| Siimba vs Reina | 38–24 | 61.29% |
| Siimba vs Eddy | 30–31 | 49.18% |
| Siimba vs Jin | 31–20 | 60.78% |
| Siimba vs Kazuya | 19–29 | 39.58% |
| Siimba vs Steve | 29–18 | 61.70% |
| Siimba vs King | 24–17 | 58.54% |
| Siimba vs Bryan | 22–18 | 55.00% |
| Siimba vs Paul | 22–14 | 61.11% |
| Siimba vs Azucena | 17–16 | 51.52% |
| Siimba vs Law | 21–11 | 65.62% |
| Siimba vs Leo | 17–13 | 56.67% |
| Siimba vs Lidia | 18–10 | 64.29% |
| Siimba vs Hwoarang | 14–12 | 53.85% |
| Siimba vs Raven | 12–13 | 48.00% |
| Siimba vs Lili | 7–14 | 33.33% |
| Siimba vs Yoshimitsu | 14–6 | 70.00% |
| Siimba vs Devil Jin | 9–10 | 47.37% |
| Siimba vs Lee | 13–6 | 68.42% |
| Siimba vs Nina | 11–7 | 61.11% |
| Siimba vs Xiaoyu | 7–10 | 41.18% |
| Siimba vs Dragunov | 6–11 | 35.29% |
| Siimba vs Jun | 6–9 | 40.00% |
| Siimba vs Lars | 11–3 | 78.57% |
| Siimba vs Heihachi | 8–6 | 57.14% |
| Siimba vs Miary Zo | 11–3 | 78.57% |
| Siimba vs Asuka | 5–8 | 38.46% |
| Siimba vs Alisa | 8–5 | 61.54% |
| Siimba vs Leroy | 8–4 | 66.67% |
| Siimba vs Jack-8 | 5–5 | 50.00% |
| Siimba vs Kuma | 6–4 | 60.00% |
| Siimba vs Claudio | 5–4 | 55.56% |
| Siimba vs Victor | 5–4 | 55.56% |
| Siimba vs Feng | 3–4 | 42.86% |
| Siimba vs Clive | 4–2 | 66.67% |
| Siimba vs Armor King | 1–5 | 16.67% |
| Siimba vs Shaheen | 4–1 | 80.00% |
| Siimba vs Anna | 4–1 | 80.00% |
| Siimba vs Zafina | 2–1 | 66.67% |
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.