| Lil Mayo vs Kazuya | 178–160 | 52.66% |
| Lil Mayo vs Jin | 150–140–1 | 51.72% |
| Lil Mayo vs Bryan | 170–116 | 59.44% |
| Lil Mayo vs King | 135–145 | 48.21% |
| Lil Mayo vs Hwoarang | 111–115 | 49.12% |
| Lil Mayo vs Dragunov | 121–101 | 54.50% |
| Lil Mayo vs Paul | 111–87 | 56.06% |
| Lil Mayo vs Steve | 84–110 | 43.30% |
| Lil Mayo vs Lars | 89–90 | 49.72% |
| Lil Mayo vs Lili | 102–76 | 57.30% |
| Lil Mayo vs Lee | 92–81 | 53.18% |
| Lil Mayo vs Heihachi | 79–89 | 47.02% |
| Lil Mayo vs Law | 84–82 | 50.60% |
| Lil Mayo vs Yoshimitsu | 88–73 | 54.66% |
| Lil Mayo vs Devil Jin | 86–65 | 56.95% |
| Lil Mayo vs Feng | 90–58 | 60.81% |
| Lil Mayo vs Reina | 75–68 | 52.45% |
| Lil Mayo vs Asuka | 71–68 | 51.08% |
| Lil Mayo vs Jack-8 | 62–70 | 46.97% |
| Lil Mayo vs Zafina | 74–58 | 56.06% |
| Lil Mayo vs Victor | 76–53 | 58.91% |
| Lil Mayo vs Nina | 54–72 | 42.86% |
| Lil Mayo vs Leo | 60–56 | 51.72% |
| Lil Mayo vs Claudio | 63–52 | 54.78% |
| Lil Mayo vs Alisa | 69–45 | 60.53% |
| Lil Mayo vs Xiaoyu | 58–49 | 54.21% |
| Lil Mayo vs Azucena | 52–53 | 49.52% |
| Lil Mayo vs Raven | 50–54 | 48.08% |
| Lil Mayo vs Jun | 53–46 | 53.54% |
| Lil Mayo vs Eddy | 45–51 | 46.88% |
| Lil Mayo vs Leroy | 55–39 | 58.51% |
| Lil Mayo vs Anna | 39–50 | 43.82% |
| Lil Mayo vs Lidia | 38–49 | 43.68% |
| Lil Mayo vs Armor King | 37–32 | 53.62% |
| Lil Mayo vs Clive | 37–30 | 55.22% |
| Lil Mayo vs Kuma | 38–28 | 57.58% |
| Lil Mayo vs Shaheen | 36–26 | 58.06% |
| Lil Mayo vs Fahkumram | 28–21 | 57.14% |
| Lil Mayo vs Miary Zo | 19–22 | 46.34% |
| Lil Mayo vs Panda | 13–17 | 43.33% |
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.