San Diego Boys Lacrosse Power Rankings

When the popular LaxPower website shut down last offseason, MaxLax undertook a project to create our own mathematical formula to compare teams in order to give fans — and coaches and players — an additional method of comparing teams.

Here is our first calculation of the 2019 San Diego boys high school lacrosse power ratings:

Week Ending April 13, 2019

(Scores through Saturday, April 13)

Rank Team Record Power Rating SOS SOS Rank
1 Torrey Pines (11-2) 96.83 90.36 1
2 La Costa Canyon (8-5) 93.09 88.66 2
3 La Jolla (10-0) 91.04 83.82 10
4 Cathedral Catholic (9-2) 88.76 85.65 7
5 San Marcos-SD (6-5) 87.69 86.08 5
6 Coronado (9-3) 87.62 85.84 6
7 Santa Fe Christian (9-1) 86.93 79.43 17
8 St. Augustine (7-2) 86.56 80.38 15
9 Poway (6-7) 86.15 86.83 4
10 Grossmont (14-0) 86.04 74.99 23
11 Westview (5-7) 84.09 84.64 9
12 Bishop’s School (1-8) 82.80 88.17 3
13 Rancho Bernardo (5-7) 82.64 84.66 8
14 Carlsbad (4-7) 82.56 83.73 11
15 La Jolla Country Day (6-4) 81.97 79.76 16
16 Valley Center (9-4) 81.85 75.94 20
17 Granite Hills (8-3) 81.19 73.46 25
18 Del Norte (3-9) 79.36 83.37 12
19 Eastlake (6-5) 78.74 75.54 22
20 Patrick Henry (5-6) 78.03 79.42 18
21 Canyon Crest Academy (5-7) 77.56 80.70 14
22 Pacific Ridge (4-6) 76.11 76.91 19
23 Scripps Ranch (1-7) 76.08 81.99 13
24 Francis Parker (9-3) 75.41 69.27 32
25 Fallbrook (10-2) 74.14 65.14 39
26 Mt. Carmel (5-9) 73.96 75.61 21
27 Helix (10-4) 73.09 71.69 26
28 Valhalla (9-5) 71.74 69.95 30
29 Point Loma (6-6) 71.31 71.26 27
30 San Dieguito Academy (7-6) 69.52 71.11 28
31 Santana (8-8) 69.30 68.68 34
32 El Capitan (5-8) 68.93 70.36 29
33 El Camino (3-10) 68.56 74.41 24
34 Hilltop (7-7) 68.07 67.08 36
35 Mission Bay (6-2) 67.54 60.34 46
36 Del Lago Academy (9-6) 67.39 63.64 41
37 Mission Hills (5-6) 67.29 69.21 33
38 Olympian (9-3) 65.05 62.24 45
39 University City (6-4) 63.63 62.73 44
39 (tie) San Diego (9-3) 63.63 58.03 48
41 Bonita Vista (5-8) 63.45 63.08 43
42 Rancho Buena Vista (3-3) 62.79 65.42 37
43 Sage Creek (3-7) 62.59 63.55 42
44 Foothills Christian (4-7) 62.29 65.25 38
44 (tie) Army-Navy (7-4) 62.29 63.82 40
46 Serra (1-5) 62.11 69.81 31
47 Mira Mesa (6-4) 61.86 59.17 47
48 Monte Vista (3-11) 60.47 67.94 35

 

Developed by Michael Traub (Aliso Niguel ’13, MIT ’17), the algorithm processes the final scores of completed games to calculate a rating based on each team’s goal differential in competitive games.

The objective is to determine what each game outcome teaches us about a given team, then reflect that in a numerical rating. An expected blowout that actually ends as a blowout is non-competitive and teaches us nothing. An expected blowout that winds up being close, or competitive, teaches us something.

For these reasons, the algorithm relies heavily on the concept of competitive games, defined as those in which the score was close or was expected to be close based on each team’s relative power rating. These games reveal a team’s true quality and have much more influence over the ratings than non-competitive games.

To hedge against teams receiving credit for running up the score in non-competitive games, the algorithm also evaluates how much a particular game should influence the ratings by calculating a “competitive factor” (CF).  Games with a high CF influence the power ratings more than a game with a low CF.

Have questions or comments about the new feature? Contact us at news@maxlaxla.com.