| SwampMan vs King | 64–61 | 51.20% |
| SwampMan vs Reina | 46–71 | 39.32% |
| SwampMan vs Kazuya | 48–49 | 49.48% |
| SwampMan vs Heihachi | 23–60 | 27.71% |
| SwampMan vs Steve | 44–36 | 55.00% |
| SwampMan vs Bryan | 38–41 | 48.10% |
| SwampMan vs Jin | 38–32 | 54.29% |
| SwampMan vs Hwoarang | 32–37 | 46.38% |
| SwampMan vs Jun | 34–34 | 50.00% |
| SwampMan vs Azucena | 29–37 | 43.94% |
| SwampMan vs Lili | 28–36–1 | 43.75% |
| SwampMan vs Law | 36–25 | 59.02% |
| SwampMan vs Asuka | 31–26 | 54.39% |
| SwampMan vs Eddy | 26–30 | 46.43% |
| SwampMan vs Armor King | 26–29 | 47.27% |
| SwampMan vs Dragunov | 28–26 | 51.85% |
| SwampMan vs Victor | 27–23 | 54.00% |
| SwampMan vs Xiaoyu | 17–28 | 37.78% |
| SwampMan vs Yoshimitsu | 16–28 | 36.36% |
| SwampMan vs Paul | 21–22 | 48.84% |
| SwampMan vs Lars | 25–18 | 58.14% |
| SwampMan vs Devil Jin | 15–26 | 36.59% |
| SwampMan vs Fahkumram | 14–22 | 38.89% |
| SwampMan vs Feng | 16–18 | 47.06% |
| SwampMan vs Kuma | 13–14 | 48.15% |
| SwampMan vs Raven | 11–16 | 40.74% |
| SwampMan vs Lee | 9–16 | 36.00% |
| SwampMan vs Lidia | 15–10 | 60.00% |
| SwampMan vs Leo | 7–15 | 31.82% |
| SwampMan vs Alisa | 10–11 | 47.62% |
| SwampMan vs Claudio | 11–9 | 55.00% |
| SwampMan vs Nina | 6–13 | 31.58% |
| SwampMan vs Jack-8 | 6–9 | 40.00% |
| SwampMan vs Leroy | 7–8 | 46.67% |
| SwampMan vs Anna | 8–7 | 53.33% |
| SwampMan vs Clive | 7–7 | 50.00% |
| SwampMan vs Zafina | 2–6 | 25.00% |
| SwampMan vs Shaheen | 4–3 | 57.14% |
| SwampMan vs Panda | 3–2 | 60.00% |
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.