What are the stat differences between Tentacruel and Mesprit?

Tentacruel stats: HP 80, ATK 70, DEF 65, SP.ATK 80, SP.DEF 120, SPD 100. Mesprit stats: HP 80, ATK 105, DEF 105, SP.ATK 105, SP.DEF 105, SPD 80.

Which Pokemon is faster: Tentacruel or Mesprit?

Tentacruel is faster with 100 speed compared to Mesprit's 80.

Total: 515

WINNER

Total: 580

Tentacruel: 2 wins | Mesprit: 3 wins | 1 ties

80 HP 80

70 Attack +35 105

65 Defense +40 105

80 Sp. Attack +25 105

120 +15 Sp. Defense 105

100 +20 Speed 80

515 Total +65 580

Mesprit has a total stat advantage of 65 points over Tentacruel. Mesprit wins in 3 stat categories while Tentacruel wins in 2.

Tentacruel is faster with 100 speed (20 points faster than Mesprit). This means Tentacruel will likely attack first in battle.