| Geku vs Jin | 10–13 | 43.48% |
| Geku vs King | 14–6 | 70.00% |
| Geku vs Hwoarang | 8–8 | 50.00% |
| Geku vs Steve | 12–3 | 80.00% |
| Geku vs Bryan | 6–8 | 42.86% |
| Geku vs Victor | 8–4 | 66.67% |
| Geku vs Reina | 8–3 | 72.73% |
| Geku vs Dragunov | 6–4 | 60.00% |
| Geku vs Alisa | 9–1 | 90.00% |
| Geku vs Lars | 7–2 | 77.78% |
| Geku vs Heihachi | 5–4 | 55.56% |
| Geku vs Lili | 6–2 | 75.00% |
| Geku vs Law | 4–3 | 57.14% |
| Geku vs Leroy | 4–3 | 57.14% |
| Geku vs Jun | 5–1 | 83.33% |
| Geku vs Asuka | 3–2 | 60.00% |
| Geku vs Lee | 4–1 | 80.00% |
| Geku vs Zafina | 4–1 | 80.00% |
| Geku vs Azucena | 4–1 | 80.00% |
| Geku vs Xiaoyu | 3–1 | 75.00% |
| Geku vs Yoshimitsu | 2–1 | 66.67% |
| Geku vs Jack-8 | 1–2 | 33.33% |
| Geku vs Nina | 2–1 | 66.67% |
| Geku vs Lidia | 0–3 | 0.00% |
| Geku vs Paul | 0–2 | 0.00% |
| Geku vs Devil Jin | 2–0 | 100.00% |
| Geku vs Raven | 2–0 | 100.00% |
| Geku vs Clive | 0–2 | 0.00% |
| Geku vs Anna | 2–0 | 100.00% |
| Geku vs Kazuya | 0–1 | 0.00% |
| Geku vs Feng | 1–0 | 100.00% |
| Geku vs Leo | 1–0 | 100.00% |
| Geku vs Panda | 0–1 | 0.00% |
| Geku 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.