| MegaJohn vs Kazuya | 103–122 | 45.78% |
| MegaJohn vs Jin | 98–106 | 48.04% |
| MegaJohn vs Bryan | 71–79 | 47.33% |
| MegaJohn vs Law | 51–84 | 37.78% |
| MegaJohn vs Reina | 67–61 | 52.34% |
| MegaJohn vs Hwoarang | 62–64 | 49.21% |
| MegaJohn vs King | 57–68 | 45.60% |
| MegaJohn vs Steve | 35–88 | 28.46% |
| MegaJohn vs Heihachi | 47–71 | 39.83% |
| MegaJohn vs Yoshimitsu | 46–52 | 46.94% |
| MegaJohn vs Paul | 43–51 | 45.74% |
| MegaJohn vs Lili | 58–36 | 61.70% |
| MegaJohn vs Dragunov | 36–53 | 40.45% |
| MegaJohn vs Asuka | 36–42 | 46.15% |
| MegaJohn vs Eddy | 45–31 | 59.21% |
| MegaJohn vs Jun | 34–39 | 46.58% |
| MegaJohn vs Azucena | 30–37 | 44.78% |
| MegaJohn vs Devil Jin | 10–55 | 15.38% |
| MegaJohn vs Nina | 30–31 | 49.18% |
| MegaJohn vs Victor | 25–36 | 40.98% |
| MegaJohn vs Lee | 21–38 | 35.59% |
| MegaJohn vs Lars | 28–28 | 50.00% |
| MegaJohn vs Armor King | 23–32 | 41.82% |
| MegaJohn vs Feng | 21–31 | 40.38% |
| MegaJohn vs Alisa | 19–28 | 40.43% |
| MegaJohn vs Lidia | 18–28 | 39.13% |
| MegaJohn vs Xiaoyu | 25–14 | 64.10% |
| MegaJohn vs Raven | 17–19 | 47.22% |
| MegaJohn vs Jack-8 | 12–18 | 40.00% |
| MegaJohn vs Clive | 14–16 | 46.67% |
| MegaJohn vs Miary Zo | 19–9 | 67.86% |
| MegaJohn vs Leo | 18–9 | 66.67% |
| MegaJohn vs Leroy | 14–13 | 51.85% |
| MegaJohn vs Claudio | 5–15 | 25.00% |
| MegaJohn vs Fahkumram | 8–12 | 40.00% |
| MegaJohn vs Zafina | 8–11 | 42.11% |
| MegaJohn vs Anna | 6–9 | 40.00% |
| MegaJohn vs Kuma | 6–7 | 46.15% |
| MegaJohn vs Shaheen | 3–5 | 37.50% |
| MegaJohn vs Panda | 0–4 | 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.