| Swamp Thing vs King | 55–117 | 31.98% |
| Swamp Thing vs Kazuya | 47–94 | 33.33% |
| Swamp Thing vs Reina | 54–81 | 40.00% |
| Swamp Thing vs Jin | 39–75 | 34.21% |
| Swamp Thing vs Hwoarang | 49–58–1 | 45.79% |
| Swamp Thing vs Steve | 43–60 | 41.75% |
| Swamp Thing vs Eddy | 31–70 | 30.69% |
| Swamp Thing vs Lili | 36–48 | 42.86% |
| Swamp Thing vs Dragunov | 25–59 | 29.76% |
| Swamp Thing vs Law | 26–56 | 31.71% |
| Swamp Thing vs Jun | 37–42 | 46.84% |
| Swamp Thing vs Bryan | 32–40 | 44.44% |
| Swamp Thing vs Asuka | 22–44 | 33.33% |
| Swamp Thing vs Victor | 16–46 | 25.81% |
| Swamp Thing vs Azucena | 21–40 | 34.43% |
| Swamp Thing vs Heihachi | 23–36 | 38.98% |
| Swamp Thing vs Clive | 19–35 | 35.19% |
| Swamp Thing vs Yoshimitsu | 24–28 | 46.15% |
| Swamp Thing vs Lee | 22–28 | 44.00% |
| Swamp Thing vs Paul | 12–35 | 25.53% |
| Swamp Thing vs Xiaoyu | 14–31 | 31.11% |
| Swamp Thing vs Nina | 16–25–1 | 39.02% |
| Swamp Thing vs Raven | 16–22 | 42.11% |
| Swamp Thing vs Lars | 12–25 | 32.43% |
| Swamp Thing vs Lidia | 19–18 | 51.35% |
| Swamp Thing vs Leo | 11–25 | 30.56% |
| Swamp Thing vs Kuma | 11–23 | 32.35% |
| Swamp Thing vs Feng | 11–22 | 33.33% |
| Swamp Thing vs Devil Jin | 11–21 | 34.38% |
| Swamp Thing vs Alisa | 7–25 | 21.88% |
| Swamp Thing vs Zafina | 13–15 | 46.43% |
| Swamp Thing vs Leroy | 15–13 | 53.57% |
| Swamp Thing vs Claudio | 10–14 | 41.67% |
| Swamp Thing vs Jack-8 | 6–13 | 31.58% |
| Swamp Thing vs Shaheen | 5–9 | 35.71% |
| Swamp Thing vs Panda | 2–6 | 25.00% |
| Swamp Thing vs Anna | 2–0 | 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.