| Gumdan vs Reina | 48–45 | 51.61% |
| Gumdan vs Bryan | 35–40 | 46.67% |
| Gumdan vs Kazuya | 38–35 | 52.05% |
| Gumdan vs Dragunov | 28–34 | 45.16% |
| Gumdan vs Paul | 29–31 | 48.33% |
| Gumdan vs King | 24–32 | 42.86% |
| Gumdan vs Jin | 19–25–1 | 43.18% |
| Gumdan vs Hwoarang | 22–21 | 51.16% |
| Gumdan vs Law | 26–14 | 65.00% |
| Gumdan vs Asuka | 18–16 | 52.94% |
| Gumdan vs Fahkumram | 13–21 | 38.24% |
| Gumdan vs Yoshimitsu | 12–20 | 37.50% |
| Gumdan vs Jun | 14–18 | 43.75% |
| Gumdan vs Claudio | 17–13 | 56.67% |
| Gumdan vs Steve | 17–11 | 60.71% |
| Gumdan vs Lars | 12–15 | 44.44% |
| Gumdan vs Nina | 12–15 | 44.44% |
| Gumdan vs Victor | 18–9 | 66.67% |
| Gumdan vs Lili | 14–11 | 56.00% |
| Gumdan vs Leroy | 13–12 | 52.00% |
| Gumdan vs Miary Zo | 11–13 | 45.83% |
| Gumdan vs Lidia | 9–14 | 39.13% |
| Gumdan vs Clive | 11–10 | 52.38% |
| Gumdan vs Azucena | 10–10 | 50.00% |
| Gumdan vs Devil Jin | 6–13 | 31.58% |
| Gumdan vs Anna | 7–11 | 38.89% |
| Gumdan vs Eddy | 11–6 | 64.71% |
| Gumdan vs Jack-8 | 6–10 | 37.50% |
| Gumdan vs Alisa | 9–7 | 56.25% |
| Gumdan vs Heihachi | 8–8 | 50.00% |
| Gumdan vs Zafina | 10–5 | 66.67% |
| Gumdan vs Leo | 6–8 | 42.86% |
| Gumdan vs Xiaoyu | 7–6 | 53.85% |
| Gumdan vs Feng | 6–6 | 50.00% |
| Gumdan vs Lee | 4–5 | 44.44% |
| Gumdan vs Armor King | 5–3 | 62.50% |
| Gumdan vs Kuma | 5–2 | 71.43% |
| Gumdan vs Shaheen | 2–3 | 40.00% |
| Gumdan vs Panda | 2–1 | 66.67% |
| Gumdan vs Raven | 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.