Lacrosse Analytics

D1 Mens Lacrosse
laxreference
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Re: Lacrosse Analytics

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A few games still trickling into the ole database, but here are some updated standings:

Updated Lax-ELO has Georgetown as our new No. 1, although they are going to lose that distinction if Cornell wins tomorrow.

The updated RPI rankings has Yale and UVA 1/2 and then a Big East logjam after that.

Sowers held on to his lead in the Statistical Tewaaraton table but Army's Nichtern is nipping at his heels.

If you want to relive any of the day's games, see the game links below. And buckle up for Michigan/Yale I guess?
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Re: Lacrosse Analytics

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Updated list of Live Win Probability Links

- Villanova vs Drexel
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Re: Lacrosse Analytics

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Updated list of Live Win Probability Links

- Villanova vs Drexel
- Brown vs Virginia
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Re: Lacrosse Analytics

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Updated list of Live Win Probability Links

- Air Force vs Canisius
- Villanova vs Drexel
- Brown vs Virginia
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Re: Lacrosse Analytics

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Updated list of Live Win Probability Links

- Saint Joseph's vs Penn
- Air Force vs Canisius
- Villanova vs Drexel
- Brown vs Virginia
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Re: Lacrosse Analytics

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CU77
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Re: Lacrosse Analytics

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PSU win probability at 100% near the end until it suddenly plunges to zero!
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Re: Lacrosse Analytics

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CU77 wrote: Sun Mar 08, 2020 6:39 pm PSU win probability at 100% near the end until it suddenly plunges to zero!
That was an absolutely insane game. The kind of game that win probabilities were invented for (not by me, but you know what I mean).
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Re: Lacrosse Analytics

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Hot of the presses, here are the top individual statistical performances of the past week. No extra credit for goals scored after intense one-on-one battles to save the game for your team, sorry.

Here is the visual-version as well.

PlayerGame_visualization_20200309_v2.png
PlayerGame_visualization_20200309_v2.png (56.65 KiB) Viewed 4459 times
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Re: Lacrosse Analytics

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It may not be an especially hyped one, but there is a game today...

Cleveland State vs Mercer
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Re: Lacrosse Analytics

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I just took a look at your RPI calculation at
https://lacrossereference.com/stats/rpi-d1-men-lacrosse
and i think you're doing it wrong. You seem to be computing opponents' winning percentage by taking total opponent wins and dividing by total opponent games played. This is not how the NCAA does it. The NCAA takes each opponent's winning percentage, omitting games against the team being rated, and then averages these winning percentages. Same for opponents' opponents' winning percentage; games against the opponent are omitted, but games against the team being rated are included. (Dumb dumb dumb all around, but that's what they do.)
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Re: Lacrosse Analytics

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CU77 wrote: Tue Mar 10, 2020 12:15 am I just took a look at your RPI calculation at
https://lacrossereference.com/stats/rpi-d1-men-lacrosse
and i think you're doing it wrong. You seem to be computing opponents' winning percentage by taking total opponent wins and dividing by total opponent games played. This is not how the NCAA does it. The NCAA takes each opponent's winning percentage, omitting games against the team being rated, and then averages these winning percentages. Same for opponents' opponents' winning percentage; games against the opponent are omitted, but games against the team being rated are included. (Dumb dumb dumb all around, but that's what they do.)
Was there a particular team or example that you used to check this? I believe I put in logic to remove the team being rated from the calc, but it's certainly possible that I didn't do it correctly. If you have a specific example, I can use that to double check.
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Re: Lacrosse Analytics

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laxreference wrote: Tue Mar 10, 2020 4:33 am If you have a specific example, I can use that to double check.
Never mind, I can see the issue too. Think I know what the problem is. Working on it now.
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Re: Lacrosse Analytics

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Pretty decent slate today. ND/OSU is probably the biggest one in terms of tournament implications, but we are starting off early with North Carolina vs Bryant
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Re: Lacrosse Analytics

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CU77 wrote: Tue Mar 10, 2020 12:15 am I just took a look at your RPI calculation at
https://lacrossereference.com/stats/rpi-d1-men-lacrosse
and i think you're doing it wrong. You seem to be computing opponents' winning percentage by taking total opponent wins and dividing by total opponent games played. This is not how the NCAA does it. The NCAA takes each opponent's winning percentage, omitting games against the team being rated, and then averages these winning percentages. Same for opponents' opponents' winning percentage; games against the opponent are omitted, but games against the team being rated are included. (Dumb dumb dumb all around, but that's what they do.)

Ok, RPI table has been updated. You were right. The games against the team being measured have been removed from the 2nd and 3rd factors.
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Re: Lacrosse Analytics

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Updated list of Live Win Probability Links

- UMass vs LIU
- North Carolina vs Bryant
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Re: Lacrosse Analytics

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Updated list of Live Win Probability Links

- Siena vs Fairfield
- St. John's vs Hofstra
- UMass vs LIU
- North Carolina vs Bryant
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Re: Lacrosse Analytics

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