Final WNBA Advanced Stats

Posted on Tuesday, September 15th, 2009 at 2:58 pm by Kevin Pelton

For a statistical analyst, there’s nothing better than the end of the season. Finally, the numbers will stop fluctuating and be fixed for all eternity. This year, the fact that most of the playoffs were set entering the season’s final weekend created some oddities in terms of the final numbers. Most meaningful was Phoenix missing out on the best Offensive Rating in WNBA history while playing two games after clinching the top spot in the Western Conference. Still, the league finished with an average Offensive Rating of 100.4, cracking triple-digits for the first time in the most offensive (in a good way) season the league has ever seen.

Plenty of preformatted tables after the jump …

OFFENSIVE/DEFENSIVE RATINGS

Team           ORtg     Team           DRtg
-------------------     -------------------
Phoenix       109.6     Indiana        95.0
Minnesota     102.3     Seattle        96.7
Atlanta       101.2     Los Angeles    97.1
San Antonio   101.1     Atlanta        98.2
Chicago       100.5     Washington     98.6
AVERAGE       100.4     New York       99.0
Sacramento    100.2     Connecticut    99.3
Detroit        99.8     Detroit        99.4
Indiana        99.5     AVERAGE       100.4
Seattle        99.4     Sacramento    102.7
Connecticut    99.3     San Antonio   103.1
Los Angeles    97.4     Chicago       105.1
New York       97.4     Minnesota     105.2
Washington     96.6     Phoenix       105.4

While the Mercury dipped a little bit in the final week, look at the enormous gap between Phoenix and the rest of the league on offense. How good was the Mercury offense? Take Phoenix away and league average drops all the way to 99.6 points per 100 possessions. The Mercury might get a run for its money from Minnesota next year. Even without star Seimone Augustus for most of the campaign, the Lynx still finished in second. Lower down the list, L.A. finally moved out of the cellar in Offensive Rating.

On defense, the Storm held on to second place, the best finish in franchise history. Previously, the team was third in both 2002 and 2004. Last year, the Storm was fourth in the league, though compared to league average the 2008 D was slightly more effective.

EXPECTED WINS STANDINGS

Team         Exp. W     Team         Exp. W
-------------------     -------------------
Phoenix        21.1     Indiana        20.5
Seattle        19.2     Atlanta        19.1
Los Angeles    18.2     Detroit        17.3
San Antonio    15.5     Connecticut    16.9
Sacramento     14.4     New York       16.2
Minnesota      13.8     Washington     15.8
                        Chicago        13.0

Not a lot of change in terms of point differential. Detroit and Los Angeles both managed to get positive in the season’s final week. Washington makes the playoffs despite finishing sixth in differential in the East, where Connecticut took this year’s hard-luck award. Chicago was in the playoff hunt until the season’s final weekend, but still ended up with the league’s worst point differential, while Minnesota was surpassed by Sacramento when the Monarchs won the otherwise-meaningless head-to-head finale.

PACE

Team         Exp. W
-------------------
Phoenix        83.4
Atlanta        81.7
Minnesota      77.9
Washington     77.6
AVERAGE        76.9
Connecticut    76.6
Sacramento     76.3
Detroit        76.2
Indiana        75.9
Chicago        75.0
Los Angeles    74.7
New York       74.5
San Antonio    74.4
Seattle        72.9

With the season coming to an end, we’ll take a look at a few more statistics than usual. Guess what? Phoenix was the league’s fastest-paced team. I know, I know. Will surprises never cease? Atlanta, for a second straight season, was a close No. 2. New coaches pushed the pace in Minnesota and Washington. Also repeating as the league’s slowest-paced team was your Seattle Storm. The series between the Storm and L.A. – which played more half-court basketball than last year with a big lineup – won’t feature a ton of up-and-down basketball.

REBOUND PERCENTAGE

Team           Reb%     Team           Reb%
-------------------     -------------------
Los Angeles    .534     Phoenix        .465
Sacramento     .529     San Antonio    .466
Detroit        .525     New York       .475
Washington     .522     Chicago        .481
Atlanta        .519     Minnesota      .492

A quicker glance at team rebound percentage, with the top and bottom five in the league. Predictably, the Sparks were the league’s best rebounding team, although there were four other teams within shouting distance. There’s a huge gap between Atlanta and the Storm, who finished sixth at .501 thanks to outrebounding the league’s two worst teams on the glass in the regular season’s final two games.

WARP LEADERS

Player               Tm   Win%   WARP
-------------------------------------
Tamika Catchings    IND   .727    8.5
Nicky Anosike       MIN   .740    7.3
Diana Taurasi       PHO   .718    7.2
Becky Hammon        SAS   .674    6.9
Lauren Jackson      SEA   .732    6.7
Janel McCarville    NYL   .685    5.7
Cappie Pondexter    PHO   .613    5.4
Sancho Lyttle       ATL   .644    5.4
Nicole Powell       SAC   .606    5.0
Erika De Souza      ATL   .630    5.0
Lindsay Whalen      CON   .611    5.0
Candace Parker      LAS   .656    5.0
Sophia Young        SAS   .589    5.0

Congrats to Tamika Catchings, who used good health and strong play for the league’s second-best team to lead the league in WARP (no trophy is awarded for each season’s WARP leader, alas). Catchings previously led the league in 2002, 2005 and 2006, yet has no MVP awards to her credit. This should be Catchings’ best chance, given the Fever was atop the WNBA much of the season, but Katie Douglas has gotten most of the MVP attention and at best the two will split votes.

Granted, Indiana struggled when Douglas was absent late in the season, but remember that the same thing happened when Catchings was out and then at less than full strength early in a forgettable 2008 season. Both players play a key role in the Fever’s offense, but Catchings is much more key to the league’s best defense. That’s no knock on Douglas, a fine defender in her own right, but Catchings is as good a defender as has ever played in the WNBA, and her versatility has long made her a WARP favorite.

