| Sleepy vs King | 10–13 | 43.48% |
| Sleepy vs Kazuya | 10–8 | 55.56% |
| Sleepy vs Lidia | 7–11 | 38.89% |
| Sleepy vs Jin | 6–7 | 46.15% |
| Sleepy vs Azucena | 5–8 | 38.46% |
| Sleepy vs Lee | 6–6 | 50.00% |
| Sleepy vs Hwoarang | 5–6 | 45.45% |
| Sleepy vs Steve | 6–5 | 54.55% |
| Sleepy vs Zafina | 5–6 | 45.45% |
| Sleepy vs Jack-8 | 5–5 | 50.00% |
| Sleepy vs Kuma | 2–8 | 20.00% |
| Sleepy vs Asuka | 6–3 | 66.67% |
| Sleepy vs Victor | 5–4 | 55.56% |
| Sleepy vs Lili | 3–5 | 37.50% |
| Sleepy vs Reina | 5–3 | 62.50% |
| Sleepy vs Claudio | 1–5 | 16.67% |
| Sleepy vs Bryan | 2–3 | 40.00% |
| Sleepy vs Leo | 1–4 | 20.00% |
| Sleepy vs Nina | 1–4 | 20.00% |
| Sleepy vs Leroy | 3–2 | 60.00% |
| Sleepy vs Law | 2–2 | 50.00% |
| Sleepy vs Dragunov | 1–3 | 25.00% |
| Sleepy vs Xiaoyu | 1–2 | 33.33% |
| Sleepy vs Devil Jin | 2–1 | 66.67% |
| Sleepy vs Feng | 2–1 | 66.67% |
| Sleepy vs Alisa | 2–1 | 66.67% |
| Sleepy vs Raven | 1–2 | 33.33% |
| Sleepy vs Yoshimitsu | 1–1 | 50.00% |
| Sleepy vs Shaheen | 2–0 | 100.00% |
| Sleepy vs Jun | 1–1 | 50.00% |
| Sleepy vs Lars | 1–0 | 100.00% |
| Sleepy vs Panda | 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.