| Mayo vs Armor King | 12–18 | 40.00% |
| Mayo vs Steve | 12–9 | 57.14% |
| Mayo vs Jin | 6–12 | 33.33% |
| Mayo vs Reina | 5–9 | 35.71% |
| Mayo vs Law | 7–4 | 63.64% |
| Mayo vs Eddy | 6–5 | 54.55% |
| Mayo vs Hwoarang | 4–6 | 40.00% |
| Mayo vs Azucena | 8–2 | 80.00% |
| Mayo vs Bryan | 4–5 | 44.44% |
| Mayo vs Heihachi | 4–5 | 44.44% |
| Mayo vs King | 1–7 | 12.50% |
| Mayo vs Kazuya | 2–6 | 25.00% |
| Mayo vs Leroy | 4–4 | 50.00% |
| Mayo vs Jun | 5–3 | 62.50% |
| Mayo vs Victor | 3–5 | 37.50% |
| Mayo vs Fahkumram | 3–5 | 37.50% |
| Mayo vs Lili | 3–3 | 50.00% |
| Mayo vs Shaheen | 1–4 | 20.00% |
| Mayo vs Yoshimitsu | 4–0 | 100.00% |
| Mayo vs Leo | 1–3 | 25.00% |
| Mayo vs Clive | 1–3 | 25.00% |
| Mayo vs Xiaoyu | 1–2 | 33.33% |
| Mayo vs Asuka | 1–2 | 33.33% |
| Mayo vs Feng | 1–2 | 33.33% |
| Mayo vs Dragunov | 2–1 | 66.67% |
| Mayo vs Alisa | 1–2 | 33.33% |
| Mayo vs Zafina | 3–0 | 100.00% |
| Mayo vs Raven | 0–3 | 0.00% |
| Mayo vs Lidia | 1–2 | 33.33% |
| Mayo vs Anna | 1–2 | 33.33% |
| Mayo vs Paul | 2–0 | 100.00% |
| Mayo vs Claudio | 2–0 | 100.00% |
| Mayo vs Lee | 2–0 | 100.00% |
| Mayo vs Kuma | 0–2 | 0.00% |
| Mayo vs Nina | 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.