| Sumi Chao vs Kazuya | 519–444 | 53.89% |
| Sumi Chao vs Bryan | 424–427 | 49.82% |
| Sumi Chao vs Jin | 460–368 | 55.56% |
| Sumi Chao vs Hwoarang | 399–405 | 49.63% |
| Sumi Chao vs King | 348–391–1 | 47.09% |
| Sumi Chao vs Heihachi | 358–338 | 51.44% |
| Sumi Chao vs Dragunov | 266–333 | 44.41% |
| Sumi Chao vs Paul | 287–286 | 50.09% |
| Sumi Chao vs Law | 251–309 | 44.82% |
| Sumi Chao vs Steve | 258–285 | 47.51% |
| Sumi Chao vs Reina | 271–230–1 | 54.09% |
| Sumi Chao vs Lili | 189–272 | 41.00% |
| Sumi Chao vs Yoshimitsu | 233–224 | 50.98% |
| Sumi Chao vs Devil Jin | 218–216 | 50.23% |
| Sumi Chao vs Lars | 189–202 | 48.34% |
| Sumi Chao vs Lee | 189–195 | 49.22% |
| Sumi Chao vs Feng | 168–184 | 47.73% |
| Sumi Chao vs Nina | 166–161 | 50.76% |
| Sumi Chao vs Eddy | 147–171 | 46.23% |
| Sumi Chao vs Jun | 167–146 | 53.35% |
| Sumi Chao vs Xiaoyu | 182–128 | 58.71% |
| Sumi Chao vs Asuka | 149–157 | 48.69% |
| Sumi Chao vs Raven | 126–151 | 45.49% |
| Sumi Chao vs Alisa | 133–143 | 48.19% |
| Sumi Chao vs Azucena | 132–139 | 48.71% |
| Sumi Chao vs Victor | 125–133 | 48.45% |
| Sumi Chao vs Fahkumram | 130–126 | 50.78% |
| Sumi Chao vs Jack-8 | 120–127 | 48.58% |
| Sumi Chao vs Lidia | 103–127 | 44.78% |
| Sumi Chao vs Clive | 94–130–1 | 41.96% |
| Sumi Chao vs Anna | 96–114 | 45.71% |
| Sumi Chao vs Leo | 96–95 | 50.26% |
| Sumi Chao vs Armor King | 79–105 | 42.93% |
| Sumi Chao vs Claudio | 82–94 | 46.59% |
| Sumi Chao vs Leroy | 87–85 | 50.58% |
| Sumi Chao vs Zafina | 84–59 | 58.74% |
| Sumi Chao vs Shaheen | 65–66 | 49.62% |
| Sumi Chao vs Kuma | 64–47 | 57.66% |
| Sumi Chao vs Miary Zo | 34–54 | 38.64% |
| Sumi Chao vs Panda | 33–30 | 52.38% |
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.