| Seidela vs Jin | 500–590 | 45.87% |
| Seidela vs King | 424–555 | 43.31% |
| Seidela vs Kazuya | 424–545 | 43.76% |
| Seidela vs Law | 442–508 | 46.53% |
| Seidela vs Hwoarang | 412–519 | 44.25% |
| Seidela vs Bryan | 354–447 | 44.19% |
| Seidela vs Steve | 251–319 | 44.04% |
| Seidela vs Paul | 237–314 | 43.01% |
| Seidela vs Heihachi | 253–298 | 45.92% |
| Seidela vs Dragunov | 235–263 | 47.19% |
| Seidela vs Yoshimitsu | 225–244 | 47.97% |
| Seidela vs Reina | 206–260 | 44.21% |
| Seidela vs Eddy | 226–217 | 51.02% |
| Seidela vs Jun | 221–210 | 51.28% |
| Seidela vs Devil Jin | 195–234 | 45.45% |
| Seidela vs Lili | 150–235 | 38.96% |
| Seidela vs Alisa | 189–183 | 50.81% |
| Seidela vs Xiaoyu | 203–154 | 56.86% |
| Seidela vs Clive | 137–211 | 39.37% |
| Seidela vs Victor | 153–175 | 46.65% |
| Seidela vs Nina | 157–167 | 48.46% |
| Seidela vs Lee | 137–163 | 45.67% |
| Seidela vs Lidia | 137–151 | 47.57% |
| Seidela vs Feng | 116–170 | 40.56% |
| Seidela vs Lars | 130–151 | 46.26% |
| Seidela vs Asuka | 126–150 | 45.65% |
| Seidela vs Azucena | 118–144 | 45.04% |
| Seidela vs Leroy | 92–101 | 47.67% |
| Seidela vs Raven | 88–104 | 45.83% |
| Seidela vs Anna | 95–93 | 50.53% |
| Seidela vs Fahkumram | 76–103 | 42.46% |
| Seidela vs Jack-8 | 83–95 | 46.63% |
| Seidela vs Armor King | 67–100 | 40.12% |
| Seidela vs Kuma | 66–72 | 47.83% |
| Seidela vs Claudio | 39–85 | 31.45% |
| Seidela vs Leo | 43–58 | 42.57% |
| Seidela vs Zafina | 46–42 | 52.27% |
| Seidela vs Miary Zo | 37–51 | 42.05% |
| Seidela vs Shaheen | 33–53 | 38.37% |
| Seidela vs Panda | 23–34 | 40.35% |
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.