| Major Mayhem vs Kazuya | 118–79 | 59.90% |
| Major Mayhem vs Jin | 99–56 | 63.87% |
| Major Mayhem vs Reina | 93–47 | 66.43% |
| Major Mayhem vs Dragunov | 48–47 | 50.53% |
| Major Mayhem vs Bryan | 64–30 | 68.09% |
| Major Mayhem vs Heihachi | 60–31 | 65.93% |
| Major Mayhem vs Steve | 52–36 | 59.09% |
| Major Mayhem vs Paul | 29–39 | 42.65% |
| Major Mayhem vs Yoshimitsu | 34–34 | 50.00% |
| Major Mayhem vs Azucena | 47–21 | 69.12% |
| Major Mayhem vs King | 32–34 | 48.48% |
| Major Mayhem vs Victor | 37–26 | 58.73% |
| Major Mayhem vs Devil Jin | 27–21 | 56.25% |
| Major Mayhem vs Eddy | 28–19 | 59.57% |
| Major Mayhem vs Hwoarang | 16–29 | 35.56% |
| Major Mayhem vs Lili | 19–26 | 42.22% |
| Major Mayhem vs Lars | 20–21 | 48.78% |
| Major Mayhem vs Law | 14–26 | 35.00% |
| Major Mayhem vs Asuka | 21–14 | 60.00% |
| Major Mayhem vs Jun | 19–14 | 57.58% |
| Major Mayhem vs Xiaoyu | 17–15 | 53.12% |
| Major Mayhem vs Feng | 19–13 | 59.38% |
| Major Mayhem vs Claudio | 18–14 | 56.25% |
| Major Mayhem vs Lee | 10–22 | 31.25% |
| Major Mayhem vs Lidia | 18–13 | 58.06% |
| Major Mayhem vs Nina | 17–12 | 58.62% |
| Major Mayhem vs Leo | 9–12 | 42.86% |
| Major Mayhem vs Alisa | 12–8 | 60.00% |
| Major Mayhem vs Leroy | 11–8 | 57.89% |
| Major Mayhem vs Jack-8 | 11–7 | 61.11% |
| Major Mayhem vs Zafina | 7–11 | 38.89% |
| Major Mayhem vs Shaheen | 8–9 | 47.06% |
| Major Mayhem vs Kuma | 11–4 | 73.33% |
| Major Mayhem vs Raven | 8–7 | 53.33% |
| Major Mayhem vs Clive | 7–6 | 53.85% |
| Major Mayhem vs Panda | 3–3 | 50.00% |
| Major Mayhem vs Miary Zo | 4–2 | 66.67% |
| Major Mayhem vs Armor King | 2–2 | 50.00% |
| Major Mayhem vs Anna | 2–0 | 100.00% |
| Major Mayhem vs Fahkumram | 2–0 | 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.