| Hamm vs Reina | 23–22 | 51.11% |
| Hamm vs Jin | 15–29 | 34.09% |
| Hamm vs Kazuya | 12–23 | 34.29% |
| Hamm vs King | 11–20 | 35.48% |
| Hamm vs Lidia | 18–10 | 64.29% |
| Hamm vs Jun | 17–10 | 62.96% |
| Hamm vs Nina | 5–20 | 20.00% |
| Hamm vs Steve | 8–15 | 34.78% |
| Hamm vs Law | 7–15 | 31.82% |
| Hamm vs Dragunov | 3–17 | 15.00% |
| Hamm vs Lee | 10–9 | 52.63% |
| Hamm vs Hwoarang | 8–10 | 44.44% |
| Hamm vs Bryan | 6–10 | 37.50% |
| Hamm vs Victor | 4–12 | 25.00% |
| Hamm vs Yoshimitsu | 4–10 | 28.57% |
| Hamm vs Kuma | 3–11 | 21.43% |
| Hamm vs Alisa | 4–8 | 33.33% |
| Hamm vs Azucena | 2–10 | 16.67% |
| Hamm vs Xiaoyu | 5–6 | 45.45% |
| Hamm vs Eddy | 6–5 | 54.55% |
| Hamm vs Paul | 2–8 | 20.00% |
| Hamm vs Lars | 3–7 | 30.00% |
| Hamm vs Claudio | 5–4 | 55.56% |
| Hamm vs Asuka | 4–4 | 50.00% |
| Hamm vs Lili | 4–4 | 50.00% |
| Hamm vs Devil Jin | 0–6 | 0.00% |
| Hamm vs Zafina | 3–3 | 50.00% |
| Hamm vs Leroy | 2–4 | 33.33% |
| Hamm vs Raven | 3–3 | 50.00% |
| Hamm vs Jack-8 | 4–1 | 80.00% |
| Hamm vs Feng | 3–2 | 60.00% |
| Hamm vs Leo | 0–2 | 0.00% |
| Hamm vs Panda | 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.