Hi Jim et al,
The reason Sailwave does not 'score boats by the average time to compete a single lap’ is to reduce the incidence of corrected times, after rounding according to RYA procedure, being equal.
I received the following from the chair of the RYA Race Management Advisrory Panel in answer to a question I received via email from a Sailwave user, on two Lasers being given the same corrected time even though they had recorded finish times 1 second apart.
"I believe Sailwave has scored the boats correctly according to the rule in the Portsmouth Yardstick scheme. That explicitly says that decimals of a second are to be rounded to the nearest second. Because the PY of a Laser Radial is more than 1000 (= 1147) boats that finish one second apart on elapsed time will finish less than one second apart on corrected time (~0.87 seconds apart in fact), and hence may have the same corrected time when rounded to the nearest second as has happened in this case (2064.52s vs 2065.39s both of which round to 2065s). In that case, since they have the same corrected time they are tied, and it is correct to give them the average of the points for the relevant places.
I see no legitimate reason to change the elapsed or corrected time of either boat to change this result ex post. A boat that finishes ahead of another in a handicap race has no legitimate expectation that they will finish ahead (rather than tied) in the final results. The boat that finished a second later has every right to be scored as tied with the boat ahead given that that is the correct result (in my view) under the rules of the Portsmouth Yardstick scheme, notwithstanding that the two boats are of the same class.
If you want to avoid a tie in this situation then I think you need to say in advance (in the NoR and/or SIs) what scheme you are going to use to avoid that. But as this example shows, it is not obvious how you do that i.e. which of the two Laser Radials do you say has tied with the Optimist? One option might be to say that you will not round corrected times to the nearest second, but perhaps to the nearest tenth of a second, but in that case why aren’t you also recording elapsed times to that same level of precision? (Answer of course being that it is practically impossible to do that by eye when sighting along a finishing line)”
A reminder for all Sailwave users, Sailwave rounds corrected times to whole number according to the RYA procedure, i.e. that is corrected times in Sailwave have no decimal portion they are rounded to integer numbers.