| Gengar Pokémon vs Reina | 19–35 | 35.19% |
| Gengar Pokémon vs Jin | 17–32 | 34.69% |
| Gengar Pokémon vs King | 9–34 | 20.93% |
| Gengar Pokémon vs Hwoarang | 12–30–1 | 28.57% |
| Gengar Pokémon vs Jun | 12–21 | 36.36% |
| Gengar Pokémon vs Kazuya | 11–17 | 39.29% |
| Gengar Pokémon vs Steve | 3–25 | 10.71% |
| Gengar Pokémon vs Dragunov | 10–18 | 35.71% |
| Gengar Pokémon vs Law | 11–13 | 45.83% |
| Gengar Pokémon vs Asuka | 4–18 | 18.18% |
| Gengar Pokémon vs Eddy | 7–15 | 31.82% |
| Gengar Pokémon vs Bryan | 2–18 | 10.00% |
| Gengar Pokémon vs Armor King | 10–9 | 52.63% |
| Gengar Pokémon vs Victor | 8–8 | 50.00% |
| Gengar Pokémon vs Lili | 3–11 | 21.43% |
| Gengar Pokémon vs Lee | 5–9 | 35.71% |
| Gengar Pokémon vs Clive | 7–7 | 50.00% |
| Gengar Pokémon vs Devil Jin | 2–10 | 16.67% |
| Gengar Pokémon vs Leo | 3–9 | 25.00% |
| Gengar Pokémon vs Heihachi | 4–8 | 33.33% |
| Gengar Pokémon vs Yoshimitsu | 4–7 | 36.36% |
| Gengar Pokémon vs Xiaoyu | 8–3 | 72.73% |
| Gengar Pokémon vs Jack-8 | 1–10 | 9.09% |
| Gengar Pokémon vs Alisa | 3–8 | 27.27% |
| Gengar Pokémon vs Nina | 3–7 | 30.00% |
| Gengar Pokémon vs Azucena | 4–6 | 40.00% |
| Gengar Pokémon vs Feng | 4–4 | 50.00% |
| Gengar Pokémon vs Leroy | 1–7 | 12.50% |
| Gengar Pokémon vs Zafina | 3–4 | 42.86% |
| Gengar Pokémon vs Lars | 2–3 | 40.00% |
| Gengar Pokémon vs Claudio | 2–2 | 50.00% |
| Gengar Pokémon vs Lidia | 0–3 | 0.00% |
| Gengar Pokémon vs Anna | 2–1 | 66.67% |
| Gengar Pokémon vs Raven | 0–2 | 0.00% |
| Gengar Pokémon 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.