| Seadramon vs King | 16–22 | 42.11% |
| Seadramon vs Lili | 14–9 | 60.87% |
| Seadramon vs Steve | 9–13 | 40.91% |
| Seadramon vs Law | 8–6 | 57.14% |
| Seadramon vs Jin | 4–9 | 30.77% |
| Seadramon vs Eddy | 4–9 | 30.77% |
| Seadramon vs Paul | 6–6 | 50.00% |
| Seadramon vs Hwoarang | 7–5 | 58.33% |
| Seadramon vs Lidia | 7–5 | 58.33% |
| Seadramon vs Yoshimitsu | 6–5 | 54.55% |
| Seadramon vs Reina | 9–2 | 81.82% |
| Seadramon vs Asuka | 3–7 | 30.00% |
| Seadramon vs Bryan | 6–3 | 66.67% |
| Seadramon vs Jun | 6–3 | 66.67% |
| Seadramon vs Kazuya | 6–2 | 75.00% |
| Seadramon vs Dragunov | 3–4 | 42.86% |
| Seadramon vs Lars | 5–2 | 71.43% |
| Seadramon vs Nina | 6–1 | 85.71% |
| Seadramon vs Azucena | 3–4 | 42.86% |
| Seadramon vs Heihachi | 4–3 | 57.14% |
| Seadramon vs Xiaoyu | 4–2 | 66.67% |
| Seadramon vs Claudio | 4–2 | 66.67% |
| Seadramon vs Clive | 4–1 | 80.00% |
| Seadramon vs Kuma | 2–2 | 50.00% |
| Seadramon vs Feng | 1–2 | 33.33% |
| Seadramon vs Leo | 1–2 | 33.33% |
| Seadramon vs Zafina | 3–0 | 100.00% |
| Seadramon vs Jack-8 | 0–2 | 0.00% |
| Seadramon vs Lee | 0–2 | 0.00% |
| Seadramon vs Leroy | 2–0 | 100.00% |
| Seadramon vs Alisa | 1–0 | 100.00% |
| Seadramon vs Panda | 0–1 | 0.00% |
| Seadramon vs Victor | 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.