Apr 05
We have had some discussion here recently about projection systems. A recent look at several systems suggests the Rays will win about 90 games this season and finish third in the AL East.
This, and a recent article in the Orange County Register got us wondering…What is the full potential for the 2009 Tampa Bay Rays?
In the PECOTA projections over at Baseball Prospectus they actually provide a range of projections for each player.The highest (best) projection for each player is their “90th percentile.” We decided to take a look at what the 2009 Rays would look like if each player played to the 90th percentile.
Notes on the projections are found after the tables…
Notes on the 90° PECOTA projections
- We used the opening day roster, with Jeff Niemann as the fifth starter and Lance Cormier in the bullpen. We also used BJ Upton in place of Matt Joyce.
- The offense is projected to score 963 runs based on 6,324 plate appearances. The Rays had 6,312 plate appearances in 2008, so we did not scale this number.
- The pitching staff is projected to give up 443 earned runs. Based on how many unearned runs the Rays allowed last year, that number translates to 481 total runs. But this number is based on 1,350.1 innings. Last year the Rays pitched 1,457.2 innings. So the total number of runs allowed was scaled up to 519.
- Based on Pythagorean win expectation, scoring 963 runs and allowing 519 runs would translate to a .756 win percentage.
- Based on a .756 win percentage, the Rays would finish the regular season at 122-40 (and some thought the C.H.A.L.K. projections were optimistic at 113 wins)
- What stands out to us, other than every player having a very good year, is that none of the numbers for individual players seem outlandish to us. We can look at each stat line and envision a season in which that player reaches those numbers. In fact, in a couple of cases, the numbers seem low (BJ Upton, Carl Crawford). This is because the projection systems don’t account for stats from previous seasons that are affected by injuries.
- Last year the Rays finished 97-65, which was 5 games better than their Pythagorean win percentage. Some say this is evidence that the Rays were lucky in 2008. We think it does not account for a team with a great bullpen that wins more close games than an average team. In 2009, the Rays 29-18 record in 1-run games was the best in baseball.
Nov 03
Back in Spring Training we took a look at several different projection systems and how the 2008 Tampa Bay Rays could be expected to perform. Each of the systems ( Now let’s take a look back and see how they did.
Based on the Rays’ runs scored and runs allowed, their Pythagorean record was 92-70, showing that the Rays played 5 games better than would be predicted based on their run differential (by comparison, the Red Sox record of 95-67 matched their Pythagorean record).
CHONE proved to be the closest to predicting the Rays breakout, but still came 10 wins short of the actual number, giving the Rays a 30.4% chance of making the playoffs. At the other end of the spectrum, ZiPS, Diamond Mind and The Hardball Times all projected a losing record for the Rays. ZiPS and Diamond Mind gave the Rays less than 5% chance of making the playoffs.
While all of the projections predicted the Rays would score more runs in 2008, the Rays actually scored 8 fewer runs. On the other side of the ball, the Rays were projected to allow over 140 fewer runs this season. The actual number was 273 fewer runs given up by the pitching staff.
