From 2007-2009, Ryan Rowland-Smith was an effective pitcher for the Seattle Mariners. The Australian-born southpaw appeared in 88 games and logged an ERA below 4.00 for three years running. His move from the bullpen to the starting rotation had been seamless. His future looked bright.

Then the roof caved in. In 2010, Rowland-Smith went 1-10 with a 6.75 ERA. He allowed 141 hits in 109 innings and walked nearly as many batters as he struck out. He hasn’t pitched in the big leagues since.

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Dennis Martinez is among the least-appreciated pitchers in recent generations. Fans in Montreal certainly remember “El Presidente,” but the Nicaraguan-born right-hander is far from a household name in most baseball circles. He should be.

Martinez won 245 games from 1976 to 1998, despite never winning more than 16 in any one season. He pitched 3,999.2 innings and logged a 3.70 ERA. In 1991, at the age of 37, he threw a perfect game. That same season he led the National League in ERA, complete games and shutouts.

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This past weekend the New York Times ran an obituary for a 69-year-old former football player named George Sauer. Mr. Sauer was an accomplished wide receiver who made four Pro Bowls. In 1967, he led the American Football League in catches. In 1969, he played a prominent role as Joe Namath led the New York Jets to an improbable win in Super Bowl III.

He also hated his sport. Sauer considered professional football “a grotesque business” that “both glorifies and destroys bodies.” Lacking the passion to continue, he retired at age 27.

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Glen Perkins knows his FIP. He also knows his HR/9, Z-Swing% and O-Swing%. More importantly, he understands what they mean. As the Minnesota Twins left-hander says, “I like baseball and I like math.”

Perkins is more than a stat geek. The 30-year-old converted starter is one of the better closers in the American League (despite his skepticism of modern-day closer usage). Six weeks into the current campaign he’s well on his way to topping last year’s save total, despite a markedly higher ERA — a number he considers less important than his FIP.

Perkins talked about his 2013 numbers prior to last night’s game at Fenway Park.

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Scott Diamond throws strikes. The Minnesota Twins left-hander walked just 1.61 batters per nine innings last year, lowest in the American League among qualified pitchers. After beginning the current campaign on the disabled list, his rate is a puny 1.2 in four starts.

The 26-year-old control artist also doesn’t log many strikeouts. In 173 innings last year, his K-rate was 4.68. That ranked him second from the bottom in the A.L., ahead of only Henderson Alvarez. So far this season he’s a tick better at 5.2.

Can Diamond match last year’s success — a 3.54 ERA and team-best 12 wins — with his pitch-to-contact ways? Some are skeptical, but he didn’t exactly rely on smoke and mirrors in his rookie season. He had a respectable 3.94 FIP and his .292 BABIP wasn‘t far from league average. His 53.4 ground-ball rate should be sustainable despite the absence of a two-seam fastball in his repertoire.

Diamond takes the mound tonight against the Red Sox at Fenway Park.

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Scott Diamond on his approach: “I get guys out by throwing strikes. I make them feel uncomfortable by getting ahead and playing the numbers game — the odds of them getting themselves out. We had a pitcher last year, P.J. Walters, who worked a lot with Dave Duncan when he was with the Cardinals. I don’t know if this number is exact, but he said when hitters swing at the first pitch they hit something like .158. If I get ahead early, I have them in a hole.

“My mentality for getting ahead is simply throwing a strike down in the zone. A lot of that is based on scouting guys beforehand. I’m looking at my approach against theirs and seeing where I want to locate. But I’m also keeping it simple in terms of halves of the plate. I’m not locating to a particular sector. A lot of scouting reports say my ball doesn’t move a lot, but based on the reactions I get from hitters, I throw to general sectors and let my ball do what it needs to do.”

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Seth Smith continues to mature as a hitter. Despite a recent cool stretch, the 30-year-old Oakland A’s outfielder is off to a .283/.366/.455 start. A career year may be in the offing, as well as a shedding of the platoon-player label.

