| Sekko vs Jin | 7–7 | 50.00% |
| Sekko vs Miary Zo | 8–2 | 80.00% |
| Sekko vs Law | 7–2 | 77.78% |
| Sekko vs Yoshimitsu | 5–2 | 71.43% |
| Sekko vs Hwoarang | 3–4 | 42.86% |
| Sekko vs Steve | 2–5 | 28.57% |
| Sekko vs Jun | 3–3 | 50.00% |
| Sekko vs Kazuya | 3–2 | 60.00% |
| Sekko vs Dragunov | 3–2 | 60.00% |
| Sekko vs Kuma | 3–2 | 60.00% |
| Sekko vs Lidia | 4–1 | 80.00% |
| Sekko vs Armor King | 3–2 | 60.00% |
| Sekko vs King | 2–2 | 50.00% |
| Sekko vs Bryan | 3–1 | 75.00% |
| Sekko vs Devil Jin | 3–1 | 75.00% |
| Sekko vs Feng | 2–2 | 50.00% |
| Sekko vs Nina | 2–2 | 50.00% |
| Sekko vs Zafina | 2–2 | 50.00% |
| Sekko vs Azucena | 2–2 | 50.00% |
| Sekko vs Victor | 2–2 | 50.00% |
| Sekko vs Jack-8 | 1–2 | 33.33% |
| Sekko vs Lili | 3–0 | 100.00% |
| Sekko vs Alisa | 1–2 | 33.33% |
| Sekko vs Reina | 3–0 | 100.00% |
| Sekko vs Heihachi | 1–2 | 33.33% |
| Sekko vs Paul | 0–2 | 0.00% |
| Sekko vs Claudio | 0–2 | 0.00% |
| Sekko vs Lee | 0–2 | 0.00% |
| Sekko vs Raven | 1–1 | 50.00% |
| Sekko vs Eddy | 2–0 | 100.00% |
| Sekko vs Clive | 2–0 | 100.00% |
| Sekko vs Lars | 1–0 | 100.00% |
| Sekko vs Leroy | 0–1 | 0.00% |
| Sekko vs Fahkumram | 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.