| HeyHay vs Bryan | 338–279 | 54.78% |
| HeyHay vs King | 241–180 | 57.24% |
| HeyHay vs Kazuya | 222–179 | 55.36% |
| HeyHay vs Heihachi | 191–142 | 57.36% |
| HeyHay vs Steve | 169–150 | 52.98% |
| HeyHay vs Lee | 177–134 | 56.91% |
| HeyHay vs Jin | 152–131 | 53.71% |
| HeyHay vs Hwoarang | 146–136 | 51.77% |
| HeyHay vs Dragunov | 141–133 | 51.46% |
| HeyHay vs Paul | 115–95 | 54.76% |
| HeyHay vs Yoshimitsu | 111–86 | 56.35% |
| HeyHay vs Reina | 112–74 | 60.22% |
| HeyHay vs Law | 95–86 | 52.49% |
| HeyHay vs Lili | 100–66 | 60.24% |
| HeyHay vs Devil Jin | 78–81 | 49.06% |
| HeyHay vs Asuka | 87–65 | 57.24% |
| HeyHay vs Lars | 71–76 | 48.30% |
| HeyHay vs Jun | 75–42 | 64.10% |
| HeyHay vs Azucena | 64–53 | 54.70% |
| HeyHay vs Lidia | 53–55 | 49.07% |
| HeyHay vs Armor King | 44–60 | 42.31% |
| HeyHay vs Xiaoyu | 50–53 | 48.54% |
| HeyHay vs Victor | 59–43 | 57.84% |
| HeyHay vs Feng | 41–58 | 41.41% |
| HeyHay vs Fahkumram | 51–42 | 54.84% |
| HeyHay vs Clive | 36–52 | 40.91% |
| HeyHay vs Eddy | 46–40 | 53.49% |
| HeyHay vs Jack-8 | 48–35 | 57.83% |
| HeyHay vs Shaheen | 36–41 | 46.75% |
| HeyHay vs Nina | 43–31 | 58.11% |
| HeyHay vs Anna | 39–35 | 52.70% |
| HeyHay vs Raven | 35–34 | 50.72% |
| HeyHay vs Claudio | 31–35 | 46.97% |
| HeyHay vs Alisa | 27–29 | 48.21% |
| HeyHay vs Leroy | 30–19 | 61.22% |
| HeyHay vs Leo | 21–26 | 44.68% |
| HeyHay vs Kuma | 23–15 | 60.53% |
| HeyHay vs Zafina | 11–20 | 35.48% |
| HeyHay vs Panda | 12–11 | 52.17% |
| HeyHay vs Miary Zo | 9–8 | 52.94% |
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.