I see several errors, but your syntax error is probably in this line:
Look at the difference between the line above, and the following line.
console.log( "Los jovenes competiran a las 12:30" raceNumber );
console.log("correran 9:30hs", raceNumber + 1000);
You have the same error in one other place. The semicolon there separates your if condition from the block of code. The block of code will always execute regardless of whether or not the condition evaluates to truthy.