Romo fired 1.2 perfect innings during which he recorded three strikeouts in an extra-innings win over the Red Sox on Saturday.

EDGE Analysis

The veteran reliever authored his third consecutive scoreless relief effort and lowered his ERA and WHIP to a season-low 4.60 and 1.19, respectively. His current successful stretch comes in the wake of back-to-back outings in which Romo allowed an earned run apiece, but despite those hiccups, he's been one of manager Bob Melvin's most trusted bullpen options since a rocky April.

Romo secured his fifth hold in a win over the Angels on Monday, firing a scoreless third of an inning during which he allowed one hit and recorded a strikeout.

EDGE Analysis

Romo fired six of his seven pitches for strikes in yet another sharp performance, one that extended his scoreless-appearance streak to seven games and 5.1 innings -- a stretch in which he hasn't issued a walk. The veteran reliever's ERA is down to 5.66 after hitting 12.79 back on April 21, but he's allowed six hits in his last four appearances and his career-worst 1.55 WHIP remains cause for concern.

Romo has pitched to a 2.84 ERA and 1.03 WHIP while generating a 14:5 K:BB and three holds over the 12.2 innings covering his last 15 appearances.

EDGE Analysis

The veteran right-hander has lowered his season ERA well over six full runs from 12.79 to 6.16 during that stretch, which dates back to April 25. Additionally, three of the four earned runs he surrendered in the sample came in a May 23 outing against the Angels, underscoring how consistently effective he's been otherwise. The improvement was drastically needed after Romo, an offseason acquisition aimed at replacing the departed Joakim Soria, opened the season by allowing at least one earned run in five of his first seven trips to the mound.

Romo secured his third hold in a win over the Twins on Sunday, firing 1.1 scoreless innings during which he issued a walk and recorded two strikeouts.

EDGE Analysis

Romo now has generated six scoreless outings in his last seven trips to the mound, a stretch during which he's posted two holds, a 1.29 ERA, 0.71 WHIP and 11.6 K/9 across seven innings. The veteran reliever has been able to whittle his season ERA almost in half from 12.15 to 6.59 in the process, much more closely resembling the reliable late-inning asset he's proven to be the majority of his career.

Romo, who fired a perfect ninth inning in a loss to the Orioles on Saturday, now has four straight scoreless appearances.

EDGE Analysis

The modest but encouraging stretch is noteworthy, considering the veteran reliever has lowered his ERA over four full runs (12.79 to 8.38) during that span. Romo opened the season and his Athletics tenure by giving up nine earned runs across his first seven trips to the mound, and manager Bob Melvin's decision to afford him some confidence-building low-leverage opportunities recently seems to be paying dividends.

Romo, who fired a scoreless one-third of an inning in a loss to the Orioles on Sunday, had posted an 18.90 ERA over the 3.1 innings covering his previous four appearances.

EDGE Analysis

The veteran reliever's tenure in Oakland has been nothing short of disappointing thus far, with Romo managing only two scoreless appearances prior to recording the final out of the seventh inning Sunday. Romo has otherwise given up multiple earned runs on three occasions and a run apiece in two other appearances, leading to a 12.15 ERA and 2.25 WHIP across 6.2 innings. As those numbers imply, the 38-year-old is underperforming across the board, but particularly when it comes to missing bats -- Romo's middling 10.8 percent strikeout pales in comparison to the 26.3 percent figure he's averaged over the prior five seasons.

Romo fired a perfect eighth inning in a win over the Diamondbacks on Tuesday, recording one strikeout.

EDGE Analysis

Tasked with protecting a narrow 6-5 lead, Romo came through with a quick 11-pitch frame that served as a bridge to current closer Lou Trivino in the ninth. Romo is projected to remain in a setup role behind Trivino as Trevor Rosenthal undergoes an extended recovery from thoracic outlet syndrome surgery, and Tuesday's effort was especially encouraging in that it was the first time in four trips to the mound Romo didn't give up a run.

Romo, who allowed two earned runs on one hit over two-thirds of an inning in a win over the Astros on Saturday, now has a 9.82 ERA across his first 3.2 innings of the season.

EDGE Analysis

Romo has now given up at least one hit in each of his four appearances and at least one run in three straight outings while posting a 2:3 K:BB thus far. Manager Bob Melvin had recently intimated Lou Trivino was the top candidate for save chances while Trevor Rosenthal recovers from recent surgery for thoracic outlet syndrome, and Romo's early body of work only serves to validate the decision to keep the veteran away from the highest-leverage situations for the time being.

Romo doesn't appear to be a primary candidate for closing duties during the prolonged absence of Trevor Rosenthal (shoulder), Martin Gallegos of MLB.com reports.

EDGE Analysis

Instead, manager Bob Melvin mentioned Lou Trivino as a possible top option for ninth-inning duties in the wake of the news Rosenthal will miss multiple months after undergoing surgery. While Trivino has allowed one earned run over 5.2 innings across four appearances to start the season, Romo has given up a run in back-to-back outings and issued a walk in all three of his trips to the mound thus far. Although he apparently won't be the primary candidate for the job, Romo's 134 career saves and experience in high-leverage scenarios could well earn him occasional ninth-inning opportunities on days when Trivino or left-hander Jake Diekman is unavailable.

Romo gave up one hit and one walk while recording zero strikeouts in a scoreless eighth inning Friday against the Astros.

EDGE Analysis

The A's were trailing 6-4 when Romo entered the game, so it wasn't the highest leverage moment. However, Jake Diekman gave up three runs (two earned) in the ninth inning, so this is still a very fluid closer situation with Trevor Rosenthal (shoulder) on the injured list.