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Pythago NRL

Rugby league Elo models, player ratings and statistics

NRL Tips – Round 2, 2019

I mentioned during last week’s tips that the rating systems take a while – give or take six weeks – to dial in to a new season. I was asked during the week what the Jury’s tipping rates look like across the year. I thought that was a good question, so I looked into it:… Read More NRL Tips – Round 2, 2019

March 21, 2019March 31, 2019 pythagonrl

A glance at the NRL with Poseidon ratings

If you read my tips for round 1, you would have seen the Poseidon rating making an appearance. The purpose of the Poseidon rating system is to look at each team’s offensive and defensive capabilities separately, as well as their home and away performance, to see if their winning record is concealing strengths or weaknesses.… Read More A glance at the NRL with Poseidon ratings

March 20, 2019March 26, 2019 pythagonrl

NRL Tips – Round 1, 2019

But first, a refresher This year I’m going to be providing tips for each round of the NRL and the ISC using four mathematical rating systems. None of the four metrics rely on subjective human assessments and instead, each rating system takes in cold, hard numbers and spits out tips. While each tool has a… Read More NRL Tips – Round 1, 2019

March 14, 2019March 21, 2019 pythagonrl

Who has the softest NRL draw in 2019?

The current format of the NRL doesn’t allow for each team to play each other twice. Doing that would mean extending the season by another six weeks and, even if they players were up for that (which they are not), as an armchair analyst, I don’t think I could cope. This means that not every… Read More Who has the softest NRL draw in 2019?

March 12, 2019April 1, 2019 pythagonrl

ISC Tips – Round 1, 2019

Footy’s back, baby! You know, if you don’t count Super League (#COYW awwwoouuu). Anyway, the Intrust Super Cup returns for another year of gritty Queensland/somewhat international rugby league action. I had intended to write a season preview for the QCup but I had a few problems with it. One was a lack of time, another… Read More ISC Tips – Round 1, 2019

March 8, 2019March 14, 2019 pythagonrl

A deep dive for each team’s 2019 NRL season

With the first Maori versus Indigenous All-stars game and another edition of the World Club Challenge in the history books, our attention turns to the NRL season ahead. As with last year, I’m going to do a SWOP – Strength, Weakness, Opportunity and Prospect – analysis for each team. My general philosophy for judging a team’s… Read More A deep dive for each team’s 2019 NRL season

February 27, 2019March 26, 2019 pythagonrl

An updated complete history of the NRL (2019 edition)

Updated on the back of last year’s successful use of graphs to convey the historical progress of NRL clubs, this year’s complete history now includes the stats and Eratosthenes movements from the 2018 season for each club.

February 5, 2019March 13, 2019 pythagonrl

A complete history of the Queensland Cup

Last year, I did a series of graphs which told each NRL team’s history in the top flight since 1998. Despite expectations, it was pretty well received compared to the one I was expecting to generate a bit of interest. Now that we have all of the Queensland Cup results, I thought I’d run the same… Read More A complete history of the Queensland Cup

January 28, 2019March 8, 2019 pythagonrl

Primer – PPG and WARG

Turns out that StatScore didn’t pan out the way I had hoped. There were some conceptual errors but the biggest was that I wanted a measure of rate and a measure of volume and you can’t have one statistic that does both. It’s like having one number that meaningfully states that a boxer is both… Read More Primer – PPG and WARG

January 22, 2019February 27, 2019 pythagonrl

Primer – Poseidon ratings

Poseidon ratings are a new team rating system for both the NRL and the Queensland Cup. For those who don’t have time to read 2000+ words, here’s the short version: the purpose of Poseidon ratings is to assess the offensive and defensive capabilities of rugby league teams in terms of the number of tries they… Read More Primer – Poseidon ratings

January 17, 2019January 28, 2019 pythagonrl

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