The Mathematical Definition Of “The Rays Are Getting Warmer” [Rays Index]
May 16
Over/Unders:
88 wins for the Rays, as predicted by PECOTA in the preseason:
The Rays as of today, sit at 24-17. In order to win 88 games, they need to only go 64-57. In other words, they have played 7-over .500 in the first quarter of the season and need only play 7-over over the last 121 games. Also keep in mind that the Rays have already played 10 of their 18 games against the Yankees but have only played 6 of their 18 games versus the Sox. That leaves 20 games against those two monsters. If they only win 5 of those games, they will have to go 59-42 against the rest of the league. Not impossible, but not easy either. So the key is splitting those games against the two-headed AL East monster. The Yankees games don’t scare us. Those 12 against the Sox do. UNDER
.340 batting average for Dioner Navarro:
Entering the weekend series Navi is hitting .387. His line drive percentage sits at a strong 22.4% but his EqA is only .311 and he has almost twice as many strikeouts as walks (9 to 5). What Navi does have going for him is he only has 75 at bats so far, which means he is rested (although he was stronger in the second half of ’07) and individual hits will add more to his average. And, he has a 47 point cushion right now. But Navi’s biggest problem is his speed. He just isn’t going to benefit from the occasional infield single. He will hit .300 and he might even hit .320. But he will not hit .340. UNDER
17 wins for Andy Sonnanstine:
We are 1/4 the way through the season and Duke has 5 wins and is on pace to win 20 and he is on the hill tonight. So far this season, in 8 starts, Sonny has allowed 4 runs or more 5 times. He has W’s in 2 of those starts. His Expected wins and losses are 2.4 and 2.9, meaning Sonny has been very lucky so far. A more likely win total for Duke is 12-13. UNDER
25 home runs for Evan Longoria:
So far Longoria has 4 long balls in 31 games and is hitting a home run about once every 30 at bats. If he plays everyday and gets another 520 plate appearances over the course of the regular season, that would be another 17 home runs, which would give him 21. Dirtbag has looked lost at times and has not hit lefties at all. We have to assume that he will start to get more comfortable as the season progresses and that rate will pick up. Even if it is just a little, he should be good for 27-28 home runs. OVER
2 errors for Akinori Iwamura at second base:
This has been an amazing run. Aki has ZERO errors in the first 40 games he has played. And it is not for an absence of error opportunities. We have seen Aki range up the middle and make tough throws after spinning back towards first. Those are easy to throw away. He has been a part of 35 double-plays so far and is yet to make an errant toss to Bartlett or make a wild throw throw to first base. It has been said better by others, but outside of catcher, second base is the hardest position to learn, because so much of it is “feel” because the player often has his back to the runner or to the base he is throwing to. Last year Placido Palanco won the gold glove and did not commit a single error. So it is possible. But we have to think that eventually Aki is going to boot a couple, probably more than a couple. OVER
1.5 Wins for the Rays in this series against the Cardinals:
The Cardinals are 24-19 and 15-9 at home. Also, the Rays will play this series without their top 2 starters and without their DH (Cliff Floyd). We feel that a little luster of the season will come off this weekend. UNDER
Mar 26
Using six different projection systems, one website projects the Rays to finish 82-80.
In 2006 and 2007 we called this “The Mathematical Definition of ‘No Chance In Hell’”. In 2008? It is now more like the “The Mathematical Definition of “Getting Warmer”.
The good folks over at Replacement Level Yankees Weblog have finished their annual mathematical projections of the 2008 season. In short they run 1000 simulations for the 2008 season using player projections from six different sources including
For more details on the individual projection systems and their level of historical accuracy, go HERE.
Now let’s take a look at how the Rays are projected for the 2008 season…
A few notes on the projections…
- We previously mentioned that single iterations of the 2008 season using PECOTA and CHONE projection systems gave the Rays 88 and 89 wins respectively. At the time we tried to temper the excitement because they were only a single piece of data. We now see that both systems have slightly lower numbers when projected over 1,000 seasons.
- These projections are based on a healthy Scott Kazmir.
- Even the most conservative projection for the pitching staff (Diamond Mind) has the Rays allowing 100 fewer runs in 2008 while PECOTA has them bettering their ERA by over a run a game.
- The average projections look a little like what I think most Rays fans would expect. A .500 record and about a 1 in 6 chance of making the playoffs if things break the right way.
We now have a mathemtical definition for “No Chance in Hell” [Rays Index]
2007 Mathematical Definition Of ‘No Chance In Hell’ [Rays Index]
Feb 27
Tampa Bay Rays (33 days until Opening Day)
The injury bug is striking the Rays camp early this year. After earlier scares from Scott Kazmir and David Price, we now get word that Reid Brignac will miss a week with a broken toe.
In other injury news from yesterday’s intrasquad game, Reid Brignac suffered a fractured fifth toe on his right foot when he was hit by a pitch [thrown by Chris Mason]. He is expected to be out for 4-7 days
*mumbling to self* One…Two…Three…Four…Five? Five!?
