| Seamonster vs Clive | 10–6 | 62.50% |
| Seamonster vs Law | 3–8 | 27.27% |
| Seamonster vs Reina | 6–4 | 60.00% |
| Seamonster vs Yoshimitsu | 3–5 | 37.50% |
| Seamonster vs Jin | 6–2 | 75.00% |
| Seamonster vs Lidia | 5–2 | 71.43% |
| Seamonster vs King | 5–1 | 83.33% |
| Seamonster vs Hwoarang | 4–2 | 66.67% |
| Seamonster vs Kazuya | 2–4 | 33.33% |
| Seamonster vs Lili | 5–1 | 83.33% |
| Seamonster vs Azucena | 3–3 | 50.00% |
| Seamonster vs Heihachi | 5–1 | 83.33% |
| Seamonster vs Devil Jin | 3–2 | 60.00% |
| Seamonster vs Dragunov | 2–3 | 40.00% |
| Seamonster vs Shaheen | 2–2 | 50.00% |
| Seamonster vs Kuma | 1–3 | 25.00% |
| Seamonster vs Raven | 2–2 | 50.00% |
| Seamonster vs Paul | 0–3 | 0.00% |
| Seamonster vs Asuka | 1–2 | 33.33% |
| Seamonster vs Lars | 1–2 | 33.33% |
| Seamonster vs Jun | 2–1 | 66.67% |
| Seamonster vs Steve | 0–2 | 0.00% |
| Seamonster vs Alisa | 0–2 | 0.00% |
| Seamonster vs Victor | 1–1 | 50.00% |
| Seamonster vs Eddy | 2–0 | 100.00% |
| Seamonster vs Xiaoyu | 1–0 | 100.00% |
| Seamonster vs Bryan | 0–1 | 0.00% |
| Seamonster vs Feng | 0–1 | 0.00% |
| Seamonster vs Claudio | 0–1 | 0.00% |
| Seamonster vs Nina | 0–1 | 0.00% |
| Seamonster vs Lee | 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.