| Mayo vs Jin | 11–15 | 42.31% |
| Mayo vs Jun | 12–12 | 50.00% |
| Mayo vs Lili | 10–6 | 62.50% |
| Mayo vs Lars | 6–10 | 37.50% |
| Mayo vs Azucena | 11–4 | 73.33% |
| Mayo vs Steve | 6–7 | 46.15% |
| Mayo vs Reina | 7–6 | 53.85% |
| Mayo vs Devil Jin | 5–6 | 45.45% |
| Mayo vs Dragunov | 7–4 | 63.64% |
| Mayo vs Feng | 7–3 | 70.00% |
| Mayo vs Bryan | 3–6 | 33.33% |
| Mayo vs Victor | 5–4 | 55.56% |
| Mayo vs Hwoarang | 1–7 | 12.50% |
| Mayo vs Leroy | 3–5 | 37.50% |
| Mayo vs Eddy | 2–6 | 25.00% |
| Mayo vs King | 3–4 | 42.86% |
| Mayo vs Yoshimitsu | 3–4 | 42.86% |
| Mayo vs Asuka | 4–3 | 57.14% |
| Mayo vs Kazuya | 4–2 | 66.67% |
| Mayo vs Alisa | 2–4 | 33.33% |
| Mayo vs Nina | 5–1 | 83.33% |
| Mayo vs Lee | 3–3 | 50.00% |
| Mayo vs Law | 3–2 | 60.00% |
| Mayo vs Claudio | 3–2 | 60.00% |
| Mayo vs Paul | 2–2 | 50.00% |
| Mayo vs Panda | 1–3 | 25.00% |
| Mayo vs Zafina | 0–4 | 0.00% |
| Mayo vs Lidia | 1–3 | 25.00% |
| Mayo vs Jack-8 | 1–2 | 33.33% |
| Mayo vs Leo | 3–0 | 100.00% |
| Mayo vs Xiaoyu | 1–0 | 100.00% |
| Mayo vs Shaheen | 1–0 | 100.00% |
| Mayo 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.