| SwollMammoth vs Azucena | 11–20 | 35.48% |
| SwollMammoth vs Reina | 17–10 | 62.96% |
| SwollMammoth vs King | 9–17 | 34.62% |
| SwollMammoth vs Jin | 14–12 | 53.85% |
| SwollMammoth vs Law | 8–17 | 32.00% |
| SwollMammoth vs Devil Jin | 10–11 | 47.62% |
| SwollMammoth vs Paul | 7–13 | 35.00% |
| SwollMammoth vs Steve | 4–16 | 20.00% |
| SwollMammoth vs Kazuya | 8–9 | 47.06% |
| SwollMammoth vs Yoshimitsu | 9–7 | 56.25% |
| SwollMammoth vs Dragunov | 4–8 | 33.33% |
| SwollMammoth vs Nina | 5–7 | 41.67% |
| SwollMammoth vs Xiaoyu | 7–4 | 63.64% |
| SwollMammoth vs Lili | 8–3 | 72.73% |
| SwollMammoth vs Eddy | 2–9 | 18.18% |
| SwollMammoth vs Hwoarang | 5–5 | 50.00% |
| SwollMammoth vs Bryan | 4–6 | 40.00% |
| SwollMammoth vs Leo | 5–5 | 50.00% |
| SwollMammoth vs Jun | 6–3 | 66.67% |
| SwollMammoth vs Asuka | 4–2 | 66.67% |
| SwollMammoth vs Clive | 3–3 | 50.00% |
| SwollMammoth vs Jack-8 | 3–2 | 60.00% |
| SwollMammoth vs Leroy | 2–3 | 40.00% |
| SwollMammoth vs Feng | 0–4 | 0.00% |
| SwollMammoth vs Lee | 0–4 | 0.00% |
| SwollMammoth vs Kuma | 2–2 | 50.00% |
| SwollMammoth vs Victor | 0–4 | 0.00% |
| SwollMammoth vs Lars | 0–2 | 0.00% |
| SwollMammoth vs Claudio | 0–2 | 0.00% |
| SwollMammoth vs Shaheen | 0–1 | 0.00% |
| SwollMammoth vs Raven | 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.