| Siepator vs Hwoarang | 5–11 | 31.25% |
| Siepator vs King | 7–5 | 58.33% |
| Siepator vs Heihachi | 5–6 | 45.45% |
| Siepator vs Bryan | 5–4 | 55.56% |
| Siepator vs Devil Jin | 1–8 | 11.11% |
| Siepator vs Asuka | 5–3 | 62.50% |
| Siepator vs Reina | 2–4 | 33.33% |
| Siepator vs Azucena | 2–4 | 33.33% |
| Siepator vs Fahkumram | 0–6 | 0.00% |
| Siepator vs Law | 1–4 | 20.00% |
| Siepator vs Jin | 0–4 | 0.00% |
| Siepator vs Feng | 4–0 | 100.00% |
| Siepator vs Lili | 2–2 | 50.00% |
| Siepator vs Lars | 1–3 | 25.00% |
| Siepator vs Victor | 0–4 | 0.00% |
| Siepator vs Nina | 1–2 | 33.33% |
| Siepator vs Lee | 1–2 | 33.33% |
| Siepator vs Raven | 2–1 | 66.67% |
| Siepator vs Eddy | 1–2 | 33.33% |
| Siepator vs Clive | 2–1 | 66.67% |
| Siepator vs Dragunov | 0–2 | 0.00% |
| Siepator vs Lidia | 1–1 | 50.00% |
| Siepator vs Yoshimitsu | 0–1 | 0.00% |
| Siepator vs Kazuya | 0–1 | 0.00% |
| Siepator vs Jun | 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.