| hammer21 vs Kazuya | 39–33 | 54.17% |
| hammer21 vs King | 36–26 | 58.06% |
| hammer21 vs Reina | 27–31 | 46.55% |
| hammer21 vs Dragunov | 22–28 | 44.00% |
| hammer21 vs Law | 22–17 | 56.41% |
| hammer21 vs Lili | 22–17 | 56.41% |
| hammer21 vs Jin | 17–19 | 47.22% |
| hammer21 vs Eddy | 15–19–1 | 44.12% |
| hammer21 vs Xiaoyu | 13–18 | 41.94% |
| hammer21 vs Bryan | 17–14 | 54.84% |
| hammer21 vs Steve | 18–13 | 58.06% |
| hammer21 vs Asuka | 23–8 | 74.19% |
| hammer21 vs Yoshimitsu | 10–18 | 35.71% |
| hammer21 vs Lars | 11–16 | 40.74% |
| hammer21 vs Hwoarang | 9–17 | 34.62% |
| hammer21 vs Feng | 10–13 | 43.48% |
| hammer21 vs Jun | 9–14 | 39.13% |
| hammer21 vs Azucena | 11–12 | 47.83% |
| hammer21 vs Leo | 10–12 | 45.45% |
| hammer21 vs Lee | 11–11 | 50.00% |
| hammer21 vs Victor | 8–14 | 36.36% |
| hammer21 vs Paul | 11–9 | 55.00% |
| hammer21 vs Devil Jin | 11–9 | 55.00% |
| hammer21 vs Leroy | 10–10 | 50.00% |
| hammer21 vs Jack-8 | 6–10 | 37.50% |
| hammer21 vs Nina | 7–6 | 53.85% |
| hammer21 vs Alisa | 5–5 | 50.00% |
| hammer21 vs Kuma | 4–6 | 40.00% |
| hammer21 vs Raven | 2–4 | 33.33% |
| hammer21 vs Claudio | 4–1 | 80.00% |
| hammer21 vs Zafina | 1–4 | 20.00% |
| hammer21 vs Shaheen | 2–1 | 66.67% |
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.