| Geno Mathers vs Jin | 48–55 | 46.60% |
| Geno Mathers vs Dragunov | 39–50 | 43.82% |
| Geno Mathers vs Bryan | 35–46 | 43.21% |
| Geno Mathers vs Kazuya | 39–42 | 48.15% |
| Geno Mathers vs King | 36–44 | 45.00% |
| Geno Mathers vs Law | 33–40 | 45.21% |
| Geno Mathers vs Heihachi | 36–37 | 49.32% |
| Geno Mathers vs Steve | 32–28 | 53.33% |
| Geno Mathers vs Paul | 36–22 | 62.07% |
| Geno Mathers vs Yoshimitsu | 26–32 | 44.83% |
| Geno Mathers vs Devil Jin | 29–24 | 54.72% |
| Geno Mathers vs Reina | 21–29 | 42.00% |
| Geno Mathers vs Feng | 20–27 | 42.55% |
| Geno Mathers vs Jun | 24–22 | 52.17% |
| Geno Mathers vs Hwoarang | 16–18 | 47.06% |
| Geno Mathers vs Lee | 21–13 | 61.76% |
| Geno Mathers vs Azucena | 16–14 | 53.33% |
| Geno Mathers vs Lars | 9–18 | 33.33% |
| Geno Mathers vs Lili | 10–16 | 38.46% |
| Geno Mathers vs Asuka | 19–5 | 79.17% |
| Geno Mathers vs Jack-8 | 10–13 | 43.48% |
| Geno Mathers vs Clive | 11–12 | 47.83% |
| Geno Mathers vs Xiaoyu | 9–10 | 47.37% |
| Geno Mathers vs Leroy | 6–13 | 31.58% |
| Geno Mathers vs Kuma | 8–9 | 47.06% |
| Geno Mathers vs Nina | 6–10 | 37.50% |
| Geno Mathers vs Alisa | 11–4 | 73.33% |
| Geno Mathers vs Lidia | 4–10 | 28.57% |
| Geno Mathers vs Claudio | 5–8 | 38.46% |
| Geno Mathers vs Eddy | 2–10 | 16.67% |
| Geno Mathers vs Anna | 4–8 | 33.33% |
| Geno Mathers vs Shaheen | 5–5 | 50.00% |
| Geno Mathers vs Fahkumram | 3–7 | 30.00% |
| Geno Mathers vs Zafina | 2–4 | 33.33% |
| Geno Mathers vs Raven | 1–5 | 16.67% |
| Geno Mathers vs Victor | 1–3 | 25.00% |
| Geno Mathers vs Panda | 2–1 | 66.67% |
| Geno Mathers vs Leo | 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.