Legalidad sa California
Both are CFTC-regulated event-contract platforms, legal in all 50 US states including California. No state-level differentiation.
Mga market at coverage
Kalshi covers sports, politics, economics, culture, weather, and crypto — the broadest US coverage in the regulated market. Chalkboard is player-prop focused — deep individual-player lines for NBA and NFL, with growing coverage in MLB and NHL. For breadth, Kalshi wins easily. For player-prop depth on Lakers, Warriors, or any individual NBA athlete, Chalkboard wins.
Pagpepresyo at bayarin
Both charge per-contract fees disclosed at order entry, in similar ranges. Kalshi's fees have been more publicly documented over a longer period. Chalkboard's pricing is competitive on player-prop markets where it specializes. Neither has a sportsbook-style house margin.
Karanasan ng user
Kalshi's interface is finance-forward — clean, category-organized, designed for breadth across many market types. Chalkboard's interface is purpose-built for player props — quick player search, line shopping, mobile-first execution. Different jobs, different UIs.
Sino ang dapat gumamit ng alin
Use Kalshi if: you want broad market coverage, you trade politics or macro as well as sports, you want a single prediction market home base. Use Chalkboard if: you primarily trade NBA or NFL player props, you want the cleanest player-prop UX, you already have a broader account elsewhere. Use both if: you want breadth from Kalshi and player-prop depth from Chalkboard — the standard stack for serious California sports traders.