Showing posts with label playoffs. Show all posts
Showing posts with label playoffs. Show all posts

Monday, October 11, 2010

USCL Simulation after Week 8 Monday

UPDATED! Now includes Western Division!

Chance of making playoffs (100,000 simulated Wednesday Week 8s and Weeks 9 and 10)

Eastern Division
New England 100.00%
Boston 98.85%
New York 97.44%
Baltimore 92.29%
Manhattan 11.27%
New Jersey 0.79%
Philadelphia 0.00%
Carolina 0.14%


Western Division
Arizona 99.99%
Chicago 85.45%
San Francisco 69.28%
St. Louis 35.04%
Seattle 30.48%
Miami 18.73%
Los Angeles 16.68%
Dallas 49.12%

Note that Arizona made the playoffs in 99,991 of the 100,000 simulations!




















Sunday, October 10, 2010

Remainder of Season Simulation

I have expanded on my prior projects to determine the likelihood that a team will make the playoffs this season. As I said previously, the ability to be comprehensive in all possibilities of match outcomes eats into years of computing time, so simulation is an obvious answer.

I created a simulation that attempts to model all the matches in the remainder of the USCL season.

The goal was the same -- what is the chance that a team will make the playoffs. This time, however, I included by match points and the game points tiebreaker. (If a team was tied for a playoff spot with the same match and game points, I said they both would make the playoffs -- I didn't go beyond the first tiebreaker.)

To do this, I made several other assumptions.
  1. All teams have the same strength. Therefore, they have the same chances in each match against their opponents.
  2. The game point results of the match follow the historical distribution of USCL matches (which is here). That is, 2.5-1.5 is more common than 3-1, which is more common than 3.5-0.5, etc.
I ran 100,000 simulations for both the Eastern and Western division. Here are the results, where the percentages indicate a tie for fourth place or better.

Eastern Division (Chance to make playoffs)

New England 100.00%
Boston 98.43%
New York 97.49%
Baltimore 70.27%
Manhattan 24.79%
New Jersey 6.92%
Philadelphia 2.69%
Carolina 0.61%

Western Division (Chance to make playoffs)

Arizona 97.18%
Chicago 86.54%
San Francisco 78.07%
St. Louis 45.24%
Seattle 35.50%
Miami 27.39%
Los Angeles 23.44%
Dallas 12.92%


I also included the chance that a team will receive draw odds in the first round of the playoffs (tied for second place or better).

Eastern Division (Chance have draw odds first round of playoffs)

New England 98.37%
Boston 55.19%
New York 41.63%
Baltimore 4.90%
Manhattan 0.23%
New Jersey 0.00%
Philadelphia 0.00%
Carolina 0.00%

Western Division (Chance have draw odds first round of playoffs)

Arizona 80.94%
Chicago 50.92%
San Francisco 40.50%
St. Louis 13.13%
Seattle 7.55%
Miami 6.01%
Los Angeles 3.60%
Dallas 1.25%

Any scenarios you want me to run? Things like: If NJ wins the remainder of their matches 4-0, what's their chance to get in the playoffs... things like that....

Let me know in the comments...

Friday, October 08, 2010

USCL Western Division: Playoff Hunt

In my previous post, I posted the chances of at least tying for fourth place in the USCL Eastern Division. You can read about the method I used in that post.

I ran the same thing for the Western Division. Here is the percentage that each team will finish in at least a tie for fourth in match points.

99.14% Arizona
95.70% Chicago
82.20% San Francisco
61.70% St. Louis
35.96% Seattle
35.69% Miami
34.61% Los Angeles
15.31% Dallas

USCL Eastern Division: Playoff Hunt

There are three weeks to go in the USCL regular season. What are the chances that any particular team will be in playoff contention?

Let's assume for the moment that all teams are equally matched, and that all teams have an equal chance to win, draw, or lose a match with every other team. Therefore, each match can have three possible results.

In the Eastern Division of the USCL, there are twelve matches left and therefore there are 3^12 (three to the twelfth power) possible results (in terms of match results). That's 531, 441 possibilities.

If we make the criterion for "possibly in the playoffs" to be tied for fourth or better, then the percentages below indicate what a team's chances to possibly be in the playoffs.

100.00% - New England
99.55% - Boston
98.27% - New York
74.75% - Baltimore
41.28% - Manhattan
10.32% - New Jersey
3.05% - Philadelphia
1.21% - Carolina

Now, if we take game points (the first tiebreaker) into consideration, that increases the number of possibilities to 9^12 power, which is actually 531,441 times bigger than the last time. Since the simulation presented here took about 4 seconds to run on my computer, the code for including game points is about 50% more complex (increasing time to completion by about 50%), it would take over 553 days for the simulation to run!

I think I'll wait for the actual results.

Anyone interested in me doing this for the Western Division too?