| Sien vs Hwoarang | 103–85 | 54.79% |
| Sien vs Kazuya | 98–70 | 58.33% |
| Sien vs Paul | 80–74 | 51.95% |
| Sien vs Dragunov | 73–77 | 48.67% |
| Sien vs Bryan | 63–74 | 45.99% |
| Sien vs Jin | 60–61 | 49.59% |
| Sien vs King | 49–70 | 41.18% |
| Sien vs Reina | 69–46 | 60.00% |
| Sien vs Asuka | 42–51–1 | 45.16% |
| Sien vs Lili | 46–43 | 51.69% |
| Sien vs Law | 32–52 | 38.10% |
| Sien vs Victor | 37–47 | 44.05% |
| Sien vs Steve | 30–45 | 40.00% |
| Sien vs Claudio | 32–40 | 44.44% |
| Sien vs Yoshimitsu | 38–33 | 53.52% |
| Sien vs Jun | 28–43 | 39.44% |
| Sien vs Feng | 31–36 | 46.27% |
| Sien vs Heihachi | 33–34 | 49.25% |
| Sien vs Lidia | 35–28 | 55.56% |
| Sien vs Azucena | 23–35 | 39.66% |
| Sien vs Devil Jin | 21–29 | 42.00% |
| Sien vs Lars | 25–25 | 50.00% |
| Sien vs Lee | 19–30 | 38.78% |
| Sien vs Alisa | 28–18 | 60.87% |
| Sien vs Nina | 24–21 | 53.33% |
| Sien vs Leroy | 22–23 | 48.89% |
| Sien vs Shaheen | 17–22 | 43.59% |
| Sien vs Leo | 16–22 | 42.11% |
| Sien vs Xiaoyu | 19–18 | 51.35% |
| Sien vs Raven | 16–20 | 44.44% |
| Sien vs Eddy | 17–19 | 47.22% |
| Sien vs Jack-8 | 14–21 | 40.00% |
| Sien vs Kuma | 11–14 | 44.00% |
| Sien vs Zafina | 8–11 | 42.11% |
| Sien vs Clive | 7–9 | 43.75% |
| Sien vs Panda | 6–5 | 54.55% |
| Sien vs Fahkumram | 5–5 | 50.00% |
| Sien vs Miary Zo | 6–2 | 75.00% |
| Sien vs Anna | 1–4 | 20.00% |
| Sien vs Armor King | 4–0 | 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.