| Seira vs King | 9–3 | 75.00% |
| Seira vs Hwoarang | 7–2 | 77.78% |
| Seira vs Paul | 5–3 | 62.50% |
| Seira vs Lili | 5–3 | 62.50% |
| Seira vs Reina | 6–2 | 75.00% |
| Seira vs Steve | 7–0 | 100.00% |
| Seira vs Jin | 5–1 | 83.33% |
| Seira vs Kazuya | 6–0 | 100.00% |
| Seira vs Alisa | 5–1 | 83.33% |
| Seira vs Victor | 5–1 | 83.33% |
| Seira vs Asuka | 3–1 | 75.00% |
| Seira vs Jun | 3–1 | 75.00% |
| Seira vs Yoshimitsu | 3–0 | 100.00% |
| Seira vs Dragunov | 2–1 | 66.67% |
| Seira vs Leroy | 3–0 | 100.00% |
| Seira vs Law | 2–0 | 100.00% |
| Seira vs Xiaoyu | 0–2 | 0.00% |
| Seira vs Bryan | 1–1 | 50.00% |
| Seira vs Devil Jin | 1–1 | 50.00% |
| Seira vs Leo | 1–1 | 50.00% |
| Seira vs Shaheen | 1–1 | 50.00% |
| Seira vs Nina | 2–0 | 100.00% |
| Seira vs Kuma | 0–2 | 0.00% |
| Seira vs Azucena | 2–0 | 100.00% |
| Seira vs Lars | 0–1 | 0.00% |
| Seira vs Lee | 1–0 | 100.00% |
| Seira vs Zafina | 0–1 | 0.00% |
| Seira vs Heihachi | 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.