| 99Poseidon vs Steve | 10–8 | 55.56% |
| 99Poseidon vs Azucena | 2–4 | 33.33% |
| 99Poseidon vs Kazuya | 2–2 | 50.00% |
| 99Poseidon vs Armor King | 0–4 | 0.00% |
| 99Poseidon vs Yoshimitsu | 2–1 | 66.67% |
| 99Poseidon vs Jin | 1–2 | 33.33% |
| 99Poseidon vs Asuka | 2–1 | 66.67% |
| 99Poseidon vs Devil Jin | 1–2 | 33.33% |
| 99Poseidon vs Hwoarang | 1–1 | 50.00% |
| 99Poseidon vs Alisa | 0–2 | 0.00% |
| 99Poseidon vs Claudio | 0–2 | 0.00% |
| 99Poseidon vs Jack-8 | 0–1 | 0.00% |
| 99Poseidon vs Shaheen | 0–1 | 0.00% |
| 99Poseidon vs Jun | 0–1 | 0.00% |
| 99Poseidon vs Reina | 1–0 | 100.00% |
| 99Poseidon vs Anna | 1–0 | 100.00% |
| 99Poseidon vs Fahkumram | 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.