A left-handed hitter, Smith came into the campaign with a career .614 OPS in limited at bats against same-handed slants. This season he is getting more opportunities versus southpaws, and the results have been positive — he’s hitting .345./.387/.586. The sample size is too small to be meaningful, but the same can’t be said of his efforts to fine-tune.

Smith talked about the evolution of his hitting approach — against righties and lefties alike — when the A’s visited Fenway Park in late April.

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Seth Smith: “When you get to the big leagues, you’re taking that next step from just kind of swinging and trying to hit home runs to working counts. The longer you’re around, the more you pay attention to what the pitchers are trying to do. Strengths and weaknesses become more important. Over time, you learn how to be a smarter hitter.

“I don’t think you ever have it completely figured out, but I’ve made a steady progression. I have a good idea of what I’m trying to do up there. You need to be right physically, but being right mentally is equally important.

“An adjustment I’ve made is not worrying about getting deep into counts, nor worrying about putting the first strike in play. It’s about waiting for the strike you’re looking for. That comes with at bats and knowing what the pitcher is going to do late in the count. The more comfortable you are — regardless of the count — the better chance you’re going to have of success.

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Like most in his profession, Jim Summers goes largely unnoticed. That doesn’t mean he and his brethren aren’t invaluable to the teams that employ them. When it comes to day-to-day preparation, they are the rock stars of baseball’s video age.

Summers is the video coordinator for the Houston Astros. If a player or coach needs a frame-by-frame breakdown of a pitching delivery or a swing, he’s the go-to guy. Need to know how much a slider is breaking or which pitch an opposing slugger is hammering? He has the answer.

Summers is — in his own words — “a traveling video library.”

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Summers on the responsibilities of a video coordinator: “What I do is track every pitch thrown by us and against us. I track the pitch type, pitch speed, pitch location, where the ball was hit and how hard it was hit. Everything is categorized, marked and data-based. We track between 45,000 and 60,000 pitches each year. I then help the advance scouts by loading the games from the rest of the league. Basically, I’m a traveling video library.

“We get our video from TVTI. The data comes from Inside Edge, which sends us their comma-separated vector files, or CSV files. Those are integrated into a program called BATS, which is made by Sydex Sports and owned by Mike Phillips. I think 28 of the 30 teams use it.

“Here, with the Houston Astros, we have our own group of people doing statistics. I believe we will eventually do all of our own statistical inputs and outputs. We have one of the best decision science departments around. Sig Mejdal and the guys can really break things down, and because it’s a science it’s not subject to human prejudice.”

On how the data is used:
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When Lucas Harrell takes the mound this weekend against the Tigers, batters can expect to see a lot of two-seam fastballs. The Houston Astros right-hander has thrown his signature pitch 61.8 percent of the time this season. In his most recent start — a shut-down effort against the Yankees — 75 of his 105 pitches were two-seamers averaging 92.4 mph.

Harrell has been specializing in shut-down efforts. In five of his six starts he has allowed two or fewer runs. The 27-year-old doesn’t get much national attention, but outside of a brutal outing against the A’s in early April, he has pitched like an ace. It shouldn’t come as a complete surprise. Last year — his first full season in the big leagues — he had a 3.76 ERA in 193 innings.

Harrell lives and dies with his sinker, but he has solid command of four other pitches. He is also throwing a four-seam fastball 9.3 percent of the time, a cutter (13.9%), changeup (8.5%) and curveball (6.5%).

Harrell talked about his repertoire — including his heavy sinker — last weekend at Fenway Park. Also weighing in on his game were catcher Jason Castro, manager Bo Porter, pitching coach Doug Brocail, and Red Sox pitching coach Juan Nieves.

