| Jackhammer vs King | 43–56 | 43.43% |
| Jackhammer vs Jin | 36–44 | 45.00% |
| Jackhammer vs Reina | 43–37 | 53.75% |
| Jackhammer vs Hwoarang | 32–43 | 42.67% |
| Jackhammer vs Steve | 33–40 | 45.21% |
| Jackhammer vs Kazuya | 24–35 | 40.68% |
| Jackhammer vs Jun | 24–28 | 46.15% |
| Jackhammer vs Bryan | 21–30 | 41.18% |
| Jackhammer vs Eddy | 23–27 | 46.00% |
| Jackhammer vs Nina | 15–28 | 34.88% |
| Jackhammer vs Heihachi | 20–22 | 47.62% |
| Jackhammer vs Dragunov | 15–24 | 38.46% |
| Jackhammer vs Asuka | 9–29 | 23.68% |
| Jackhammer vs Paul | 15–21 | 41.67% |
| Jackhammer vs Yoshimitsu | 12–22 | 35.29% |
| Jackhammer vs Lili | 9–24 | 27.27% |
| Jackhammer vs Law | 13–16 | 44.83% |
| Jackhammer vs Azucena | 13–15 | 46.43% |
| Jackhammer vs Jack-8 | 13–14 | 48.15% |
| Jackhammer vs Raven | 7–15 | 31.82% |
| Jackhammer vs Feng | 11–9 | 55.00% |
| Jackhammer vs Xiaoyu | 10–9 | 52.63% |
| Jackhammer vs Lars | 9–10 | 47.37% |
| Jackhammer vs Lee | 9–10 | 47.37% |
| Jackhammer vs Armor King | 4–15 | 21.05% |
| Jackhammer vs Claudio | 10–8 | 55.56% |
| Jackhammer vs Victor | 2–15 | 11.76% |
| Jackhammer vs Lidia | 9–8 | 52.94% |
| Jackhammer vs Leo | 8–7 | 53.33% |
| Jackhammer vs Kuma | 1–13 | 7.14% |
| Jackhammer vs Leroy | 5–9 | 35.71% |
| Jackhammer vs Alisa | 7–5 | 58.33% |
| Jackhammer vs Clive | 5–7 | 41.67% |
| Jackhammer vs Devil Jin | 7–4 | 63.64% |
| Jackhammer vs Shaheen | 4–7 | 36.36% |
| Jackhammer vs Zafina | 4–7 | 36.36% |
| Jackhammer vs Panda | 4–6 | 40.00% |
| Jackhammer vs Anna | 1–8 | 11.11% |
| Jackhammer vs Fahkumram | 6–3 | 66.67% |
| Jackhammer vs Miary Zo | 1–3 | 25.00% |
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.