| Knuckleheaddz vs King | 24–27 | 47.06% |
| Knuckleheaddz vs Law | 18–23 | 43.90% |
| Knuckleheaddz vs Hwoarang | 25–14 | 64.10% |
| Knuckleheaddz vs Steve | 17–13 | 56.67% |
| Knuckleheaddz vs Reina | 21–7 | 75.00% |
| Knuckleheaddz vs Azucena | 10–17 | 37.04% |
| Knuckleheaddz vs Eddy | 16–10 | 61.54% |
| Knuckleheaddz vs Kazuya | 8–15 | 34.78% |
| Knuckleheaddz vs Jin | 9–11 | 45.00% |
| Knuckleheaddz vs Asuka | 13–7 | 65.00% |
| Knuckleheaddz vs Jun | 13–6 | 68.42% |
| Knuckleheaddz vs Dragunov | 6–12 | 33.33% |
| Knuckleheaddz vs Lars | 12–6 | 66.67% |
| Knuckleheaddz vs Clive | 11–7 | 61.11% |
| Knuckleheaddz vs Devil Jin | 8–8 | 50.00% |
| Knuckleheaddz vs Leroy | 10–6 | 62.50% |
| Knuckleheaddz vs Armor King | 9–6 | 60.00% |
| Knuckleheaddz vs Bryan | 3–11 | 21.43% |
| Knuckleheaddz vs Feng | 8–6 | 57.14% |
| Knuckleheaddz vs Victor | 9–5 | 64.29% |
| Knuckleheaddz vs Paul | 6–7 | 46.15% |
| Knuckleheaddz vs Lee | 5–8 | 38.46% |
| Knuckleheaddz vs Yoshimitsu | 9–3 | 75.00% |
| Knuckleheaddz vs Leo | 8–4 | 66.67% |
| Knuckleheaddz vs Heihachi | 8–4 | 66.67% |
| Knuckleheaddz vs Alisa | 4–7 | 36.36% |
| Knuckleheaddz vs Lili | 7–3 | 70.00% |
| Knuckleheaddz vs Raven | 7–3 | 70.00% |
| Knuckleheaddz vs Zafina | 7–2 | 77.78% |
| Knuckleheaddz vs Xiaoyu | 7–1 | 87.50% |
| Knuckleheaddz vs Fahkumram | 8–0 | 100.00% |
| Knuckleheaddz vs Lidia | 4–3 | 57.14% |
| Knuckleheaddz vs Anna | 4–3 | 57.14% |
| Knuckleheaddz vs Miary Zo | 3–4 | 42.86% |
| Knuckleheaddz vs Panda | 0–4 | 0.00% |
| Knuckleheaddz vs Claudio | 0–3 | 0.00% |
| Knuckleheaddz vs Shaheen | 2–1 | 66.67% |
| Knuckleheaddz vs Jack-8 | 1–1 | 50.00% |
| Knuckleheaddz vs Nina | 1–1 | 50.00% |
| Knuckleheaddz vs Kuma | 1–0 | 100.00% |
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.