| Sleepy vs King | 7–13 | 35.00% |
| Sleepy vs Reina | 6–10 | 37.50% |
| Sleepy vs Law | 6–9 | 40.00% |
| Sleepy vs Lili | 4–11 | 26.67% |
| Sleepy vs Steve | 6–8 | 42.86% |
| Sleepy vs Heihachi | 3–10 | 23.08% |
| Sleepy vs Azucena | 6–5 | 54.55% |
| Sleepy vs Victor | 1–9 | 10.00% |
| Sleepy vs Lidia | 7–3 | 70.00% |
| Sleepy vs Paul | 4–5 | 44.44% |
| Sleepy vs Jin | 3–6 | 33.33% |
| Sleepy vs Hwoarang | 4–4 | 50.00% |
| Sleepy vs Eddy | 3–5 | 37.50% |
| Sleepy vs Devil Jin | 0–6 | 0.00% |
| Sleepy vs Bryan | 2–3 | 40.00% |
| Sleepy vs Jack-8 | 0–5 | 0.00% |
| Sleepy vs Dragunov | 2–3 | 40.00% |
| Sleepy vs Leo | 2–3 | 40.00% |
| Sleepy vs Alisa | 2–3 | 40.00% |
| Sleepy vs Asuka | 1–3 | 25.00% |
| Sleepy vs Lars | 1–3 | 25.00% |
| Sleepy vs Lee | 0–4 | 0.00% |
| Sleepy vs Kuma | 0–4 | 0.00% |
| Sleepy vs Yoshimitsu | 1–2 | 33.33% |
| Sleepy vs Kazuya | 2–1 | 66.67% |
| Sleepy vs Zafina | 2–1 | 66.67% |
| Sleepy vs Leroy | 1–2 | 33.33% |
| Sleepy vs Jun | 0–3 | 0.00% |
| Sleepy vs Xiaoyu | 0–2 | 0.00% |
| Sleepy vs Nina | 1–1 | 50.00% |
| Sleepy vs Raven | 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.