| Jems vs Jin | 22–40 | 35.48% |
| Jems vs King | 21–27 | 43.75% |
| Jems vs Kazuya | 23–24 | 48.94% |
| Jems vs Reina | 22–18 | 55.00% |
| Jems vs Hwoarang | 13–24 | 35.14% |
| Jems vs Bryan | 8–26 | 23.53% |
| Jems vs Steve | 14–20 | 41.18% |
| Jems vs Eddy | 14–14 | 50.00% |
| Jems vs Lili | 12–12 | 50.00% |
| Jems vs Law | 10–12 | 45.45% |
| Jems vs Yoshimitsu | 5–16 | 23.81% |
| Jems vs Victor | 10–10 | 50.00% |
| Jems vs Jun | 9–10 | 47.37% |
| Jems vs Asuka | 11–7 | 61.11% |
| Jems vs Paul | 7–8 | 46.67% |
| Jems vs Leroy | 8–7 | 53.33% |
| Jems vs Xiaoyu | 8–6 | 57.14% |
| Jems vs Lee | 9–5 | 64.29% |
| Jems vs Feng | 8–5 | 61.54% |
| Jems vs Nina | 3–10 | 23.08% |
| Jems vs Azucena | 8–4 | 66.67% |
| Jems vs Jack-8 | 4–5 | 44.44% |
| Jems vs Dragunov | 3–6 | 33.33% |
| Jems vs Shaheen | 5–4 | 55.56% |
| Jems vs Alisa | 4–4 | 50.00% |
| Jems vs Lars | 5–2 | 71.43% |
| Jems vs Devil Jin | 1–5 | 16.67% |
| Jems vs Kuma | 2–3 | 40.00% |
| Jems vs Claudio | 2–2 | 50.00% |
| Jems vs Leo | 2–1 | 66.67% |
| Jems vs Zafina | 2–1 | 66.67% |
| Jems vs Raven | 0–2 | 0.00% |
| Jems vs Lidia | 2–0 | 100.00% |
| Jems 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.