Colorado’s switch to a four-man rotation with starters on 75-pitch limits hasn’t exactly worked wonders, but the Rockies are sticking with that setup for the remainder of this season and plan to continue using it next year as well.
Troy Renck of the Denver Post reports that they’ll make a slight change, essentially pairing each starter with a “piggyback” reliever who’ll be expected to throw around 50 pitches. And in theory 75 pitches from the starter and 50 pitches from the reliever would get the Rockies deep enough into games to then rely on more traditional bullpen usage.
Coors Field and pitching at altitude has made it extremely tough for the Rockies to get consistently good or even decent starting pitching for basically their entire existence, so experimenting makes some sense and pairing pitchers is an interesting concept. Of course, it’s worth noting that the switch to a four-man rotation hasn’t really done much good so far.
Before the switch Rockies starters had a 6.28 ERA and since the switch Rockies starters have a 5.61 ERA. So they’ve been better but still really, really bad and the extra stress placed on relievers has caused the bullpen ERA to rise from 4.00 before the switch to 4.52 since. Basically all the improvement with the rotation has been canceled out by the bullpen getting worse (and throwing more innings).
Overall their team ERA was 5.38 before the switch and is 5.04 after the switch.
In a wave of prospect advancement news on Sunday, the Rockies have joined the fray. The Astros are calling up Alex Bregman. The Diamondbacks are calling up Braden Shipley. And the Rockies will call up outfield prospect David Dahl on Monday, Nick Groke of The Denver Post reports. The Rockies are expected to designate outfielder Brandon Barnes for assignment to create roster space.
Dahl, 22, was selected by the Rockies in the first round — 10th overall — in the 2012 draft. He started the season at Double-A, batting .278/.367/.500 with 13 home runs, 45 RBI, 53 runs scored, and 16 stolen bases in 322 plate appearances. He earned a promotion to Triple-A Albuquerque earlier this month. In 16 games there, Dahl has hit an outstanding .484/.529/.887 with five homers, 16 RBI, and 17 runs scored in 68 plate appearances.
Dahl is considered the Rockies’ second-best prospect and #40 overall in baseball according to MLB Pipeline. He got some camera time during the 2016 Futures Game two weeks ago, going 0-for-2.
David Robertson got the win in both White Sox victories today, a double-header versus the Tigers. In the first game, he got the final out of the eighth inning and pitched a scoreless ninth before the White Sox walked off on an Adam Eaton RBI single.
It was the second game that made things interesting. Robertson took the mound at the start of the ninth inning staked to a 4-1 lead. He’d fork up a leadoff home run to Nick Castellanos. Then, after getting two outs, served up another solo shot to Tyler Collins followed by a game-tying Jarrod Saltalamacchia dinger. Robertson would get out of the inning without any further damage.
In the bottom of the ninth, Melky Cabrera sent the White Sox home winners again, drilling a walk-off RBI single. That gave Robertson the win, his second of the afternoon. As Baseball Tonight notes on Twitter, Robertson is the first player in the last 100 years to give up three home runs in an inning or fewer and still wind up with the victory.
Robertson has had a rough go of it since the All-Star break. He yielded four runs in his first appearance back on July 18. On the season, he’s saved 23 games in 27 appearances with a 4.46 ERA and a 50/21 K/BB ratio in 40 2/3 innings.