| Sleepy vs King | 28–24 | 53.85% |
| Sleepy vs Kazuya | 32–16 | 66.67% |
| Sleepy vs Heihachi | 26–22 | 54.17% |
| Sleepy vs Dragunov | 21–12 | 63.64% |
| Sleepy vs Reina | 15–15 | 50.00% |
| Sleepy vs Bryan | 15–14 | 51.72% |
| Sleepy vs Hwoarang | 17–11 | 60.71% |
| Sleepy vs Steve | 16–11 | 59.26% |
| Sleepy vs Lili | 16–9 | 64.00% |
| Sleepy vs Law | 14–10 | 58.33% |
| Sleepy vs Lidia | 11–11 | 50.00% |
| Sleepy vs Paul | 9–10 | 47.37% |
| Sleepy vs Victor | 8–9 | 47.06% |
| Sleepy vs Eddy | 9–8 | 52.94% |
| Sleepy vs Asuka | 11–5 | 68.75% |
| Sleepy vs Yoshimitsu | 8–7 | 53.33% |
| Sleepy vs Jin | 9–6 | 60.00% |
| Sleepy vs Devil Jin | 6–8 | 42.86% |
| Sleepy vs Alisa | 9–5 | 64.29% |
| Sleepy vs Kuma | 8–5 | 61.54% |
| Sleepy vs Feng | 5–7 | 41.67% |
| Sleepy vs Xiaoyu | 4–7 | 36.36% |
| Sleepy vs Lee | 8–3 | 72.73% |
| Sleepy vs Jun | 6–5 | 54.55% |
| Sleepy vs Nina | 2–8 | 20.00% |
| Sleepy vs Lars | 6–2 | 75.00% |
| Sleepy vs Zafina | 5–3 | 62.50% |
| Sleepy vs Azucena | 3–5 | 37.50% |
| Sleepy vs Raven | 3–4 | 42.86% |
| Sleepy vs Leo | 0–6 | 0.00% |
| Sleepy vs Jack-8 | 5–0 | 100.00% |
| Sleepy vs Shaheen | 0–3 | 0.00% |
| Sleepy vs Leroy | 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.