| Lil Happy vs Kazuya | 89–82 | 52.05% |
| Lil Happy vs King | 94–74 | 55.95% |
| Lil Happy vs Jin | 73–59 | 55.30% |
| Lil Happy vs Law | 60–62 | 49.18% |
| Lil Happy vs Steve | 57–63 | 47.50% |
| Lil Happy vs Armor King | 62–49 | 55.86% |
| Lil Happy vs Miary Zo | 63–48 | 56.76% |
| Lil Happy vs Bryan | 52–56 | 48.15% |
| Lil Happy vs Clive | 57–49 | 53.77% |
| Lil Happy vs Heihachi | 50–52 | 49.02% |
| Lil Happy vs Reina | 47–48 | 49.47% |
| Lil Happy vs Lars | 44–33 | 57.14% |
| Lil Happy vs Paul | 35–38 | 47.95% |
| Lil Happy vs Hwoarang | 28–42 | 40.00% |
| Lil Happy vs Azucena | 42–28 | 60.00% |
| Lil Happy vs Yoshimitsu | 31–35 | 46.97% |
| Lil Happy vs Dragunov | 36–30 | 54.55% |
| Lil Happy vs Lee | 20–42 | 32.26% |
| Lil Happy vs Jun | 24–38 | 38.71% |
| Lil Happy vs Asuka | 27–32 | 45.76% |
| Lil Happy vs Xiaoyu | 21–37 | 36.21% |
| Lil Happy vs Lidia | 32–20 | 61.54% |
| Lil Happy vs Eddy | 29–22 | 56.86% |
| Lil Happy vs Feng | 20–30 | 40.00% |
| Lil Happy vs Lili | 21–28 | 42.86% |
| Lil Happy vs Raven | 30–18 | 62.50% |
| Lil Happy vs Fahkumram | 19–22 | 46.34% |
| Lil Happy vs Devil Jin | 20–16 | 55.56% |
| Lil Happy vs Jack-8 | 14–20 | 41.18% |
| Lil Happy vs Alisa | 14–19 | 42.42% |
| Lil Happy vs Zafina | 17–15 | 53.12% |
| Lil Happy vs Nina | 17–13 | 56.67% |
| Lil Happy vs Leroy | 10–18 | 35.71% |
| Lil Happy vs Leo | 10–16 | 38.46% |
| Lil Happy vs Kuma | 11–14 | 44.00% |
| Lil Happy vs Victor | 13–10 | 56.52% |
| Lil Happy vs Shaheen | 9–10 | 47.37% |
| Lil Happy vs Anna | 5–14 | 26.32% |
| Lil Happy vs Panda | 6–12 | 33.33% |
| Lil Happy vs Claudio | 8–9 | 47.06% |
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.