| Hammy vs Reina | 13–6 | 68.42% |
| Hammy vs Jin | 8–8 | 50.00% |
| Hammy vs Kazuya | 5–8 | 38.46% |
| Hammy vs Law | 3–7 | 30.00% |
| Hammy vs Yoshimitsu | 2–8 | 20.00% |
| Hammy vs Steve | 5–5 | 50.00% |
| Hammy vs Nina | 4–6 | 40.00% |
| Hammy vs Heihachi | 6–4 | 60.00% |
| Hammy vs King | 1–7 | 12.50% |
| Hammy vs Lars | 3–5 | 37.50% |
| Hammy vs Victor | 1–6 | 14.29% |
| Hammy vs Hwoarang | 1–5 | 16.67% |
| Hammy vs Devil Jin | 2–3 | 40.00% |
| Hammy vs Dragunov | 2–3 | 40.00% |
| Hammy vs Alisa | 3–2 | 60.00% |
| Hammy vs Eddy | 1–4 | 20.00% |
| Hammy vs Paul | 2–2 | 50.00% |
| Hammy vs Bryan | 1–3 | 25.00% |
| Hammy vs Feng | 1–3 | 25.00% |
| Hammy vs Asuka | 0–3 | 0.00% |
| Hammy vs Jun | 0–3 | 0.00% |
| Hammy vs Lili | 0–2 | 0.00% |
| Hammy vs Leo | 0–2 | 0.00% |
| Hammy vs Lee | 0–2 | 0.00% |
| Hammy vs Zafina | 0–2 | 0.00% |
| Hammy vs Leroy | 0–2 | 0.00% |
| Hammy vs Raven | 1–1 | 50.00% |
| Hammy vs Azucena | 1–0 | 100.00% |
| Hammy vs Clive | 1–0 | 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.