| Chulainn vs King | 90–78 | 53.57% |
| Chulainn vs Jin | 91–77 | 54.17% |
| Chulainn vs Kazuya | 78–71 | 52.35% |
| Chulainn vs Yoshimitsu | 61–82 | 42.66% |
| Chulainn vs Dragunov | 70–68 | 50.72% |
| Chulainn vs Law | 56–63 | 47.06% |
| Chulainn vs Hwoarang | 51–58 | 46.79% |
| Chulainn vs Bryan | 49–60 | 44.95% |
| Chulainn vs Reina | 58–50 | 53.70% |
| Chulainn vs Paul | 32–60 | 34.78% |
| Chulainn vs Lili | 34–57 | 37.36% |
| Chulainn vs Victor | 49–31 | 61.25% |
| Chulainn vs Xiaoyu | 26–51 | 33.77% |
| Chulainn vs Asuka | 29–44 | 39.73% |
| Chulainn vs Devil Jin | 20–50 | 28.57% |
| Chulainn vs Alisa | 33–37 | 47.14% |
| Chulainn vs Eddy | 29–37 | 43.94% |
| Chulainn vs Lee | 40–25 | 61.54% |
| Chulainn vs Steve | 39–25 | 60.94% |
| Chulainn vs Feng | 16–40 | 28.57% |
| Chulainn vs Azucena | 27–29 | 48.21% |
| Chulainn vs Jack-8 | 29–25 | 53.70% |
| Chulainn vs Leroy | 22–32 | 40.74% |
| Chulainn vs Heihachi | 17–33 | 34.00% |
| Chulainn vs Jun | 26–22 | 54.17% |
| Chulainn vs Lars | 22–24 | 47.83% |
| Chulainn vs Leo | 25–17 | 59.52% |
| Chulainn vs Nina | 17–24 | 41.46% |
| Chulainn vs Clive | 11–27 | 28.95% |
| Chulainn vs Claudio | 17–19 | 47.22% |
| Chulainn vs Lidia | 21–15 | 58.33% |
| Chulainn vs Shaheen | 12–22 | 35.29% |
| Chulainn vs Zafina | 9–19 | 32.14% |
| Chulainn vs Anna | 3–16 | 15.79% |
| Chulainn vs Kuma | 10–6 | 62.50% |
| Chulainn vs Raven | 8–7 | 53.33% |
| Chulainn vs Panda | 4–6 | 40.00% |
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.