| Helloween vs Bryan | 73–54 | 57.48% |
| Helloween vs Jack-8 | 56–41 | 57.73% |
| Helloween vs Yoshimitsu | 44–52 | 45.83% |
| Helloween vs Kazuya | 51–43 | 54.26% |
| Helloween vs Hwoarang | 41–43 | 48.81% |
| Helloween vs Jun | 36–44 | 45.00% |
| Helloween vs Dragunov | 43–34 | 55.84% |
| Helloween vs King | 53–23 | 69.74% |
| Helloween vs Clive | 38–38 | 50.00% |
| Helloween vs Nina | 44–29 | 60.27% |
| Helloween vs Paul | 35–37 | 48.61% |
| Helloween vs Jin | 41–30 | 57.75% |
| Helloween vs Law | 50–20 | 71.43% |
| Helloween vs Reina | 44–23 | 65.67% |
| Helloween vs Asuka | 38–28 | 57.58% |
| Helloween vs Feng | 32–33 | 49.23% |
| Helloween vs Claudio | 32–32 | 50.00% |
| Helloween vs Steve | 33–30 | 52.38% |
| Helloween vs Lee | 34–29 | 53.97% |
| Helloween vs Lidia | 36–26 | 58.06% |
| Helloween vs Xiaoyu | 36–24 | 60.00% |
| Helloween vs Devil Jin | 31–25 | 55.36% |
| Helloween vs Heihachi | 33–22 | 60.00% |
| Helloween vs Alisa | 35–19 | 64.81% |
| Helloween vs Shaheen | 23–26 | 46.94% |
| Helloween vs Eddy | 34–15 | 69.39% |
| Helloween vs Azucena | 24–22 | 52.17% |
| Helloween vs Victor | 19–27 | 41.30% |
| Helloween vs Fahkumram | 20–25 | 44.44% |
| Helloween vs Leo | 26–18 | 59.09% |
| Helloween vs Lars | 19–25 | 43.18% |
| Helloween vs Kuma | 25–16 | 60.98% |
| Helloween vs Lili | 20–19 | 51.28% |
| Helloween vs Leroy | 12–27 | 30.77% |
| Helloween vs Raven | 20–14 | 58.82% |
| Helloween vs Anna | 16–16 | 50.00% |
| Helloween vs Panda | 17–10 | 62.96% |
| Helloween vs Zafina | 11–14 | 44.00% |
| Helloween vs Armor King | 11–6 | 64.71% |
| Helloween vs Miary Zo | 14–3 | 82.35% |
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.