| PoseidonMuse vs King | 10–12 | 45.45% |
| PoseidonMuse vs Jin | 9–12 | 42.86% |
| PoseidonMuse vs Law | 17–2 | 89.47% |
| PoseidonMuse vs Hwoarang | 12–7 | 63.16% |
| PoseidonMuse vs Steve | 14–4 | 77.78% |
| PoseidonMuse vs Kazuya | 4–11 | 26.67% |
| PoseidonMuse vs Reina | 9–6 | 60.00% |
| PoseidonMuse vs Eddy | 5–9 | 35.71% |
| PoseidonMuse vs Yoshimitsu | 7–6 | 53.85% |
| PoseidonMuse vs Bryan | 4–8 | 33.33% |
| PoseidonMuse vs Azucena | 8–3 | 72.73% |
| PoseidonMuse vs Asuka | 8–1 | 88.89% |
| PoseidonMuse vs Jun | 5–4 | 55.56% |
| PoseidonMuse vs Armor King | 4–5 | 44.44% |
| PoseidonMuse vs Xiaoyu | 3–5 | 37.50% |
| PoseidonMuse vs Dragunov | 4–4 | 50.00% |
| PoseidonMuse vs Clive | 5–3 | 62.50% |
| PoseidonMuse vs Lee | 4–3 | 57.14% |
| PoseidonMuse vs Lars | 4–1 | 80.00% |
| PoseidonMuse vs Alisa | 3–2 | 60.00% |
| PoseidonMuse vs Devil Jin | 2–2 | 50.00% |
| PoseidonMuse vs Leo | 3–0 | 100.00% |
| PoseidonMuse vs Claudio | 2–1 | 66.67% |
| PoseidonMuse vs Shaheen | 1–2 | 33.33% |
| PoseidonMuse vs Victor | 1–2 | 33.33% |
| PoseidonMuse vs Heihachi | 2–1 | 66.67% |
| PoseidonMuse vs Paul | 0–2 | 0.00% |
| PoseidonMuse vs Nina | 0–2 | 0.00% |
| PoseidonMuse vs Kuma | 2–0 | 100.00% |
| PoseidonMuse vs Leroy | 2–0 | 100.00% |
| PoseidonMuse vs Lili | 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.