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Harrell on his two-seamer: “I throw a lot of sinkers. That’s my main pitch and my other stuff I basically just work in. It’s been my go-to pitch ever since high school. I’ve always had movement on it and I can also throw hard. The combination of those two together usually produces ground balls. I’m a ground ball guy and don’t strike a lot of people out.

“I get a little arm-side tail sometimes, but on good days I get more downward action. That’s what’s going to get me the ground balls. When I get side to side, I leave it up and it gets hit a little more.

“If you’re throwing your sinker at 88-90, or you’re throwing 90-93, that’s a big difference. The harder it is, the harder it is to hit. It rides a little bit more on the hands, which gives you a little more advantage. Even so, the more I’m out there, the sharper I am and the more action I have on the ball.”

On his two-seam grip: “I rotate the ball slightly in my hand and can really feel it come off my middle finger. Read the rest of this entry »

The sample size is small — just 24 plate appearances — but the numbers still jump off the page. Four weeks into the season, Mike Carp is hitting a stratospheric.455/.500/.864. Seven of his 10 hits have gone for extra bases.

The 26-year-old outfielder will obviously come back to earth, but he still might be one of the best under-the-radar acquisitions of the off-season. The Red Sox acquired him from the Mariners in February for a PTBNL.

Carp was an enigma in Seattle. In parts of four seasons, he hit .255/.327/.413 and occasionally drove baseballs long distances. What he didn’t do is prove that he could stay healthy and provide consistent production. Jettisoned to Boston, he is intent on proving he is capable of both. Only time will tell, but Carp is swinging a hot bat.

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Carp on his hot start: “Being healthy is a big part of it. I missed a lot of time last year with the shoulder injury, so it’s about finding my rhythm. The more reps I get, the better I see the ball and better rhythm I have.

“I wasn’t getting at bats the first couple weeks of the season, but I’ve gotten a few lately and that’s helped me lock in a little more. I feel great at the plate. I’m just trying to stay short and use the whole field. I’m going up there with a good plan and sticking to it. I kind of got away from it [Saturday] and had a rough night, but I rebounded [Sunday] and got back to what’s working for me.

“I’m itching for as many at bats as I can possibly get, but I also understand the concept of a team. We have a very deep bench and it’s nice to be able to keep guys fresh.”

On hitting at Fenway Park: Read the rest of this entry »

When Jason Hammel takes the mound tonight against the A’s, he’ll be visualizing the shape of his pitches. He’ll also be throwing a lot of two-seamers and sliders. Last season the Baltimore Orioles right-hander threw his signature offerings 34.5% and 22.2% of the time. This year – according to PITCHf/x — those numbers have merged somewhat to 27.8% and 23.7%, respectively.

Originally with Tampa Bay, Hammel spent three years with Colorado before being traded to Baltimore — in exchange for Jeremy Guthrie — in 2012. Last year he went 8-6 with a 3.43 ERA, and 8.6 strikeouts-per-nine-innings, in 20 starts. Hammel talked about his development as a pitcher when the Orioles visited Fenway Park earlier this month.

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David Laurila: How have you evolved as a pitcher?

Jason Hammel: First of all, I throw harder. I’ve basically grown into my body. I probably have a sounder delivery. There’s also the idea of just knowing how to pitch.

Out of high school, I was 89 [mph], then I went to college and got up around 91-92. As I started getting a little deeper into the minors, my velocity began to show up more. I got into the mid-90s.Velocity opens up more room for error. If you make a bad pitch you can maybe get away with it because you’re throwing harder. I’ve always been a max-effort guy.

DL: What is the history behind your two-seamer?

JH: I experimented with it in Denver, in my first year out there [2009], but it wasn’t successful for me. I wasn’t getting any movement, so… well, I was, but it was too inconsistent. I wasn’t about to keep working on it in the middle of the season. I got traded to the Rockies right after spring training, from the Rays, and started working with Bob Apodaca, their pitching coach. I worked on it for maybe the first two months of the season.

DL: When did it become a quality pitch for you? Read the rest of this entry »