| Sleepy vs King | 19–8 | 70.37% |
| Sleepy vs Azucena | 13–8 | 61.90% |
| Sleepy vs Armor King | 9–9 | 50.00% |
| Sleepy vs Kazuya | 7–9 | 43.75% |
| Sleepy vs Steve | 9–7 | 56.25% |
| Sleepy vs Dragunov | 9–7 | 56.25% |
| Sleepy vs Jun | 9–7 | 56.25% |
| Sleepy vs Jin | 4–10 | 28.57% |
| Sleepy vs Heihachi | 5–5 | 50.00% |
| Sleepy vs Law | 5–4 | 55.56% |
| Sleepy vs Hwoarang | 0–8 | 0.00% |
| Sleepy vs Reina | 4–4 | 50.00% |
| Sleepy vs Bryan | 2–5 | 28.57% |
| Sleepy vs Lili | 4–3 | 57.14% |
| Sleepy vs Lars | 2–5 | 28.57% |
| Sleepy vs Paul | 2–4 | 33.33% |
| Sleepy vs Xiaoyu | 3–2 | 60.00% |
| Sleepy vs Fahkumram | 3–2 | 60.00% |
| Sleepy vs Leroy | 2–2 | 50.00% |
| Sleepy vs Lidia | 0–4 | 0.00% |
| Sleepy vs Miary Zo | 2–2 | 50.00% |
| Sleepy vs Devil Jin | 3–0 | 100.00% |
| Sleepy vs Lee | 3–0 | 100.00% |
| Sleepy vs Eddy | 3–0 | 100.00% |
| Sleepy vs Anna | 2–1 | 66.67% |
| Sleepy vs Yoshimitsu | 0–2 | 0.00% |
| Sleepy vs Jack-8 | 1–1 | 50.00% |
| Sleepy vs Shaheen | 1–1 | 50.00% |
| Sleepy vs Victor | 2–0 | 100.00% |
| Sleepy vs Asuka | 0–1 | 0.00% |
| Sleepy vs Feng | 0–1 | 0.00% |
| Sleepy vs Alisa | 0–1 | 0.00% |
| Sleepy vs Claudio | 1–0 | 100.00% |
| Sleepy vs Kuma | 0–1 | 0.00% |
| Sleepy vs Zafina | 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.