| John5645 vs Reina | 14–23 | 37.84% |
| John5645 vs King | 11–18 | 37.93% |
| John5645 vs Jin | 10–19 | 34.48% |
| John5645 vs Steve | 5–23 | 17.86% |
| John5645 vs Eddy | 8–16 | 33.33% |
| John5645 vs Hwoarang | 3–17 | 15.00% |
| John5645 vs Lili | 3–17 | 15.00% |
| John5645 vs Kazuya | 4–15 | 21.05% |
| John5645 vs Jun | 6–13 | 31.58% |
| John5645 vs Lidia | 3–12 | 20.00% |
| John5645 vs Heihachi | 4–11 | 26.67% |
| John5645 vs Bryan | 5–9 | 35.71% |
| John5645 vs Dragunov | 4–10 | 28.57% |
| John5645 vs Lee | 4–10 | 28.57% |
| John5645 vs Leroy | 6–8 | 42.86% |
| John5645 vs Law | 3–10 | 23.08% |
| John5645 vs Devil Jin | 3–10 | 23.08% |
| John5645 vs Azucena | 5–8 | 38.46% |
| John5645 vs Leo | 3–8 | 27.27% |
| John5645 vs Lars | 0–11 | 0.00% |
| John5645 vs Alisa | 2–9 | 18.18% |
| John5645 vs Victor | 2–9 | 18.18% |
| John5645 vs Xiaoyu | 3–7 | 30.00% |
| John5645 vs Asuka | 1–9 | 10.00% |
| John5645 vs Nina | 4–5 | 44.44% |
| John5645 vs Claudio | 3–5 | 37.50% |
| John5645 vs Paul | 2–5 | 28.57% |
| John5645 vs Yoshimitsu | 4–3 | 57.14% |
| John5645 vs Feng | 2–5 | 28.57% |
| John5645 vs Shaheen | 1–6 | 14.29% |
| John5645 vs Jack-8 | 1–4 | 20.00% |
| John5645 vs Raven | 2–3 | 40.00% |
| John5645 vs Clive | 1–4 | 20.00% |
| John5645 vs Zafina | 0–3 | 0.00% |
| John5645 vs Anna | 1–2 | 33.33% |
| John5645 vs Armor King | 0–2 | 0.00% |
| John5645 vs Miary Zo | 1–0 | 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.