| John Cena vs King | 51–49 | 51.00% |
| John Cena vs Law | 35–36 | 49.30% |
| John Cena vs Dragunov | 23–33 | 41.07% |
| John Cena vs Bryan | 17–35 | 32.69% |
| John Cena vs Kazuya | 20–29 | 40.82% |
| John Cena vs Hwoarang | 28–19 | 59.57% |
| John Cena vs Jin | 20–25 | 44.44% |
| John Cena vs Jun | 23–18 | 56.10% |
| John Cena vs Paul | 17–23 | 42.50% |
| John Cena vs Victor | 21–15 | 58.33% |
| John Cena vs Steve | 14–19 | 42.42% |
| John Cena vs Eddy | 16–13 | 55.17% |
| John Cena vs Feng | 15–8 | 65.22% |
| John Cena vs Alisa | 10–13 | 43.48% |
| John Cena vs Heihachi | 7–16 | 30.43% |
| John Cena vs Yoshimitsu | 6–16 | 27.27% |
| John Cena vs Lars | 6–16 | 27.27% |
| John Cena vs Lili | 10–11 | 47.62% |
| John Cena vs Jack-8 | 6–14 | 30.00% |
| John Cena vs Leroy | 9–10 | 47.37% |
| John Cena vs Raven | 7–9 | 43.75% |
| John Cena vs Asuka | 7–8 | 46.67% |
| John Cena vs Nina | 8–7 | 53.33% |
| John Cena vs Lee | 8–7 | 53.33% |
| John Cena vs Xiaoyu | 8–6 | 57.14% |
| John Cena vs Reina | 6–6 | 50.00% |
| John Cena vs Kuma | 4–7 | 36.36% |
| John Cena vs Devil Jin | 6–4 | 60.00% |
| John Cena vs Zafina | 3–4 | 42.86% |
| John Cena vs Panda | 2–4 | 33.33% |
| John Cena vs Leo | 2–3 | 40.00% |
| John Cena vs Lidia | 2–3 | 40.00% |
| John Cena vs Claudio | 0–3 | 0.00% |
| John Cena vs Shaheen | 1–1 | 50.00% |
| John Cena vs Azucena | 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.