Predicted Log is a boat handling skill contest. Knowledge of your boatâs performance and navigational skills are a must. Here at the regatta back to back contests are run (Greeley Memorial Trophy and I-LYA II). Each contest consists of four consecutive legs and is scored separately.

The predetermined course is designed around set "Control Points" (navigational aids, buoys, markers, landmarks) which must be passed or rounded, on either the port or starboard side (as indicated) . Calculating your "predicted Log" requires the participant to plot the course on his or her charts in order to find the distances of each leg and compass direction. You must then use the Time-Distance-Speed equation to predict the time you will pass each control point in minutes and seconds (00:00). The only instruments that can be used while running the contest are a compass and the engine tachometer. You may run any chosen speed above 6 knots. It is very important that Speed/RPM data is collected for your boat before the contest is attempted. Participants should also know their compass diviation, because some points are too far apart to be seen easily. This information is necessary to make accurate predictions.

The Predicted Log committee will assign an impartial observer to accompany you as you run the course. His job will be to record the "Actual Times" each mark is rounded. It is important that you let the observer know who will be calling the Control Points, and how. After the start, the contestant has no knowledge of clock or elapsed time. The observer may not share this information with the contestant. Observers are an intregal part of the contest. Each contestant is asked to bring along at least one observer who will be assigned to another boat. A short training class will be held for the observers before the start of the contest.

Results are calculated by the accumulation of error of each leg, divided by the total time on course. This error is expressed as a percentage of the total predicted time for each contest.

The I-LYA Predicted Log Contest is made up of two separate predicted logs run back-to-back (Greeley and I-LYA II). Contestants, by entering this contest, certify that they did not run any complete leg of this course beforehand for the purpose of completing this contest. Each contestant must calculate and turn in to the committee on forms provided, his starting time and clock time to each control point. Each contestant must furnish two watches able to read in hours, minutes and seconds (preferably one digital and one stop watch). Contest will be NACA sanctioned. Trophies and flags will be awarded for first through third positions. There will be a $30.00 entry fee to compete in both contests for those boats not registered in the Regatta.