| Gengar vs King | 50–27 | 64.94% |
| Gengar vs Jin | 32–43 | 42.67% |
| Gengar vs Kazuya | 34–28 | 54.84% |
| Gengar vs Law | 32–16 | 66.67% |
| Gengar vs Reina | 22–24 | 47.83% |
| Gengar vs Hwoarang | 26–19 | 57.78% |
| Gengar vs Bryan | 27–18 | 60.00% |
| Gengar vs Steve | 19–23 | 45.24% |
| Gengar vs Dragunov | 19–20 | 48.72% |
| Gengar vs Eddy | 22–15 | 59.46% |
| Gengar vs Paul | 17–19 | 47.22% |
| Gengar vs Lili | 16–20 | 44.44% |
| Gengar vs Lidia | 9–26 | 25.71% |
| Gengar vs Yoshimitsu | 19–15 | 55.88% |
| Gengar vs Lee | 12–19 | 38.71% |
| Gengar vs Asuka | 14–15 | 48.28% |
| Gengar vs Leo | 15–12 | 55.56% |
| Gengar vs Leroy | 15–10 | 60.00% |
| Gengar vs Raven | 13–12 | 52.00% |
| Gengar vs Azucena | 16–8 | 66.67% |
| Gengar vs Victor | 13–11 | 54.17% |
| Gengar vs Lars | 11–12 | 47.83% |
| Gengar vs Jun | 7–14 | 33.33% |
| Gengar vs Devil Jin | 12–6 | 66.67% |
| Gengar vs Feng | 12–6 | 66.67% |
| Gengar vs Xiaoyu | 5–11 | 31.25% |
| Gengar vs Alisa | 11–4 | 73.33% |
| Gengar vs Jack-8 | 8–5 | 61.54% |
| Gengar vs Shaheen | 2–9 | 18.18% |
| Gengar vs Kuma | 6–4 | 60.00% |
| Gengar vs Claudio | 6–3 | 66.67% |
| Gengar vs Nina | 4–5 | 44.44% |
| Gengar vs Zafina | 1–3 | 25.00% |
| Gengar vs Clive | 1–3 | 25.00% |
| Gengar vs Panda | 2–1 | 66.67% |
| Gengar vs Armor King | 1–2 | 33.33% |
| Gengar vs Anna | 2–0 | 100.00% |
| Gengar vs Fahkumram | 2–0 | 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.