| Seppukuma vs King | 32–62 | 34.04% |
| Seppukuma vs Kazuya | 39–33 | 54.17% |
| Seppukuma vs Heihachi | 33–36 | 47.83% |
| Seppukuma vs Jin | 26–38 | 40.62% |
| Seppukuma vs Dragunov | 20–41 | 32.79% |
| Seppukuma vs Reina | 32–25 | 56.14% |
| Seppukuma vs Steve | 29–27 | 51.79% |
| Seppukuma vs Armor King | 19–31 | 38.00% |
| Seppukuma vs Bryan | 22–27 | 44.90% |
| Seppukuma vs Clive | 19–20 | 48.72% |
| Seppukuma vs Yoshimitsu | 13–23 | 36.11% |
| Seppukuma vs Azucena | 20–15 | 57.14% |
| Seppukuma vs Fahkumram | 18–17 | 51.43% |
| Seppukuma vs Law | 14–19 | 42.42% |
| Seppukuma vs Hwoarang | 13–19 | 40.62% |
| Seppukuma vs Xiaoyu | 21–11 | 65.62% |
| Seppukuma vs Asuka | 14–16 | 46.67% |
| Seppukuma vs Lili | 13–17 | 43.33% |
| Seppukuma vs Lee | 15–14 | 51.72% |
| Seppukuma vs Paul | 11–15 | 42.31% |
| Seppukuma vs Lars | 12–14 | 46.15% |
| Seppukuma vs Jun | 12–12 | 50.00% |
| Seppukuma vs Devil Jin | 14–8 | 63.64% |
| Seppukuma vs Leo | 9–13 | 40.91% |
| Seppukuma vs Eddy | 14–8 | 63.64% |
| Seppukuma vs Miary Zo | 11–11 | 50.00% |
| Seppukuma vs Alisa | 9–11 | 45.00% |
| Seppukuma vs Lidia | 9–11 | 45.00% |
| Seppukuma vs Victor | 8–10 | 44.44% |
| Seppukuma vs Nina | 9–7 | 56.25% |
| Seppukuma vs Shaheen | 12–3 | 80.00% |
| Seppukuma vs Feng | 2–10 | 16.67% |
| Seppukuma vs Kuma | 3–7 | 30.00% |
| Seppukuma vs Leroy | 7–3 | 70.00% |
| Seppukuma vs Jack-8 | 2–7 | 22.22% |
| Seppukuma vs Claudio | 5–3 | 62.50% |
| Seppukuma vs Zafina | 6–2 | 75.00% |
| Seppukuma vs Raven | 3–5 | 37.50% |
| Seppukuma vs Anna | 2–2 | 50.00% |
| Seppukuma vs Panda | 1–0 | 100.00% |
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.