| Gekko vs Jin | 19–28 | 40.43% |
| Gekko vs Steve | 22–15 | 59.46% |
| Gekko vs King | 15–14 | 51.72% |
| Gekko vs Azucena | 17–9 | 65.38% |
| Gekko vs Bryan | 9–16 | 36.00% |
| Gekko vs Reina | 6–18 | 25.00% |
| Gekko vs Eddy | 5–17 | 22.73% |
| Gekko vs Dragunov | 9–11 | 45.00% |
| Gekko vs Victor | 8–12 | 40.00% |
| Gekko vs Hwoarang | 8–11 | 42.11% |
| Gekko vs Kazuya | 12–7 | 63.16% |
| Gekko vs Nina | 10–9 | 52.63% |
| Gekko vs Feng | 12–1 | 92.31% |
| Gekko vs Jun | 7–6 | 53.85% |
| Gekko vs Lee | 7–5 | 58.33% |
| Gekko vs Law | 6–5 | 54.55% |
| Gekko vs Lili | 7–4 | 63.64% |
| Gekko vs Claudio | 4–6 | 40.00% |
| Gekko vs Devil Jin | 2–7 | 22.22% |
| Gekko vs Asuka | 1–7 | 12.50% |
| Gekko vs Alisa | 2–6 | 25.00% |
| Gekko vs Paul | 0–6 | 0.00% |
| Gekko vs Yoshimitsu | 3–3 | 50.00% |
| Gekko vs Leroy | 1–5 | 16.67% |
| Gekko vs Shaheen | 1–4 | 20.00% |
| Gekko vs Xiaoyu | 0–4 | 0.00% |
| Gekko vs Lars | 3–1 | 75.00% |
| Gekko vs Panda | 1–2 | 33.33% |
| Gekko vs Raven | 1–2 | 33.33% |
| Gekko vs Jack-8 | 2–0 | 100.00% |
| Gekko vs Leo | 1–1 | 50.00% |
| Gekko vs Zafina | 1–1 | 50.00% |
| Gekko vs Kuma | 0–1 | 0.00% |
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.