That’s the friggin’ pinky toe! Seven days for a pinky toe?! In our day we just taped that piggy to the 4th piggy and got our ass back on the field. We wouldn’t even tell the coach.
In brighter news, Kazmir’s MRI results came back and while there is a minor tear, it is officially listed as a “strained elbow”. He is expected to miss two weeks. Andrew Friedman stated that Kid K could miss one or two starts in the regular season. Kazmir has other plans.
“We still think that what we have now is something where it’s possible to get out there and be ready for Opening Day,” he said.
Nice.
Kazmir out ‘weeks, not months’ [Rays Report]
Kazmir: I’ll be ready by opening day [Rays Report]
DEVIL RAYS WEBTOPIA…
- Rocco Baldelli was the DH in this morning’s intrasquad game, going 0-2. [The Heater]
- We previously mentioned that according to Anaheim All The Way’s CHONE projections, the Rays are projected to win 89 games. Nate Silver of Baseball Prospectus, wrote a guest-column today for SportsIllustrated.com explaining why the Rays are expected to win 22 more games in 2008 based on their PECOTA projections. The biggest improvement is slated to come from the defense. [SI.com]
It’s in the field…that the Rays will make their biggest gains. According to BP’s Fielding Runs above Average (FRAA), the Rays gave up 72 more runs than an average defense last season. Of that total, 56 resulted from poor middle-infield play as the Rays rotated overmatched utilitymen Brendan Harris and Josh Wilson at shortstop and saw Upton commit 12 errors in just 48 games at second before moving him to centerfield. But the acquisition of slick-fielding shortstop Jason Bartlett in the Young trade and the move of sure-handed Aki Iwamura from third to second (to make room for Longoria) has stabilized the infield. As a result the Rays’ defense projects to be 10 runs above average this year, an 82-run improvement, which will allow the improved rotation to work through its innings more efficiently.
- Jon Heyman today said that one “Rays person” put the chances at signing Barry Bonds at 100:1. They went on to say that it would most likely only happen if one of the Rays current players were injured and even then, there would have to be other extenuating circumstances. A friend of Bonds said he would most likely not want to sign with the Rays as his main goal is to win a World Series. [SI.com]
- The Rays have the top pick in the June draft. The odds-on favorite to be the first pick, Pedro Alvarez broke a bone in his hand and will be out of action for up to six weeks. [VU Commodores]
- Rays Anatomy has posted their Rays preview for MVN’s new Roster magazine. [Rays Anatomy]
Apr 01
The good folks over at Replacement Level Yankees Weblog have finished their annual mathematical projections of the 2007 season. In short they run 1000 simulations for the 2007 season using player projections from four different sources including
Last season only the first three projections were used and when combined, the Rays were projected to win 71 games and made the playoffs 17 out 3000 seasons or slightly more than 0.5% of the time. The Rays ended up losing 148 games and made the playoffs 0% of the time.
Let’s take a look at the Rays 2007 projections…
If the four datasets are averaged together, the Rays are projected to finish approximately 71-91, with 11 division titles and 34 wild card appearances in 4000 seasons (1.1%). The Rays are also projected to score 799 runs. As a team the Rays scored 689 runs in 2006, lowest in the majors. The Rays are projected to give up 891 runs. In 2006, the Rays pitchers surrendered 856 runs. Only two teams allowed more.
While it seems realistic that the Rays will score a lot more runs this season, we are not sure why three of the projections have the pitching surrendering more runs in 2007. The staff could not have pitched worse in 2006, yet somehow the projections think they will in 2007. Oddsmakers have the Rays over/under win total at 67. 71 wins is more in line with what we think is realistic for this team in its current form.
Mar 02
Yesterday we presented the Baseball Prospectus PECOTA projections for the Rays position players. Today we take a look at the weighted mean PECOTA projections for the pitchers.
