| Chummy vs Bryan | 31–39 | 44.29% |
| Chummy vs Reina | 24–35 | 40.68% |
| Chummy vs Kazuya | 15–25 | 37.50% |
| Chummy vs Lili | 18–22 | 45.00% |
| Chummy vs Paul | 16–23 | 41.03% |
| Chummy vs King | 18–20 | 47.37% |
| Chummy vs Dragunov | 18–20 | 47.37% |
| Chummy vs Jun | 14–20 | 41.18% |
| Chummy vs Yoshimitsu | 13–19 | 40.62% |
| Chummy vs Hwoarang | 15–16 | 48.39% |
| Chummy vs Heihachi | 13–18 | 41.94% |
| Chummy vs Jin | 12–18 | 40.00% |
| Chummy vs Steve | 13–16 | 44.83% |
| Chummy vs Azucena | 16–13 | 55.17% |
| Chummy vs Victor | 10–19 | 34.48% |
| Chummy vs Law | 12–15 | 44.44% |
| Chummy vs Lee | 15–11 | 57.69% |
| Chummy vs Nina | 13–12 | 52.00% |
| Chummy vs Xiaoyu | 8–15 | 34.78% |
| Chummy vs Feng | 7–16 | 30.43% |
| Chummy vs Eddy | 8–14 | 36.36% |
| Chummy vs Lars | 6–15 | 28.57% |
| Chummy vs Asuka | 4–14 | 22.22% |
| Chummy vs Devil Jin | 2–13 | 13.33% |
| Chummy vs Alisa | 6–8 | 42.86% |
| Chummy vs Jack-8 | 2–10 | 16.67% |
| Chummy vs Claudio | 7–4 | 63.64% |
| Chummy vs Leo | 5–3 | 62.50% |
| Chummy vs Shaheen | 1–5 | 16.67% |
| Chummy vs Leroy | 3–3 | 50.00% |
| Chummy vs Raven | 2–2 | 50.00% |
| Chummy vs Kuma | 0–3 | 0.00% |
| Chummy vs Zafina | 2–1 | 66.67% |
| Chummy vs Panda | 0–2 | 0.00% |
| Chummy vs Lidia | 1–1 | 50.00% |
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.