| Mayo vs Steve | 65–53 | 55.08% |
| Mayo vs Jin | 32–79 | 28.83% |
| Mayo vs Reina | 35–70 | 33.33% |
| Mayo vs Kazuya | 45–59 | 43.27% |
| Mayo vs Bryan | 39–60 | 39.39% |
| Mayo vs Dragunov | 38–55–1 | 40.86% |
| Mayo vs King | 45–45 | 50.00% |
| Mayo vs Clive | 35–43 | 44.87% |
| Mayo vs Law | 23–36 | 38.98% |
| Mayo vs Paul | 24–29 | 45.28% |
| Mayo vs Victor | 22–28 | 44.00% |
| Mayo vs Hwoarang | 15–33 | 31.25% |
| Mayo vs Lili | 22–26 | 45.83% |
| Mayo vs Asuka | 22–25 | 46.81% |
| Mayo vs Heihachi | 16–31 | 34.04% |
| Mayo vs Armor King | 16–27 | 37.21% |
| Mayo vs Devil Jin | 16–26 | 38.10% |
| Mayo vs Jun | 14–25 | 35.90% |
| Mayo vs Alisa | 17–17 | 50.00% |
| Mayo vs Eddy | 18–16 | 52.94% |
| Mayo vs Yoshimitsu | 8–24 | 25.00% |
| Mayo vs Lars | 6–26 | 18.75% |
| Mayo vs Lee | 12–20 | 37.50% |
| Mayo vs Leroy | 15–13 | 53.57% |
| Mayo vs Azucena | 10–16 | 38.46% |
| Mayo vs Xiaoyu | 11–14 | 44.00% |
| Mayo vs Nina | 14–9 | 60.87% |
| Mayo vs Jack-8 | 7–15 | 31.82% |
| Mayo vs Leo | 8–11–1 | 42.11% |
| Mayo vs Feng | 6–9 | 40.00% |
| Mayo vs Anna | 5–10 | 33.33% |
| Mayo vs Kuma | 6–7 | 46.15% |
| Mayo vs Zafina | 3–9 | 25.00% |
| Mayo vs Lidia | 5–7 | 41.67% |
| Mayo vs Claudio | 5–5 | 50.00% |
| Mayo vs Fahkumram | 1–9 | 10.00% |
| Mayo vs Panda | 4–5 | 44.44% |
| Mayo vs Shaheen | 4–3 | 57.14% |
| Mayo vs Raven | 0–4 | 0.00% |
| Mayo vs Miary Zo | 0–2 | 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.