Please see yesterday’s post for an explanation of PECOTA.
| Player |
W |
L |
ERA |
IP |
H |
BB |
SO |
| Scott Kazmir |
10 |
7 |
4.02 |
151.0 |
140 |
62 |
150 |
| Jae Seo |
6 |
6 |
5.31 |
113.1 |
134 |
37 |
65 |
| Casey Fossum |
6 |
7 |
5.01 |
112.1 |
123 |
46 |
77 |
| James Shields |
10 |
9 |
4.49 |
168.2 |
183 |
47 |
127 |
| J. P. Howell |
8 |
8 |
4.62 |
131.0 |
139 |
54 |
100 |
| Edwin Jackson |
4 |
7 |
5.83 |
94.1 |
105 |
52 |
65 |
| Jae Kuk Ryu |
7 |
8 |
4.90 |
123.1 |
133 |
47 |
85 |
| Seth McClung |
3 |
4 |
4.54 |
52.0 |
48 |
27 |
41 |
| Jason Hammel |
8 |
9 |
4.91 |
140.2 |
150 |
53 |
100 |
| Travis Harper |
2 |
2 |
4.66 |
47.0 |
53 |
14 |
32 |
| Rudy Lugo |
3 |
2 |
4.34 |
59.0 |
58 |
27 |
39 |
| Dan Miceli |
2 |
2 |
4.49 |
37.2 |
38 |
18 |
28 |
| Jeff Niemann |
7 |
8 |
5.02 |
126.1 |
129 |
62 |
100 |
| Chad Orvella |
3 |
2 |
4.05 |
50.1 |
48 |
20 |
43 |
| Juan Salas |
3 |
3 |
5.25 |
56 |
58 |
31 |
47 |
A few thoughts on these numbers…
- Right off the bat we see Scott Kazmir’s numbers and we have to raise our eyebrow. Remember, these numbers are a weighted mean. In other words, PECOTA is saying that there is about a 50% chance of Kid K having a better season than these numbers and about a 50% chance of having a worse season. Kid K’s success in 2006 at such a young age is a rare achievement. A lot of players that have success and throw a lot of innings at a young age have broken down in the following season. So these numbers are probably more a reflection of risk of injury than of talent.
- Now compare Kazmir’s projection to the Rays other young starter, James Shields. Shields is actually projected to pitch more innings in 2007. That shows that there is more injury risk factored into Kazmir’s numbers. Why? For one, Shields is two years older (25) than Kid K (23), and injuries are less common in older pitchers. The projections are also likely to consider that Kazmir is a power pitcher and throws more pitches than Shields making Kaz more at risk for injury. Again, this doesn’t necessarily say Kaz is going to break down this season. However, injuries and off-seasons are common in players that Kazmir compares favorably to from past years. If he make 28-30 starts this season, his numbers will be better than the weighted mean projection.
- Jeff Niemann probably does not have enough of a resume to make any realistic projections.
- Some of these projections are hard to read because PECOTA can’t predict who will be in the rotation and hence a lot of these projections include starter innings and reliever innings. For example, the projection for Jae-Kuk Ryu includes 39 appearances and 17 starts. PECOTA is not predicting that that Ryu will spend half the year in the rotation. Think of it as a simulation and the weighted mean is an average of many simulations. If you simulated the 2007 season 1000 times, some times Ryu is going to be a starter and some he is going to be in the pen. The weighted mean is averaging together both scenarios.
- The bullpen? Awful. Not a single pitcher with a sub-4.00 ERA projection. That will mean a lot of blown leads…again. What are the symptoms for PTSD?
Mar 01
Those lost souls that actually follow the Rays closely know that there is talent on this team and several players have a chance to break out this season. We here at RI try to stay level-headed and not get too optimistic with expectations for individual players. We have an idea of what each player is capable of, and hope that those players at the very least make progress towards those levels. We know that a few players will achieve to those levels, a few players will maintain past levels and probably a few players will regress, whether it be due to injury, past overachievments, steroid testing or baby mamma issues.
