| Sijmonger vs Yoshimitsu | 8–5 | 61.54% |
| Sijmonger vs Steve | 8–5 | 61.54% |
| Sijmonger vs Law | 5–7 | 41.67% |
| Sijmonger vs Asuka | 1–11 | 8.33% |
| Sijmonger vs Reina | 6–6 | 50.00% |
| Sijmonger vs King | 1–9 | 10.00% |
| Sijmonger vs Jin | 3–7 | 30.00% |
| Sijmonger vs Dragunov | 2–8 | 20.00% |
| Sijmonger vs Eddy | 4–6 | 40.00% |
| Sijmonger vs Kazuya | 2–6 | 25.00% |
| Sijmonger vs Lars | 5–2 | 71.43% |
| Sijmonger vs Victor | 2–5 | 28.57% |
| Sijmonger vs Lidia | 0–7 | 0.00% |
| Sijmonger vs Hwoarang | 1–5 | 16.67% |
| Sijmonger vs Bryan | 0–5 | 0.00% |
| Sijmonger vs Devil Jin | 5–0 | 100.00% |
| Sijmonger vs Alisa | 3–2 | 60.00% |
| Sijmonger vs Shaheen | 1–4 | 20.00% |
| Sijmonger vs Jun | 1–4 | 20.00% |
| Sijmonger vs Paul | 1–3 | 25.00% |
| Sijmonger vs Lee | 3–1 | 75.00% |
| Sijmonger vs Panda | 0–4 | 0.00% |
| Sijmonger vs Azucena | 3–1 | 75.00% |
| Sijmonger vs Xiaoyu | 1–2 | 33.33% |
| Sijmonger vs Nina | 2–1 | 66.67% |
| Sijmonger vs Kuma | 1–2 | 33.33% |
| Sijmonger vs Jack-8 | 0–2 | 0.00% |
| Sijmonger vs Lili | 0–2 | 0.00% |
| Sijmonger vs Claudio | 0–2 | 0.00% |
| Sijmonger vs Zafina | 1–1 | 50.00% |
| Sijmonger vs Leroy | 0–1 | 0.00% |
| Sijmonger vs Raven | 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.