| EFB| Posejdon95 vs Jin | 128–104 | 55.17% |
| EFB| Posejdon95 vs Kazuya | 118–99 | 54.38% |
| EFB| Posejdon95 vs Bryan | 105–68 | 60.69% |
| EFB| Posejdon95 vs Heihachi | 100–69 | 59.17% |
| EFB| Posejdon95 vs Lee | 83–83 | 50.00% |
| EFB| Posejdon95 vs Reina | 83–62 | 57.24% |
| EFB| Posejdon95 vs King | 79–63 | 55.63% |
| EFB| Posejdon95 vs Hwoarang | 78–61 | 56.12% |
| EFB| Posejdon95 vs Paul | 75–49 | 60.48% |
| EFB| Posejdon95 vs Steve | 59–60 | 49.58% |
| EFB| Posejdon95 vs Dragunov | 69–48 | 58.97% |
| EFB| Posejdon95 vs Devil Jin | 57–59 | 49.14% |
| EFB| Posejdon95 vs Yoshimitsu | 48–59 | 44.86% |
| EFB| Posejdon95 vs Asuka | 42–54 | 43.75% |
| EFB| Posejdon95 vs Law | 50–45 | 52.63% |
| EFB| Posejdon95 vs Feng | 40–51 | 43.96% |
| EFB| Posejdon95 vs Azucena | 47–34 | 58.02% |
| EFB| Posejdon95 vs Alisa | 39–40 | 49.37% |
| EFB| Posejdon95 vs Lili | 32–46 | 41.03% |
| EFB| Posejdon95 vs Claudio | 42–35 | 54.55% |
| EFB| Posejdon95 vs Xiaoyu | 35–37 | 48.61% |
| EFB| Posejdon95 vs Jun | 30–37 | 44.78% |
| EFB| Posejdon95 vs Leo | 27–38 | 41.54% |
| EFB| Posejdon95 vs Victor | 29–34 | 46.03% |
| EFB| Posejdon95 vs Raven | 35–25 | 58.33% |
| EFB| Posejdon95 vs Lidia | 31–28 | 52.54% |
| EFB| Posejdon95 vs Lars | 31–27 | 53.45% |
| EFB| Posejdon95 vs Nina | 25–33 | 43.10% |
| EFB| Posejdon95 vs Leroy | 24–33 | 42.11% |
| EFB| Posejdon95 vs Jack-8 | 29–23 | 55.77% |
| EFB| Posejdon95 vs Eddy | 25–27 | 48.08% |
| EFB| Posejdon95 vs Zafina | 22–26 | 45.83% |
| EFB| Posejdon95 vs Clive | 22–24 | 47.83% |
| EFB| Posejdon95 vs Kuma | 6–16 | 27.27% |
| EFB| Posejdon95 vs Shaheen | 7–14 | 33.33% |
| EFB| Posejdon95 vs Panda | 6–12 | 33.33% |
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.