| Protein Sheikh vs Kazuya | 19–4 | 82.61% |
| Protein Sheikh vs Steve | 12–10 | 54.55% |
| Protein Sheikh vs Jin | 16–5 | 76.19% |
| Protein Sheikh vs Hwoarang | 11–5 | 68.75% |
| Protein Sheikh vs Law | 9–5 | 64.29% |
| Protein Sheikh vs Dragunov | 9–5 | 64.29% |
| Protein Sheikh vs Reina | 7–7 | 50.00% |
| Protein Sheikh vs King | 7–5 | 58.33% |
| Protein Sheikh vs Jun | 7–2 | 77.78% |
| Protein Sheikh vs Eddy | 7–2 | 77.78% |
| Protein Sheikh vs Yoshimitsu | 4–4 | 50.00% |
| Protein Sheikh vs Bryan | 3–5 | 37.50% |
| Protein Sheikh vs Lili | 5–3 | 62.50% |
| Protein Sheikh vs Lars | 3–5 | 37.50% |
| Protein Sheikh vs Azucena | 5–3 | 62.50% |
| Protein Sheikh vs Devil Jin | 5–2 | 71.43% |
| Protein Sheikh vs Heihachi | 5–2 | 71.43% |
| Protein Sheikh vs Armor King | 5–2 | 71.43% |
| Protein Sheikh vs Xiaoyu | 5–1 | 83.33% |
| Protein Sheikh vs Jack-8 | 3–3 | 50.00% |
| Protein Sheikh vs Feng | 3–3 | 50.00% |
| Protein Sheikh vs Asuka | 3–2 | 60.00% |
| Protein Sheikh vs Leo | 2–3 | 40.00% |
| Protein Sheikh vs Raven | 2–3 | 40.00% |
| Protein Sheikh vs Lidia | 2–3 | 40.00% |
| Protein Sheikh vs Paul | 1–3 | 25.00% |
| Protein Sheikh vs Nina | 3–1 | 75.00% |
| Protein Sheikh vs Victor | 4–0 | 100.00% |
| Protein Sheikh vs Alisa | 1–1 | 50.00% |
| Protein Sheikh vs Shaheen | 2–0 | 100.00% |
| Protein Sheikh vs Lee | 2–0 | 100.00% |
| Protein Sheikh vs Leroy | 2–0 | 100.00% |
| Protein Sheikh vs Kuma | 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.