| Sumomasa vs King | 11–4 | 73.33% |
| Sumomasa vs Law | 7–5 | 58.33% |
| Sumomasa vs Kazuya | 3–8 | 27.27% |
| Sumomasa vs Yoshimitsu | 9–1 | 90.00% |
| Sumomasa vs Jin | 7–3 | 70.00% |
| Sumomasa vs Steve | 8–1 | 88.89% |
| Sumomasa vs Reina | 4–5 | 44.44% |
| Sumomasa vs Dragunov | 4–2–1 | 66.67% |
| Sumomasa vs Hwoarang | 3–3 | 50.00% |
| Sumomasa vs Lili | 5–1 | 83.33% |
| Sumomasa vs Azucena | 3–3 | 50.00% |
| Sumomasa vs Eddy | 4–2 | 66.67% |
| Sumomasa vs Paul | 4–1 | 80.00% |
| Sumomasa vs Jack-8 | 3–2 | 60.00% |
| Sumomasa vs Asuka | 2–3 | 40.00% |
| Sumomasa vs Devil Jin | 4–1 | 80.00% |
| Sumomasa vs Leroy | 3–2 | 60.00% |
| Sumomasa vs Jun | 0–5 | 0.00% |
| Sumomasa vs Feng | 1–3 | 25.00% |
| Sumomasa vs Lee | 3–1 | 75.00% |
| Sumomasa vs Xiaoyu | 0–3 | 0.00% |
| Sumomasa vs Lars | 2–1 | 66.67% |
| Sumomasa vs Victor | 2–1 | 66.67% |
| Sumomasa vs Bryan | 0–2 | 0.00% |
| Sumomasa vs Alisa | 1–0 | 100.00% |
| Sumomasa vs Shaheen | 0–1 | 0.00% |
| Sumomasa vs Nina | 1–0 | 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.