| Siimooss vs Reina | 42–41 | 50.60% |
| Siimooss vs King | 39–43 | 47.56% |
| Siimooss vs Jin | 32–47 | 40.51% |
| Siimooss vs Heihachi | 16–35 | 31.37% |
| Siimooss vs Dragunov | 22–27 | 44.90% |
| Siimooss vs Kazuya | 18–29 | 38.30% |
| Siimooss vs Hwoarang | 20–22 | 47.62% |
| Siimooss vs Steve | 18–23 | 43.90% |
| Siimooss vs Clive | 16–20 | 44.44% |
| Siimooss vs Nina | 15–19 | 44.12% |
| Siimooss vs Law | 12–20 | 37.50% |
| Siimooss vs Lars | 12–20 | 37.50% |
| Siimooss vs Victor | 16–16 | 50.00% |
| Siimooss vs Lee | 13–18 | 41.94% |
| Siimooss vs Jun | 15–16 | 48.39% |
| Siimooss vs Bryan | 9–20 | 31.03% |
| Siimooss vs Lili | 13–16 | 44.83% |
| Siimooss vs Eddy | 11–15 | 42.31% |
| Siimooss vs Paul | 4–20 | 16.67% |
| Siimooss vs Yoshimitsu | 16–6 | 72.73% |
| Siimooss vs Asuka | 8–10 | 44.44% |
| Siimooss vs Lidia | 13–4 | 76.47% |
| Siimooss vs Leo | 5–10 | 33.33% |
| Siimooss vs Leroy | 8–7 | 53.33% |
| Siimooss vs Jack-8 | 4–10 | 28.57% |
| Siimooss vs Azucena | 7–7 | 50.00% |
| Siimooss vs Devil Jin | 0–13 | 0.00% |
| Siimooss vs Xiaoyu | 8–4 | 66.67% |
| Siimooss vs Kuma | 4–8 | 33.33% |
| Siimooss vs Feng | 6–5 | 54.55% |
| Siimooss vs Alisa | 4–7 | 36.36% |
| Siimooss vs Shaheen | 4–7 | 36.36% |
| Siimooss vs Claudio | 3–4 | 42.86% |
| Siimooss vs Zafina | 4–3 | 57.14% |
| Siimooss vs Raven | 3–4 | 42.86% |
| Siimooss vs Panda | 2–2 | 50.00% |
| Siimooss vs Armor King | 0–1 | 0.00% |
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.