| Siah vs Jin | 539–472 | 53.31% |
| Siah vs Hwoarang | 550–412 | 57.17% |
| Siah vs Bryan | 529–414 | 56.10% |
| Siah vs Kazuya | 466–413 | 53.01% |
| Siah vs King | 473–381 | 55.39% |
| Siah vs Steve | 395–428 | 48.00% |
| Siah vs Law | 423–382 | 52.55% |
| Siah vs Heihachi | 357–364 | 49.51% |
| Siah vs Lars | 339–335 | 50.30% |
| Siah vs Paul | 388–261 | 59.78% |
| Siah vs Lili | 367–274 | 57.25% |
| Siah vs Lee | 333–308 | 51.95% |
| Siah vs Devil Jin | 344–295 | 53.83% |
| Siah vs Dragunov | 332–302–1 | 52.37% |
| Siah vs Reina | 323–278 | 53.74% |
| Siah vs Yoshimitsu | 290–292 | 49.83% |
| Siah vs Raven | 261–242 | 51.89% |
| Siah vs Feng | 263–236 | 52.71% |
| Siah vs Asuka | 255–239 | 51.62% |
| Siah vs Leo | 281–211 | 57.11% |
| Siah vs Jun | 224–222 | 50.22% |
| Siah vs Nina | 234–210 | 52.70% |
| Siah vs Azucena | 213–229 | 48.19% |
| Siah vs Armor King | 220–195 | 53.01% |
| Siah vs Xiaoyu | 201–205 | 49.51% |
| Siah vs Lidia | 221–184 | 54.57% |
| Siah vs Zafina | 196–196 | 50.00% |
| Siah vs Eddy | 180–208 | 46.39% |
| Siah vs Jack-8 | 206–179 | 53.51% |
| Siah vs Claudio | 177–195 | 47.58% |
| Siah vs Leroy | 222–148 | 60.00% |
| Siah vs Clive | 181–185 | 49.45% |
| Siah vs Alisa | 193–168 | 53.46% |
| Siah vs Shaheen | 166–165 | 50.15% |
| Siah vs Victor | 140–168–1 | 45.45% |
| Siah vs Fahkumram | 156–137 | 53.24% |
| Siah vs Anna | 119–122 | 49.38% |
| Siah vs Kuma | 90–129 | 41.10% |
| Siah vs Panda | 45–60 | 42.86% |
| Siah vs Miary Zo | 36–43 | 45.57% |
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.