On a related note, I had a protest last year that occurred after the Preparatory Signal but before the Starting Signal between boats on opposite tacks that resulted in serious damage. Neither boat started but the starboard tack boat protested. The protest form met the various validity requirements of RRS 60.4, but I asked myself why the starboard tack boat protested since the port tack boat had withdrawn.
The answer was that although the event was in the USA and run according to US Sailing rules and prescriptions, the starboard tack boat (that suffered serious damage) was Canadian and was perhaps thinking of the Sail Canada Prescription to RRS 65.1:
 "Rule 65.1 – Legal Liability and Costs Sail Canada prescribes that a boat that has been found by a protest committee to have broken a rule and caused damage shall be considered at fault for the purposes of rule 65.1."
This, of course, is in contrast to the US Sailing Prescription:
"US Sailing prescribes that
(a) A boat that retires from a race or accepts a penalty does not, by that action alone, admit liability for monetary damages. 
(b) A protest committee shall find facts and make decisions only in compliance with the rules. No protest committee or US Sailing appeal authority shall adjudicate any claim for monetary damages. Such a claim is subject to the jurisdiction of the courts. 
(c) A basic purpose of the rules is to prevent contact between boats. By participating in an event governed by the rules, a boat agrees that responsibility for monetary damages arising from any breach of the rules shall be based on fault as determined by application of the rules, and that she shall not 2 be governed by the legal doctrine of ‘assumption of risk’ for monetary damages resulting from contact with other boats."
We found the protest valid and:
- The port tack boat had broken rules 10 and 14;
- The starboard tack boat had broken rule 14; and
- Because both boats had withdrawn, no further penalty was assessed.

Thank you Chin In.

I'm with John.
Experienced judges will be able to 'dial down' the skill level they consider reasonable.
We aim to provide a service for the sailors and, while we need to be consistent,it needs to be at the level of their experience.

This appears to be a very old conversation. While I loved Sail100 I have seen comments that it no longer works with the current versions of Excel. KSail is the current go-to platform for results services and very good at it. That said, I an not convincd that Swiss Lague does what it says. I am no mathemetician but the "shall not meet again" criteria does appear to be critical. It can result in a bounce effect, and we still get a number of matches which are not competitive. I have a sneaking feeling that the older system of grading competitors in a series of leagues and then going gold silver bronze leagues MAY have prodced better racing. 

Al, not sure the 2nd or 3rd bullet are correct. 

The definition Leeward Windward says "When two boats on the same tack overlap, the one on the leeward side of the other is the leeward boat. The other is the windward boat." As neither boat is on the leeward side of the other, there is no leeward boat, so there cannot be a windward boat. Rule 11 does not require either boat to keep clear of the other boat. Which means rules 15, 16, and 17 of Section B which limit the actions of a right-of-way boat do not apply.