| Gumjo vs Jin | 4–7 | 36.36% |
| Gumjo vs King | 6–4 | 60.00% |
| Gumjo vs Alisa | 2–5 | 28.57% |
| Gumjo vs Hwoarang | 2–3 | 40.00% |
| Gumjo vs Clive | 1–4 | 20.00% |
| Gumjo vs Yoshimitsu | 2–2 | 50.00% |
| Gumjo vs Xiaoyu | 1–3 | 25.00% |
| Gumjo vs Law | 2–1 | 66.67% |
| Gumjo vs Bryan | 1–2 | 33.33% |
| Gumjo vs Steve | 2–1 | 66.67% |
| Gumjo vs Claudio | 2–1 | 66.67% |
| Gumjo vs Panda | 3–0 | 100.00% |
| Gumjo vs Leroy | 1–2 | 33.33% |
| Gumjo vs Reina | 2–1 | 66.67% |
| Gumjo vs Victor | 1–2 | 33.33% |
| Gumjo vs Kazuya | 0–2 | 0.00% |
| Gumjo vs Asuka | 1–1 | 50.00% |
| Gumjo vs Feng | 0–2 | 0.00% |
| Gumjo vs Lili | 1–1 | 50.00% |
| Gumjo vs Leo | 2–0 | 100.00% |
| Gumjo vs Nina | 1–1 | 50.00% |
| Gumjo vs Lee | 1–1 | 50.00% |
| Gumjo vs Lidia | 0–2 | 0.00% |
| Gumjo vs Jack-8 | 0–1 | 0.00% |
| Gumjo vs Devil Jin | 0–1 | 0.00% |
| Gumjo vs Dragunov | 0–1 | 0.00% |
| Gumjo vs Azucena | 1–0 | 100.00% |
| Gumjo vs Raven | 1–0 | 100.00% |
| Gumjo vs Eddy | 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.