| Sekkaija vs Jin | 19–41 | 31.67% |
| Sekkaija vs Reina | 24–31 | 43.64% |
| Sekkaija vs Kazuya | 19–30 | 38.78% |
| Sekkaija vs Bryan | 13–29 | 30.95% |
| Sekkaija vs King | 13–24 | 35.14% |
| Sekkaija vs Hwoarang | 12–24 | 33.33% |
| Sekkaija vs Steve | 15–19 | 44.12% |
| Sekkaija vs Paul | 12–10 | 54.55% |
| Sekkaija vs Lili | 7–15 | 31.82% |
| Sekkaija vs Jun | 5–17 | 22.73% |
| Sekkaija vs Yoshimitsu | 6–15 | 28.57% |
| Sekkaija vs Azucena | 11–10 | 52.38% |
| Sekkaija vs Dragunov | 4–16 | 20.00% |
| Sekkaija vs Eddy | 3–16 | 15.79% |
| Sekkaija vs Lee | 8–10 | 44.44% |
| Sekkaija vs Devil Jin | 5–12 | 29.41% |
| Sekkaija vs Feng | 6–11 | 35.29% |
| Sekkaija vs Law | 5–9 | 35.71% |
| Sekkaija vs Asuka | 9–5 | 64.29% |
| Sekkaija vs Alisa | 5–9 | 35.71% |
| Sekkaija vs Xiaoyu | 3–10 | 23.08% |
| Sekkaija vs Nina | 5–8 | 38.46% |
| Sekkaija vs Jack-8 | 4–6 | 40.00% |
| Sekkaija vs Lars | 4–6 | 40.00% |
| Sekkaija vs Claudio | 0–10 | 0.00% |
| Sekkaija vs Raven | 4–6 | 40.00% |
| Sekkaija vs Leo | 3–6 | 33.33% |
| Sekkaija vs Leroy | 3–6 | 33.33% |
| Sekkaija vs Shaheen | 2–6 | 25.00% |
| Sekkaija vs Kuma | 1–7 | 12.50% |
| Sekkaija vs Victor | 2–6 | 25.00% |
| Sekkaija vs Panda | 1–6 | 14.29% |
| Sekkaija vs Heihachi | 2–5 | 28.57% |
| Sekkaija vs Zafina | 3–2 | 60.00% |
| Sekkaija vs Lidia | 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.