# Polygon vs Optimism

<figure><img src="/files/XCe7tvBmoBj2QEeVpmmp" alt="" width="344"><figcaption></figcaption></figure>

At the bottom of the Main Menu is a button that allows you to cycle between Overtime (Optimism) and Azuro (Polygon/MATIC) for betting. ETH mainnet is supported for bridging, but all betting takes place on Optimism and Polygon networks.\
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If you prefer one chain over the other, you are welcome to bet on your preferred chain. However, both offer benefits, and Bookiebot's built in bridge makes it easy to take advantage of both.\
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Betting liquidity and odds on Polygon are provided by Azuro, while betting liquidity and odds on Optimism are provided by Overtime. As a result, the available sports, leagues, games, and markets/outcomes may differ from one network to the other. You may find that one provider offers better odds for a game than the other. You may find that one provider has deeper liquidity for a given sport than the other. You may find it worthwhile to explore the available options and odds on both chains, so that you can enjoy the best offerings on both chains.\
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Bookiebot is always working closely with our liquidity partners to provide our users with the best sports betting experience, so we encourage you to regularly explore what is available on both chains, as more markets/outcomes, bet types, and liquidity are added over time.


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