Nathan Donald "Nate" Diaz (born April 16, 1985) is an American professional mixed martial artist currently competing for the Ultimate Fighting Championship (UFC). He was the winner of The Ultimate Fighter 5. Prior to signing with the UFC, Diaz competed in World Extreme Cagefighting, Strikeforce, and Pancrase.
Nate Diaz competed in World Extreme Cagefighting.
Assess the veracity of the claim based on the provided evidence.

Claim: Nate Diaz competed in World Extreme Cagefighting.

Evidence: Nathan Donald "Nate" Diaz (born April 16, 1985) is an American professional mixed martial artist currently competing for the Ultimate Fighting Championship (UFC). He was the winner of The Ultimate Fighter 5. Prior to signing with the UFC, Diaz competed in World Extreme Cagefighting, Strikeforce, and Pancrase.

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Assess the veracity of the claim based on the provided evidence.

Claim: Nate Diaz competed in World Extreme Cagefighting.

Evidence: Nathan Donald "Nate" Diaz (born April 16, 1985) is an American professional mixed martial artist currently competing for the Ultimate Fighting Championship (UFC). He was the winner of The Ultimate Fighter 5. Prior to signing with the UFC, Diaz competed in World Extreme Cagefighting, Strikeforce, and Pancrase.

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 - supported

 - refuted

 - not enough information
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