Becky Hammon edged past the sidelined Lauren Jackson to finish fourth in the league and post the best WARP of her career, narrowly surpassing last season. Hammon averaged 5.0 assists per game, which is pretty good for a score-first point guard.

Besides Douglas, the non-leader in the MVP discussion is Cappie Pondexter. On offense, Pondexter rates as well as anyone – she’s third in the league, behind Diana Taurasi and Hammon, in Offensive Rating – but she shows as a non-factor at the defensive end. As a result, it’s hard for her to compare to the value of two-way players like Catchings or even Taurasi.

I expanded the list past 10 players to show all five who more or less tied for ninth in the league with precisely five more wins than a replacement-level player. It’s an eclectic group which includes several players who moved up late in the year. Nicole Powell wrapped up her best season as a pro by scoring 27 points and grabbing 12 rebounds Sunday against Minnesota. Candace Parker obviously was not as effective after returning from giving birth as she was in her MVP campaign, but she was still awfully good on a per-minute basis. Her value is held back largely by the time she missed.

ROOKIE WARP

Player               Tm   Win%   WARP
-------------------------------------
Angel McCoughtry    ATL   .679    4.9
DeWanna Bonner      PHO   .617    3.7
Courtney Paris      SAC   .600    2.0
Shavonte Zellous    DET   .496    1.7
Kristi Toliver      CHI   .561    1.4
Megan Frazee        SAS   .516    0.8

In the end, statistically, it wasn’t close. DeWanna Bonner had a very good rookie season, but Angel McCoughtry was one of the league’s best players on a per-minute basis, averaging 23.7 points (third in the league) and 4.4 steals (first). I’m OK with splitting the awards and giving Bonner Sixth Woman since most of McCoughtry’s best games came as a starter. Elsewhere, we see some players who rated very well on a per-minute basis but struggled to get playing time. The shortcomings of Courtney Paris and Kristi Toliver are obvious, but their strengths valuable enough that they will demand more action next season.

PER LEADERS

Player               Tm    PER
------------------------------
Lauren Jackson      SEA   26.3
Diana Taurasi       PHO   25.1
Nicky Anosike       MIN   24.0
Becky Hammon        SAS   23.7
Lisa Leslie         LAS   23.4
Tamika Catchings    IND   23.1
Angel McCoughtry    ATL   22.8
Kara Braxton        DET   22.8
Rebekkah Brunson    SAC   22.3
Janel McCarville    NYL   22.2

To give a complementary view, here’s how John Hollinger’s PER had the league’s top players. Naturally, the big difference is that PER is an efficiency rating rather than a value one and does not consider playing time. That aside, PER still has Lisa Leslie much higher than she scored in the per-minute incarnation of WARP, player win percentage – where she scored 10th, essentially tied with teammate Parker.

TS% LEADERS

Player               Tm    TS%
------------------------------
Sylvia Fowles       CHI   .626
Diana Taurasi       PHO   .620
Crystal Langhorne   WAS   .606
Kristi Toliver      CHI   .606
Nicole Ohlde        PHO   .597

The most efficient scorer in the league was Chicago’s Sylvia Fowles, who shot a league-best 59.9 percent from the field and improved from the free throw line. Surprisingly, there are few perimeter shooting specialists on this list, with Toliver (who attempted nearly two-thirds of her shots behind the line and made them at a 44.4 percent clip) the only representative. The most impressive name on this list is Taurasi, because she had far and away the highest usage rate of any of these players. Speaking of which …

USAGE LEADERS

Player               Tm    Ps%
------------------------------
Becky Hammon        SAS   .276
Charde Houston      MIN   .270
Lisa Leslie         LAS   .266
Katie Douglas       IND   .264
Angel McCoughtry    ATL   .264

Because of the diversity of the Phoenix offense, neither Taurasi (.254) nor Pondexter (.260) used possessions quite at a league-leading rate. Both still got up plenty of shots in the fast-paced Mercury system. Hammon was called upon to shoulder a heavy load in the San Antonio offense; including assists would only increase her lead over everyone else. The surprising name here is Charde Houston, who was the go-to scorer for Minnesota after Augustus went down and was awfully efficient in that role – but came up with few assists.

REB% LEADERS

Player               Tm   Reb%
------------------------------
Kara Braxton        DET   .194
Courtney Paris      SAC   .189
Erika de Souza      ATL   .186
Rebekkah Brunson    SAC   .178
Candace Parker      LAS   .177

Kara Braxton played very well this season, ranking amongst the PER leaders, but her minutes remained limited. For Erika de Souza, this was a first chance to start regularly in the WNBA (she would have had that opportunity last season were it not for injuries), and she demonstrated that her effective play in limited bursts was no fluke. Parker was not as effective as a scorer this season, but one of the other areas she helped make up for it was by doing more on the glass than she did as a rookie.

TO RATE LEADERS

Player               Tm    TO%
------------------------------
Amber Holt          CON   .087
Sidney Spencer      NYL   .089
DeWanna Bonner      PHO   .090
Kelly Mazzante      PHO   .091
Lauren Jackson      SEA   .092

Mostly, a chance to appreciate LJ. Usually, the leaders in turnover rate are spot-up shooters like Sidney Spencer and Kelly Mazzante. Bonner did an excellent job of taking care of the basketball during her rookie season, but none of these players had nearly as important a role in their offense as Jackson. No wonder the Storm’s turnover rate has spiked since Jackson has been sidelined.

One Response to “Final WNBA Advanced Stats”

  1. KT#7 says:

    Hey, do you have the PERs for all rookies?