| John Fortnight vs Armor King | 13–10 | 56.52% |
| John Fortnight vs Steve | 10–7 | 58.82% |
| John Fortnight vs King | 5–8 | 38.46% |
| John Fortnight vs Eddy | 5–4 | 55.56% |
| John Fortnight vs Dragunov | 2–5 | 28.57% |
| John Fortnight vs Reina | 5–2 | 71.43% |
| John Fortnight vs Victor | 4–3 | 57.14% |
| John Fortnight vs Jin | 2–4 | 33.33% |
| John Fortnight vs Shaheen | 6–0 | 100.00% |
| John Fortnight vs Heihachi | 2–4 | 33.33% |
| John Fortnight vs Miary Zo | 4–1 | 80.00% |
| John Fortnight vs Hwoarang | 2–2 | 50.00% |
| John Fortnight vs Bryan | 2–2 | 50.00% |
| John Fortnight vs Jun | 3–1 | 75.00% |
| John Fortnight vs Fahkumram | 1–3 | 25.00% |
| John Fortnight vs Lili | 2–1 | 66.67% |
| John Fortnight vs Leo | 3–0 | 100.00% |
| John Fortnight vs Lidia | 1–2 | 33.33% |
| John Fortnight vs Clive | 1–2 | 33.33% |
| John Fortnight vs Law | 0–2 | 0.00% |
| John Fortnight vs Yoshimitsu | 1–1 | 50.00% |
| John Fortnight vs Lars | 2–0 | 100.00% |
| John Fortnight vs Azucena | 2–0 | 100.00% |
| John Fortnight vs Xiaoyu | 1–0 | 100.00% |
| John Fortnight vs Kazuya | 1–0 | 100.00% |
| John Fortnight vs Jack-8 | 1–0 | 100.00% |
| John Fortnight vs Devil Jin | 1–0 | 100.00% |
| John Fortnight vs Feng | 1–0 | 100.00% |
| John Fortnight vs Alisa | 1–0 | 100.00% |
| John Fortnight vs Lee | 0–1 | 0.00% |
| John Fortnight vs Kuma | 0–1 | 0.00% |
| John Fortnight vs Leroy | 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.