| MayDayJay vs Law | 21–15 | 58.33% |
| MayDayJay vs Armor King | 10–20 | 33.33% |
| MayDayJay vs Reina | 13–15 | 46.43% |
| MayDayJay vs King | 18–8 | 69.23% |
| MayDayJay vs Jin | 14–11 | 56.00% |
| MayDayJay vs Steve | 13–10 | 56.52% |
| MayDayJay vs Eddy | 10–11 | 47.62% |
| MayDayJay vs Clive | 7–12 | 36.84% |
| MayDayJay vs Dragunov | 7–11 | 38.89% |
| MayDayJay vs Kazuya | 8–8 | 50.00% |
| MayDayJay vs Nina | 10–6 | 62.50% |
| MayDayJay vs Lee | 7–9 | 43.75% |
| MayDayJay vs Leo | 3–12 | 20.00% |
| MayDayJay vs Yoshimitsu | 5–8 | 38.46% |
| MayDayJay vs Miary Zo | 9–4 | 69.23% |
| MayDayJay vs Bryan | 9–3 | 75.00% |
| MayDayJay vs Lidia | 9–3 | 75.00% |
| MayDayJay vs Asuka | 6–5 | 54.55% |
| MayDayJay vs Heihachi | 7–4 | 63.64% |
| MayDayJay vs Hwoarang | 7–3 | 70.00% |
| MayDayJay vs Fahkumram | 8–2 | 80.00% |
| MayDayJay vs Jun | 6–3 | 66.67% |
| MayDayJay vs Xiaoyu | 3–4 | 42.86% |
| MayDayJay vs Jack-8 | 5–2 | 71.43% |
| MayDayJay vs Devil Jin | 4–3 | 57.14% |
| MayDayJay vs Lili | 2–5 | 28.57% |
| MayDayJay vs Leroy | 5–2 | 71.43% |
| MayDayJay vs Raven | 5–2 | 71.43% |
| MayDayJay vs Paul | 3–3 | 50.00% |
| MayDayJay vs Azucena | 4–2 | 66.67% |
| MayDayJay vs Feng | 1–4 | 20.00% |
| MayDayJay vs Lars | 3–2 | 60.00% |
| MayDayJay vs Victor | 1–4 | 20.00% |
| MayDayJay vs Anna | 4–1 | 80.00% |
| MayDayJay vs Alisa | 2–1 | 66.67% |
| MayDayJay vs Claudio | 1–2 | 33.33% |
| MayDayJay vs Shaheen | 2–0 | 100.00% |
| MayDayJay vs Kuma | 2–0 | 100.00% |
| MayDayJay vs Panda | 1–0 | 100.00% |
| MayDayJay vs Zafina | 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.