| MammothKing vs Steve | 18–16 | 52.94% |
| MammothKing vs Kazuya | 19–9 | 67.86% |
| MammothKing vs Law | 15–12 | 55.56% |
| MammothKing vs Bryan | 12–13 | 48.00% |
| MammothKing vs Jin | 14–10 | 58.33% |
| MammothKing vs Azucena | 12–12 | 50.00% |
| MammothKing vs Reina | 12–11 | 52.17% |
| MammothKing vs King | 11–10 | 52.38% |
| MammothKing vs Lee | 9–9 | 50.00% |
| MammothKing vs Asuka | 9–8 | 52.94% |
| MammothKing vs Xiaoyu | 8–8 | 50.00% |
| MammothKing vs Devil Jin | 6–7 | 46.15% |
| MammothKing vs Feng | 7–6 | 53.85% |
| MammothKing vs Hwoarang | 9–3 | 75.00% |
| MammothKing vs Lars | 5–7 | 41.67% |
| MammothKing vs Dragunov | 5–6 | 45.45% |
| MammothKing vs Paul | 5–4 | 55.56% |
| MammothKing vs Yoshimitsu | 7–2 | 77.78% |
| MammothKing vs Leo | 5–4 | 55.56% |
| MammothKing vs Nina | 3–6 | 33.33% |
| MammothKing vs Jun | 4–5 | 44.44% |
| MammothKing vs Lili | 8–0 | 100.00% |
| MammothKing vs Shaheen | 2–6 | 25.00% |
| MammothKing vs Jack-8 | 4–2 | 66.67% |
| MammothKing vs Panda | 2–4 | 33.33% |
| MammothKing vs Victor | 4–2 | 66.67% |
| MammothKing vs Eddy | 3–3 | 50.00% |
| MammothKing vs Clive | 5–1 | 83.33% |
| MammothKing vs Armor King | 4–2 | 66.67% |
| MammothKing vs Leroy | 4–1 | 80.00% |
| MammothKing vs Alisa | 2–2 | 50.00% |
| MammothKing vs Raven | 4–0 | 100.00% |
| MammothKing vs Claudio | 2–1 | 66.67% |
| MammothKing vs Zafina | 1–2 | 33.33% |
| MammothKing vs Fahkumram | 2–1 | 66.67% |
| MammothKing vs Heihachi | 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.