| byczek vs Zafina | 5–1 | 83.33% |
| byczek vs Panda | 4–1 | 80.00% |
| byczek vs Kuma | 0–2 | 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.