| Seaweed vs Kazuya | 6–4 | 60.00% |
| Seaweed vs Yoshimitsu | 5–4 | 55.56% |
| Seaweed vs King | 4–3 | 57.14% |
| Seaweed vs Bryan | 6–0 | 100.00% |
| Seaweed vs Azucena | 3–3 | 50.00% |
| Seaweed vs Hwoarang | 5–0 | 100.00% |
| Seaweed vs Jin | 3–2 | 60.00% |
| Seaweed vs Steve | 5–0 | 100.00% |
| Seaweed vs Lili | 3–2 | 60.00% |
| Seaweed vs Kuma | 4–1 | 80.00% |
| Seaweed vs Reina | 5–0 | 100.00% |
| Seaweed vs Dragunov | 3–1 | 75.00% |
| Seaweed vs Leo | 0–4 | 0.00% |
| Seaweed vs Victor | 1–3 | 25.00% |
| Seaweed vs Eddy | 2–2 | 50.00% |
| Seaweed vs Lidia | 4–0 | 100.00% |
| Seaweed vs Law | 1–2 | 33.33% |
| Seaweed vs Devil Jin | 1–2 | 33.33% |
| Seaweed vs Alisa | 2–1 | 66.67% |
| Seaweed vs Nina | 3–0 | 100.00% |
| Seaweed vs Lee | 1–2 | 33.33% |
| Seaweed vs Feng | 2–0 | 100.00% |
| Seaweed vs Lars | 2–0 | 100.00% |
| Seaweed vs Claudio | 2–0 | 100.00% |
| Seaweed vs Zafina | 0–2 | 0.00% |
| Seaweed vs Jun | 1–1 | 50.00% |
| Seaweed vs Asuka | 0–1 | 0.00% |
| Seaweed vs Heihachi | 1–0 | 100.00% |
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.