| Shack684 vs King | 74–143 | 34.10% |
| Shack684 vs Law | 52–119 | 30.41% |
| Shack684 vs Reina | 74–89 | 45.40% |
| Shack684 vs Jin | 60–92 | 39.47% |
| Shack684 vs Kazuya | 43–104 | 29.25% |
| Shack684 vs Steve | 58–89 | 39.46% |
| Shack684 vs Eddy | 30–103 | 22.56% |
| Shack684 vs Bryan | 59–68 | 46.46% |
| Shack684 vs Hwoarang | 52–73 | 41.60% |
| Shack684 vs Lili | 43–51 | 45.74% |
| Shack684 vs Dragunov | 33–53 | 38.37% |
| Shack684 vs Jun | 32–54 | 37.21% |
| Shack684 vs Azucena | 32–46 | 41.03% |
| Shack684 vs Xiaoyu | 25–51 | 32.89% |
| Shack684 vs Yoshimitsu | 29–45 | 39.19% |
| Shack684 vs Asuka | 24–48 | 33.33% |
| Shack684 vs Heihachi | 28–39–1 | 41.79% |
| Shack684 vs Nina | 25–38 | 39.68% |
| Shack684 vs Lars | 20–42 | 32.26% |
| Shack684 vs Victor | 22–38 | 36.67% |
| Shack684 vs Lee | 24–35 | 40.68% |
| Shack684 vs Leroy | 14–44 | 24.14% |
| Shack684 vs Lidia | 22–30–1 | 42.31% |
| Shack684 vs Paul | 19–33 | 36.54% |
| Shack684 vs Feng | 14–34 | 29.17% |
| Shack684 vs Clive | 18–20 | 47.37% |
| Shack684 vs Leo | 15–22 | 40.54% |
| Shack684 vs Alisa | 9–27 | 25.00% |
| Shack684 vs Raven | 10–25 | 28.57% |
| Shack684 vs Devil Jin | 11–21 | 34.38% |
| Shack684 vs Kuma | 6–22 | 21.43% |
| Shack684 vs Jack-8 | 12–15 | 44.44% |
| Shack684 vs Zafina | 10–14 | 41.67% |
| Shack684 vs Claudio | 10–10 | 50.00% |
| Shack684 vs Shaheen | 2–14 | 12.50% |
| Shack684 vs Anna | 7–7 | 50.00% |
| Shack684 vs Armor King | 3–10 | 23.08% |
| Shack684 vs Fahkumram | 6–5 | 54.55% |
| Shack684 vs Miary Zo | 2–2 | 50.00% |
| Shack684 vs Panda | 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.