I wrote an ELO rating system into AmWager a couple years ago but never fully published/finished it.
It is/was similar to ELO systems used in multiplayer-games that compares entrants to each other based on finish. 1st wins vs 2nd. 2nd wins vs 3rd but loses vs 1st and so on down the line.
Ran it on the runners, jockeys and trainers.
The problem I ran into was being and to reliably and programmatically get the full order of finish instead of top X (4-5). Ended up making it so anyone finishing past top X was considered as a loser to the last known finisher.
May have to revisit it and get the last little bit of work done on it.
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Jason Martin
IT Director
AmWest Entertainment - AmWager
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