| Yechanwoo vs Kazuya | 149–194 | 43.44% |
| Yechanwoo vs Bryan | 143–151 | 48.64% |
| Yechanwoo vs Paul | 107–184 | 36.77% |
| Yechanwoo vs Dragunov | 100–166 | 37.59% |
| Yechanwoo vs Jin | 85–147 | 36.64% |
| Yechanwoo vs Hwoarang | 74–142 | 34.26% |
| Yechanwoo vs Reina | 86–130 | 39.81% |
| Yechanwoo vs King | 74–140 | 34.58% |
| Yechanwoo vs Steve | 90–96 | 48.39% |
| Yechanwoo vs Asuka | 85–93 | 47.75% |
| Yechanwoo vs Law | 71–96 | 42.51% |
| Yechanwoo vs Lili | 61–71 | 46.21% |
| Yechanwoo vs Victor | 57–68 | 45.60% |
| Yechanwoo vs Azucena | 39–72 | 35.14% |
| Yechanwoo vs Jun | 47–62 | 43.12% |
| Yechanwoo vs Yoshimitsu | 52–51 | 50.49% |
| Yechanwoo vs Nina | 41–60 | 40.59% |
| Yechanwoo vs Feng | 37–62 | 37.37% |
| Yechanwoo vs Xiaoyu | 41–44 | 48.24% |
| Yechanwoo vs Alisa | 33–51 | 39.29% |
| Yechanwoo vs Heihachi | 31–53 | 36.90% |
| Yechanwoo vs Devil Jin | 32–51 | 38.55% |
| Yechanwoo vs Claudio | 27–56 | 32.53% |
| Yechanwoo vs Lars | 35–45 | 43.75% |
| Yechanwoo vs Anna | 38–41 | 48.10% |
| Yechanwoo vs Armor King | 32–46 | 41.03% |
| Yechanwoo vs Fahkumram | 23–52 | 30.67% |
| Yechanwoo vs Clive | 31–43 | 41.89% |
| Yechanwoo vs Jack-8 | 17–47 | 26.56% |
| Yechanwoo vs Eddy | 22–39 | 36.07% |
| Yechanwoo vs Lidia | 21–34 | 38.18% |
| Yechanwoo vs Lee | 20–32 | 38.46% |
| Yechanwoo vs Leroy | 12–35 | 25.53% |
| Yechanwoo vs Raven | 13–29 | 30.95% |
| Yechanwoo vs Zafina | 24–15 | 61.54% |
| Yechanwoo vs Shaheen | 14–23 | 37.84% |
| Yechanwoo vs Kuma | 15–22 | 40.54% |
| Yechanwoo vs Leo | 12–17 | 41.38% |
| Yechanwoo vs Panda | 8–16 | 33.33% |
| Yechanwoo vs Miary Zo | 10–12 | 45.45% |
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.