| Slappy vs Kazuya | 38–36 | 51.35% |
| Slappy vs Jin | 28–27 | 50.91% |
| Slappy vs Reina | 24–31 | 43.64% |
| Slappy vs King | 21–30 | 41.18% |
| Slappy vs Eddy | 24–24 | 50.00% |
| Slappy vs Hwoarang | 23–21 | 52.27% |
| Slappy vs Bryan | 18–17 | 51.43% |
| Slappy vs Dragunov | 13–19 | 40.62% |
| Slappy vs Yoshimitsu | 16–14 | 53.33% |
| Slappy vs Asuka | 15–13 | 53.57% |
| Slappy vs Steve | 16–11 | 59.26% |
| Slappy vs Law | 9–17 | 34.62% |
| Slappy vs Jun | 13–13 | 50.00% |
| Slappy vs Lili | 12–13 | 48.00% |
| Slappy vs Azucena | 15–10 | 60.00% |
| Slappy vs Victor | 9–14 | 39.13% |
| Slappy vs Nina | 11–10 | 52.38% |
| Slappy vs Paul | 1–17 | 5.56% |
| Slappy vs Feng | 10–8 | 55.56% |
| Slappy vs Lars | 8–7 | 53.33% |
| Slappy vs Alisa | 8–7 | 53.33% |
| Slappy vs Xiaoyu | 4–10 | 28.57% |
| Slappy vs Devil Jin | 5–9 | 35.71% |
| Slappy vs Jack-8 | 1–11 | 8.33% |
| Slappy vs Kuma | 6–6 | 50.00% |
| Slappy vs Lee | 2–7 | 22.22% |
| Slappy vs Claudio | 5–3 | 62.50% |
| Slappy vs Raven | 5–3 | 62.50% |
| Slappy vs Leo | 0–7 | 0.00% |
| Slappy vs Leroy | 3–3 | 50.00% |
| Slappy vs Shaheen | 4–1 | 80.00% |
| Slappy 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.