During the weigh-in, when Louden is seen standing next to Shute, it is clear that Shute is twice the size of Louden. Also, when the 101 pounders are weighing in, it is clear that due to their muscular physique, they weigh at least 130 pounds.
In the match between Loudon and Shute, the referee clearly says "no takedown" as they go out of bounds. Yet, when he brings them back to the line, Loudon takes the "down" position and the score is 2-0 in Shute's favor, indicating a takedown has been awarded.
In the match against Shute, just before Louden gets the bloody nose, Shute scores 2 points for a reversal. This should have made the score 10-9 for Shute, however the scoreboard indicates the score is 8-7 Shute, meaning the score did not reflect either wrestlers' previous reversal.
In the final minute of the final match, in addition to one point for the escape and two points for the take down, the referee would also have awarded three points for a near fall which would have made the score 15-13 at the time of the pin.
The goof item below may give away important plot points.
In the final match, in the final minute, the score is 13-9. Louden gets an escape, and a take-down, which should give him 3 points (1 for the escape, 2 for the take-down). The referee does not indicate this, though, and the final score on the scoreboard after the pin (with 0:06 left) is still 13-9, when it should be 13-12.