| Jack Efron vs King | 51–37 | 57.95% |
| Jack Efron vs Kazuya | 46–37 | 55.42% |
| Jack Efron vs Jin | 38–31 | 55.07% |
| Jack Efron vs Hwoarang | 33–28 | 54.10% |
| Jack Efron vs Law | 24–36 | 40.00% |
| Jack Efron vs Bryan | 28–32 | 46.67% |
| Jack Efron vs Reina | 37–23 | 61.67% |
| Jack Efron vs Heihachi | 20–30 | 40.00% |
| Jack Efron vs Lili | 26–23 | 53.06% |
| Jack Efron vs Eddy | 16–27 | 37.21% |
| Jack Efron vs Yoshimitsu | 16–25 | 39.02% |
| Jack Efron vs Dragunov | 22–17 | 56.41% |
| Jack Efron vs Paul | 13–25 | 34.21% |
| Jack Efron vs Leo | 13–25 | 34.21% |
| Jack Efron vs Steve | 19–18 | 51.35% |
| Jack Efron vs Asuka | 18–19 | 48.65% |
| Jack Efron vs Lee | 20–17 | 54.05% |
| Jack Efron vs Lidia | 23–14 | 62.16% |
| Jack Efron vs Xiaoyu | 13–23 | 36.11% |
| Jack Efron vs Lars | 20–14 | 58.82% |
| Jack Efron vs Jun | 17–15 | 53.12% |
| Jack Efron vs Azucena | 17–14–1 | 54.84% |
| Jack Efron vs Nina | 11–19 | 36.67% |
| Jack Efron vs Alisa | 14–14 | 50.00% |
| Jack Efron vs Victor | 10–14 | 41.67% |
| Jack Efron vs Clive | 10–14 | 41.67% |
| Jack Efron vs Feng | 8–13 | 38.10% |
| Jack Efron vs Raven | 13–8 | 61.90% |
| Jack Efron vs Kuma | 6–13 | 31.58% |
| Jack Efron vs Jack-8 | 6–9 | 40.00% |
| Jack Efron vs Armor King | 6–7 | 46.15% |
| Jack Efron vs Claudio | 5–7 | 41.67% |
| Jack Efron vs Anna | 5–7 | 41.67% |
| Jack Efron vs Zafina | 5–6 | 45.45% |
| Jack Efron vs Devil Jin | 7–3 | 70.00% |
| Jack Efron vs Leroy | 3–7 | 30.00% |
| Jack Efron vs Panda | 2–5 | 28.57% |
| Jack Efron vs Shaheen | 5–0 | 100.00% |
| Jack Efron vs Fahkumram | 1–1 | 50.00% |
| Jack Efron vs Miary Zo | 2–0 | 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.