Supported books
Every sportsbook BookSync supports today. Each row links to the actual scraper source on GitHub. The rot-risk column is our honest read on which scrapers are most likely to break first when the book ships a redesign.
| Book | Tier | Scraper | Rot risk | Last verified | Source | Report |
|---|---|---|---|---|---|---|
| DraftKings | Tier 1 | v0.2.0 · ring 8.7 | high | never | GitHub | Report broken |
| FanDuel | Tier 1 | v0.2.0 · ring 8.7 | high | never | GitHub | Report broken |
| BetMGM | Tier 1 | v0.2.0 · ring 8.8 | high | never | GitHub | Report broken |
| Caesars | Tier 1 | v0.2.0 · ring 8.8 | medium | never | GitHub | Report broken |
| ESPN BET | Tier 1 | v0.2.0 · ring 8.6 | medium | never | GitHub | Report broken |
| BetRivers | Tier 2 | v0.2.0 · ring 8.8 | medium | never | GitHub | Report broken |
| Fanatics | Tier 2 | v0.2.0 · ring 8.8 | medium | never | GitHub | Report broken |
| Hard Rock | Tier 2 | v0.2.0 · ring 8.8 | medium | never | GitHub | Report broken |
| PrizePicks | DFS | v0.2.0 · ring 8 | low | never | GitHub | Report broken |
| Underdog Fantasy | DFS | v0.2.0 · ring 8.5 | low | never | GitHub | Report broken |
"Last verified: never" reflects zero adoption to date - first user sync produces real DOM signal that flips the column. The scrapers themselves are still working (defensive multi-fallback selectors); we just haven't had a real session to verify against yet.