| Sumguey vs Hwoarang | 14–24 | 36.84% |
| Sumguey vs Jin | 19–14 | 57.58% |
| Sumguey vs Reina | 15–12 | 55.56% |
| Sumguey vs Yoshimitsu | 6–17 | 26.09% |
| Sumguey vs Eddy | 6–16 | 27.27% |
| Sumguey vs King | 13–8 | 61.90% |
| Sumguey vs Bryan | 12–9 | 57.14% |
| Sumguey vs Azucena | 5–16 | 23.81% |
| Sumguey vs Lili | 10–9 | 52.63% |
| Sumguey vs Kazuya | 10–8 | 55.56% |
| Sumguey vs Law | 7–9 | 43.75% |
| Sumguey vs Dragunov | 4–12 | 25.00% |
| Sumguey vs Lee | 6–10 | 37.50% |
| Sumguey vs Jun | 10–6 | 62.50% |
| Sumguey vs Asuka | 8–7 | 53.33% |
| Sumguey vs Xiaoyu | 6–7 | 46.15% |
| Sumguey vs Steve | 7–5 | 58.33% |
| Sumguey vs Heihachi | 4–8 | 33.33% |
| Sumguey vs Jack-8 | 4–6 | 40.00% |
| Sumguey vs Devil Jin | 3–5 | 37.50% |
| Sumguey vs Lars | 3–5 | 37.50% |
| Sumguey vs Alisa | 3–5 | 37.50% |
| Sumguey vs Nina | 4–4 | 50.00% |
| Sumguey vs Victor | 4–4 | 50.00% |
| Sumguey vs Paul | 2–5 | 28.57% |
| Sumguey vs Feng | 4–3 | 57.14% |
| Sumguey vs Zafina | 0–6 | 0.00% |
| Sumguey vs Leroy | 1–5 | 16.67% |
| Sumguey vs Leo | 2–3 | 40.00% |
| Sumguey vs Lidia | 2–2 | 50.00% |
| Sumguey vs Kuma | 0–3 | 0.00% |
| Sumguey vs Claudio | 2–0 | 100.00% |
| Sumguey vs Panda | 0–2 | 0.00% |
| Sumguey vs Raven | 2–0 | 100.00% |
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.