| Seira vs Jin | 126–100 | 55.75% |
| Seira vs Kazuya | 112–108 | 50.91% |
| Seira vs Dragunov | 104–83 | 55.61% |
| Seira vs Bryan | 64–98 | 39.51% |
| Seira vs Reina | 82–75 | 52.23% |
| Seira vs King | 73–68 | 51.77% |
| Seira vs Heihachi | 75–56 | 57.25% |
| Seira vs Yoshimitsu | 60–69 | 46.51% |
| Seira vs Lee | 65–50 | 56.52% |
| Seira vs Devil Jin | 49–60 | 44.95% |
| Seira vs Steve | 44–57 | 43.56% |
| Seira vs Paul | 49–51 | 49.00% |
| Seira vs Asuka | 44–54 | 44.90% |
| Seira vs Lili | 43–49 | 46.74% |
| Seira vs Victor | 49–40 | 55.06% |
| Seira vs Law | 40–39 | 50.63% |
| Seira vs Hwoarang | 34–41 | 45.33% |
| Seira vs Jun | 32–38 | 45.71% |
| Seira vs Lars | 28–38 | 42.42% |
| Seira vs Feng | 29–35 | 45.31% |
| Seira vs Armor King | 31–29 | 51.67% |
| Seira vs Clive | 29–30 | 49.15% |
| Seira vs Xiaoyu | 25–32 | 43.86% |
| Seira vs Alisa | 29–23 | 55.77% |
| Seira vs Leroy | 21–29 | 42.00% |
| Seira vs Nina | 25–24 | 51.02% |
| Seira vs Jack-8 | 23–25 | 47.92% |
| Seira vs Eddy | 22–22 | 50.00% |
| Seira vs Azucena | 15–28 | 34.88% |
| Seira vs Lidia | 27–16 | 62.79% |
| Seira vs Leo | 24–18 | 57.14% |
| Seira vs Claudio | 17–18 | 48.57% |
| Seira vs Shaheen | 10–25 | 28.57% |
| Seira vs Zafina | 12–17 | 41.38% |
| Seira vs Anna | 14–13 | 51.85% |
| Seira vs Raven | 14–10 | 58.33% |
| Seira vs Kuma | 3–20 | 13.04% |
| Seira vs Fahkumram | 6–9 | 40.00% |
| Seira vs Panda | 2–5 | 28.57% |
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.