It seems like a lot of rookies didn’t get the memo about Dog Days of Summer. Ignoring the concept of many rookies bumping into a wall over the course of the long season, several players with their own feats raised the heat to land on this edition of the Rookie Hot List, which covers games that run from July 21 to August were played. 3rd
Some are names that could compete for Rookie of the Year votes, while others are more unannounced rookies who make surprising contributions to big league teams. There were so many strong offensive performances that outstanding rookies like Brent Rooker, Ryan Jeffers, Dylan Carlson and Jonathan India failed.
Here are the hottest rookies in the past two weeks.
1. Randy Arozarena, OF, Rays (Top 30 graduate)
Arozarena led all rookies with a total of 34 bases and put down a .378 / .429 / .756 slashline, with his 1,184 OPS also leading this hot group. After a goal of 0.251 / 0.333 / 0.400 in the first half, the Rays outfielder has been on the way since the All-Star break with a start of 0.344 / .394 / .705. Arozarena has had five homers in the past two weeks, including among the rookies, which gives him 16 for the year.
2. Ryan Mountcastle, 1B / OF, Orioles (Top 30 Graduate)
After hitting 0.372 / 0.413 / 0.744 for an OPS of 1.157 in the past two weeks, Mountcastle is now at 0.262 / 0.307 / 0.468 for the year. This makes him the sixth among all qualified rookies in terms of slugging percentage. His four homers during that period give him 18, making him second among rookies, and his eight RBIs bring his season to 60 overall, good for second.
3. Andy Ibáñez, INF, Rangers (not eligible for the top 30)
The 28-year-old infielder was in the Rangers’ top 30 in 2017. Ibáñez scored .324 / .432 / .649 (1,080 OPS) with five extra base hits in the past two weeks, including three of the four home runs he had that season. That helped him to bring his season line to .230 / .286 / .385 and a positive WAR value of 0.8 to the current level.
4. Andrew Vaughn, OF, White Sox (Top 30 Graduate)
Vaughn hit 0.359 / 0.419 / 0.615 in the past two weeks as it looks like the 2019 number 3 overall pick will find out, with his 1.034 OPS fourth among all rookies during the period. The track helped Vaughn end July with a .308 / .347 / .516 line, his best month to date. He has up to 12 homers, ranks sixth among rookies, and has now snuck into the top 10 rookie OPS for the year (0.776).
5. Tanner Houck, RHP, Red Sox (No. 6)
Houck was up for a while in April and returned to help the Red Sox big league staff in mid-July, and he’s succeeding. While his workload is monitored – he’s played 8 2/3 innings over two starts in that time – he’s still dominated, allowing only one deserved run on four hits (.133 batting average against) while walking three and hitting 15 . tied for the third among all rookie pitchers. He has only amassed 22 innings in the major leagues this year but has a ratio of 2.45 ERA and 12.0 K / 9.
6. Wil Crowe, RHP, Pirates (Top 30 Graduate)
Victories may be tough for the Pirates, but Crowe, who won both of his starts in the past two weeks, weren’t. He completed 11 1/3 innings and only allowed two runs with five hits (0.132 BAA), went five and hit 13. That helped him finish his most effective month, ending July with an ERA of 3.46 and a BAA of 0.223 starts in five.
7. Eric Haase, C, Tigers (Top 30 Graduate)
Haase was the best rookie run producer in the past two weeks, running 17 runs in 12 games. He also met four homers and had three doubles with a .643 SLG and .983 OPS for the period. His performance brought him to second place in the rookie homer race with Mountcastle (18) and fourth place in the RBIs (46), while his .549 SLG only lagged behind Patrick Wisdom.
8. Kyle Muller, LHP, Braves (No. 5)
While the seven walks in 14 IP weren’t great, the big left-hander was otherwise dominant, allowing only 10 hits (0.204 BAA) and two runs while hitting 13 over his two starts. His .555 OPS against led all qualified rookies during the period and he now has a 2.43 ERA, .184 BAA and a 10.0 K / 9 rate in the top 29 2/3 IP of his big league career.
9. Emmanuel Clase, RHP, Indian (Top 30 Graduate)
A number of rookie reliefs have performed well over the past two weeks, and Clase gets one of the bottom two spots on this list as he continues to make it in high leverage situations. He did not allow a run over six outings that spanned 6 2/3 innings and resulted in only three hits and no walking runs. He hit four and went 3-for-3 in save opportunities, building his rookie lead total to 14 saves for the year to go with a 1.81 ERA and .220 BAA.
10. Louis Head, RHP, Rays (unranked)
Head is a 31-year-old rookie who was originally drafted by the Indians in 2012. He has been called up by the Rays five times, the last time being on July 23, he must return to Durham. The right-hander appeared in six games spanning eight innings, allowing only one undeserved run on four hits (0.138 BAA), going two and hitting 12. That gives him a combined 1.42 ERA and 0.156 BAA in 13 games the major leagues and picked up from his good work in Triple-A (1.96 ERA, .214 BAA) whenever he had an opportunity.