That being said we would still like to have a realistic idea of what can be expected from our Rays this season. Enter Baseball Prospectus and their PECOTA playing cards. In short, Nate Silver of BP has developed an algorithm using Sabermetrics to predict future performance of individual players. We don’t pretend to know the math behind PECOTA, but our best understanding is that it uses past performances, age and predicted playing time and compares those numbers to similar players from past years. In doing so, they develop a probability distribution for each player, with predictive stat lines from the 10th percentile to the 90th.
Below we have presented weighted means for players that we expect to receive regular playing time with the 2007 Rays. The weighted mean “incorporates all of the player’s potential outcomes into a single average, weighted based on projected playing time.” For example, Carl Crawford has a 10th percentile stat line that looks like .268-8-41-22. In other words, he has a 90% chance of having a season at least as good as that stat line. His 90th percentile line is .343-20-78-54, but he only has a 10% chance of having a season that good or better. The percentile does not apply to the individual stats, but to the entire line. As Rays fans we realize that CC has a better than 10% chance of stealing 54 bases, but a .343 batting average is probably not in his repertoire yet. We have only included the most common stats. You can find more stats in addition to more players cards at Baseball Prospectus…Tomorrow we will present the Rays pitching staff.
| Player |
PA |
AVG |
HR |
RBI |
SB |
OBP |
SLG |
| Carl Crawford |
633 |
.309 |
16 |
66 |
43 |
.351 |
.476 |
| Rocco Baldelli |
520 |
.299 |
20 |
70 |
13 |
.342 |
.501 |
| Akinori Iwamura |
560 |
.275 |
17 |
64 |
7 |
.353 |
.449 |
| Delmon Young |
588 |
.297 |
18 |
75 |
22 |
.334 |
.473 |
| B. J. Upton |
604 |
.264 |
13 |
54 |
40 |
.347 |
.412 |
| Jorge Cantu |
548 |
.267 |
21 |
79 |
1 |
.308 |
.452 |
| Elijah Dukes |
532 |
.283 |
16 |
62 |
13 |
.349 |
.454 |
| Jonny Gomes |
530 |
.238 |
27 |
75 |
6 |
.343 |
.480 |
| Brendan Harris |
500 |
.259 |
11 |
56 |
3 |
.314 |
.390 |
| Dioner Navarro |
349 |
.269 |
8 |
39 |
3 |
.344 |
.410 |
| Greg Norton |
301 |
.260 |
11 |
42 |
1 |
.339 |
.442 |
| Ty Wigginton |
460 |
.269 |
19 |
65 |
4 |
.336 |
.467 |
| Ben Zobrist |
526 |
.279 |
5 |
46 |
9 |
.348 |
.393 |
A few thoughts on these numbers…
- In 2006, the Rays had the worst team OBP in baseball (.314). It looks like PECOTA predicts the team to take a jump forward in 2007, with 10 players in the .330-.360 range. The premise being that players become more patient and adept at reaching base as they get older. That would go along way to improving this team dramatically in 2007.
- Carl Crawford showed at times last year that he has a power game and we will probably see more home runs this season. Also, if CC bats third as predicted, look for more RBI.
- Rocco Baldelli’s numbers are about what we are expecting, although we think he will probably be closer to 20-25 stolen bases.
- B. J. Upton’s numbers look to be inflated a bit as he probably will not see that many plate appearances. Still, it is nice to see that despite his recent struggles, PECOTA still predicts him to emerge as a solid offensive player. He is young, and talented and there is still plenty of time to develop.
- Jorge Cantu and Jonny Gomes…you would think they were a Hollywood couple as often as these two have been mentioned together this Spring. We might need a Brangelina-type nickname. We kinda like Jornny Gomtu. No? Anyway, Cantu’s and Gomes’ numbers are probably the most difficult to predict because half there careers to this point have been affected by injury. So we suggest taking their numbers lightly.
- Delmon Young and Elijah Dukes (if he gets enough ABs) look to be exactly what most people would realistically expect.
- If Ben Zobrist can give the Rays a consistent glove and .350 OBP, Joe Maddon will be very happy.
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