| Gumgum vs King | 22–11 | 66.67% |
| Gumgum vs Kazuya | 19–14 | 57.58% |
| Gumgum vs Asuka | 17–9 | 65.38% |
| Gumgum vs Alisa | 12–14 | 46.15% |
| Gumgum vs Dragunov | 13–12 | 52.00% |
| Gumgum vs Steve | 15–9 | 62.50% |
| Gumgum vs Victor | 9–15 | 37.50% |
| Gumgum vs Lili | 15–8 | 65.22% |
| Gumgum vs Hwoarang | 9–13 | 40.91% |
| Gumgum vs Xiaoyu | 14–8 | 63.64% |
| Gumgum vs Devil Jin | 10–12 | 45.45% |
| Gumgum vs Azucena | 14–8 | 63.64% |
| Gumgum vs Lee | 10–11 | 47.62% |
| Gumgum vs Jun | 12–9 | 57.14% |
| Gumgum vs Yoshimitsu | 7–13 | 35.00% |
| Gumgum vs Bryan | 5–15 | 25.00% |
| Gumgum vs Feng | 14–6 | 70.00% |
| Gumgum vs Paul | 13–6 | 68.42% |
| Gumgum vs Reina | 10–8 | 55.56% |
| Gumgum vs Eddy | 8–9 | 47.06% |
| Gumgum vs Jack-8 | 7–9 | 43.75% |
| Gumgum vs Jin | 7–8 | 46.67% |
| Gumgum vs Lars | 8–7 | 53.33% |
| Gumgum vs Nina | 8–5 | 61.54% |
| Gumgum vs Law | 4–6 | 40.00% |
| Gumgum vs Zafina | 5–4 | 55.56% |
| Gumgum vs Claudio | 3–5 | 37.50% |
| Gumgum vs Raven | 2–5 | 28.57% |
| Gumgum vs Leo | 5–1 | 83.33% |
| Gumgum vs Kuma | 3–2 | 60.00% |
| Gumgum vs Shaheen | 3–1 | 75.00% |
| Gumgum vs Leroy | 0–4 | 0.00% |
| Gumgum vs Panda | 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.