| Siapasi vs King | 18–2 | 90.00% |
| Siapasi vs Jin | 16–1 | 94.12% |
| Siapasi vs Bryan | 11–3 | 78.57% |
| Siapasi vs Kazuya | 9–5 | 64.29% |
| Siapasi vs Azucena | 8–4 | 66.67% |
| Siapasi vs Asuka | 8–3 | 72.73% |
| Siapasi vs Reina | 6–4 | 60.00% |
| Siapasi vs Steve | 6–3 | 66.67% |
| Siapasi vs Feng | 6–3 | 66.67% |
| Siapasi vs Claudio | 6–3 | 66.67% |
| Siapasi vs Xiaoyu | 5–2 | 71.43% |
| Siapasi vs Devil Jin | 7–0 | 100.00% |
| Siapasi vs Victor | 7–0 | 100.00% |
| Siapasi vs Lili | 5–1 | 83.33% |
| Siapasi vs Lee | 3–3 | 50.00% |
| Siapasi vs Paul | 4–1 | 80.00% |
| Siapasi vs Yoshimitsu | 3–2 | 60.00% |
| Siapasi vs Dragunov | 4–0 | 100.00% |
| Siapasi vs Leo | 2–2 | 50.00% |
| Siapasi vs Kuma | 4–0 | 100.00% |
| Siapasi vs Zafina | 4–0 | 100.00% |
| Siapasi vs Fahkumram | 2–2 | 50.00% |
| Siapasi vs Eddy | 1–2 | 33.33% |
| Siapasi vs Jack-8 | 0–2 | 0.00% |
| Siapasi vs Lars | 2–0 | 100.00% |
| Siapasi vs Shaheen | 2–0 | 100.00% |
| Siapasi vs Clive | 0–2 | 0.00% |
| Siapasi vs Law | 1–0 | 100.00% |
| Siapasi vs Hwoarang | 0–1 | 0.00% |
| Siapasi vs Alisa | 1–0 | 100.00% |
| Siapasi vs Nina | 1–0 | 100.00% |
| Siapasi vs Leroy | 1–0 | 100.00% |
| Siapasi vs Raven | 1–0 | 100.00% |
| Siapasi vs Heihachi | 1–0 | 100.00% |
| Siapasi vs Armor King | 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.