| Seif78 vs Jin | 99–115 | 46.26% |
| Seif78 vs Kazuya | 76–85 | 47.20% |
| Seif78 vs Hwoarang | 76–82 | 48.10% |
| Seif78 vs King | 72–76 | 48.65% |
| Seif78 vs Steve | 88–57 | 60.69% |
| Seif78 vs Law | 55–77 | 41.67% |
| Seif78 vs Eddy | 58–40 | 59.18% |
| Seif78 vs Bryan | 38–49 | 43.68% |
| Seif78 vs Lili | 42–43 | 49.41% |
| Seif78 vs Reina | 39–45 | 46.43% |
| Seif78 vs Dragunov | 29–47 | 38.16% |
| Seif78 vs Jun | 37–38 | 49.33% |
| Seif78 vs Paul | 37–37 | 50.00% |
| Seif78 vs Yoshimitsu | 32–40 | 44.44% |
| Seif78 vs Heihachi | 24–43 | 35.82% |
| Seif78 vs Devil Jin | 25–35 | 41.67% |
| Seif78 vs Azucena | 30–30 | 50.00% |
| Seif78 vs Victor | 21–38 | 35.59% |
| Seif78 vs Asuka | 24–31 | 43.64% |
| Seif78 vs Nina | 22–31 | 41.51% |
| Seif78 vs Lidia | 19–34 | 35.85% |
| Seif78 vs Lars | 20–26 | 43.48% |
| Seif78 vs Armor King | 21–25 | 45.65% |
| Seif78 vs Alisa | 16–28 | 36.36% |
| Seif78 vs Lee | 18–26 | 40.91% |
| Seif78 vs Clive | 15–26 | 36.59% |
| Seif78 vs Xiaoyu | 17–21 | 44.74% |
| Seif78 vs Leroy | 16–17 | 48.48% |
| Seif78 vs Jack-8 | 16–16 | 50.00% |
| Seif78 vs Feng | 14–17 | 45.16% |
| Seif78 vs Leo | 12–11 | 52.17% |
| Seif78 vs Raven | 8–10 | 44.44% |
| Seif78 vs Kuma | 7–10 | 41.18% |
| Seif78 vs Claudio | 5–10 | 33.33% |
| Seif78 vs Shaheen | 4–11 | 26.67% |
| Seif78 vs Zafina | 4–8 | 33.33% |
| Seif78 vs Anna | 4–8 | 33.33% |
| Seif78 vs Fahkumram | 1–6 | 14.29% |
| Seif78 vs Miary Zo | 2–4 | 33.33% |
| Seif78 vs Panda | 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.