| Gumin vs Dragunov | 17–6 | 73.91% |
| Gumin vs Victor | 20–3 | 86.96% |
| Gumin vs Kazuya | 21–1 | 95.45% |
| Gumin vs Yoshimitsu | 14–6 | 70.00% |
| Gumin vs Reina | 12–5 | 70.59% |
| Gumin vs Lili | 11–5 | 68.75% |
| Gumin vs Hwoarang | 9–6 | 60.00% |
| Gumin vs Heihachi | 13–1 | 92.86% |
| Gumin vs Paul | 9–4 | 69.23% |
| Gumin vs Asuka | 7–6 | 53.85% |
| Gumin vs Lars | 3–9 | 25.00% |
| Gumin vs King | 11–0 | 100.00% |
| Gumin vs Steve | 4–7 | 36.36% |
| Gumin vs Bryan | 6–4 | 60.00% |
| Gumin vs Jun | 8–2 | 80.00% |
| Gumin vs Eddy | 5–5 | 50.00% |
| Gumin vs Xiaoyu | 7–1 | 87.50% |
| Gumin vs Nina | 2–4 | 33.33% |
| Gumin vs Lidia | 4–2 | 66.67% |
| Gumin vs Leroy | 3–2 | 60.00% |
| Gumin vs Azucena | 2–3 | 40.00% |
| Gumin vs Law | 3–1 | 75.00% |
| Gumin vs Devil Jin | 3–1 | 75.00% |
| Gumin vs Jack-8 | 1–2 | 33.33% |
| Gumin vs Alisa | 1–2 | 33.33% |
| Gumin vs Raven | 2–1 | 66.67% |
| Gumin vs Claudio | 2–0 | 100.00% |
| Gumin vs Lee | 2–0 | 100.00% |
| Gumin vs Jin | 0–1 | 0.00% |
| Gumin 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.