| SeiRyū vs Reina | 176–227 | 43.67% |
| SeiRyū vs King | 144–220 | 39.56% |
| SeiRyū vs Kazuya | 129–218 | 37.18% |
| SeiRyū vs Jin | 87–203 | 30.00% |
| SeiRyū vs Heihachi | 75–188 | 28.52% |
| SeiRyū vs Steve | 97–159 | 37.89% |
| SeiRyū vs Hwoarang | 86–146 | 37.07% |
| SeiRyū vs Bryan | 51–150 | 25.37% |
| SeiRyū vs Law | 69–124 | 35.75% |
| SeiRyū vs Lili | 76–116 | 39.58% |
| SeiRyū vs Asuka | 59–112 | 34.50% |
| SeiRyū vs Dragunov | 60–100 | 37.50% |
| SeiRyū vs Paul | 41–116 | 26.11% |
| SeiRyū vs Yoshimitsu | 55–101 | 35.26% |
| SeiRyū vs Jun | 69–75 | 47.92% |
| SeiRyū vs Lidia | 40–79 | 33.61% |
| SeiRyū vs Clive | 37–72 | 33.94% |
| SeiRyū vs Victor | 39–68 | 36.45% |
| SeiRyū vs Xiaoyu | 39–66 | 37.14% |
| SeiRyū vs Eddy | 27–78 | 25.71% |
| SeiRyū vs Lee | 30–72 | 29.41% |
| SeiRyū vs Devil Jin | 27–71 | 27.55% |
| SeiRyū vs Lars | 35–63 | 35.71% |
| SeiRyū vs Azucena | 33–63 | 34.38% |
| SeiRyū vs Nina | 40–49 | 44.94% |
| SeiRyū vs Alisa | 27–60 | 31.03% |
| SeiRyū vs Leo | 33–48 | 40.74% |
| SeiRyū vs Leroy | 23–50 | 31.51% |
| SeiRyū vs Claudio | 13–57 | 18.57% |
| SeiRyū vs Kuma | 20–49 | 28.99% |
| SeiRyū vs Raven | 26–40 | 39.39% |
| SeiRyū vs Jack-8 | 17–42 | 28.81% |
| SeiRyū vs Feng | 13–35 | 27.08% |
| SeiRyū vs Shaheen | 21–27 | 43.75% |
| SeiRyū vs Armor King | 7–35 | 16.67% |
| SeiRyū vs Zafina | 16–22 | 42.11% |
| SeiRyū vs Anna | 8–26 | 23.53% |
| SeiRyū vs Panda | 8–17 | 32.00% |
| SeiRyū vs Fahkumram | 2–23 | 8.00% |
| SeiRyū vs Miary Zo | 4–21 | 16.00% |
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.