Chicago Cubs: Comparing Kris Bryant and Pete Alonso’s rookie seasons

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Every so often, a player will emerge and simply wow fans. This year that player was Mets first baseman Pete Alonso who was voted as the 2019 National League Rookie of the Year earlier this week. Alonso exploded out of the gate, memorizing the Mets faithful with booming home runs and an extra level of excitement every time he stepped to the plate.

He set the rookie record for most home runs in a single season, blasting 53 round-trippers. He worked to a 148 OPS+ and was undoubtedly the catalyst in the middle of the New York order on a daily basis. Alonso brought a level of excitement not seen at Citi Field in a few years – enough to have Mets fans dreaming of the future.

Meanwhile, the Chicago Cubs have their own superstar in Kris Bryant, who impressed in his own way four years ago in his journey to earning the same honor. Bryant is by and large in the eyes of many fans, the catalyst driving the Cubs. The 2015 season was his coming-out party, and now it is time to compare the two seasons and what to expect moving forward for each competitor.

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(Photo by Mike Stobe/Getty Images) /

Chicago Cubs: A tale of two superstars

It is no surprise how lucky the Cubs were when the Houston Astros selected starting pitcher Mark Appel first overall in 2013 and not Bryant. It allowed Theo Epstein to jump on the Bryant bandwagon and make him their third baseman of the future.

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The same can be said about Alonso. Although Alonso did not carry the same notoriety as Bryant, by the time Alonso fell into the end of the second round in 2016, it gave New York the opportunity they were looking for.

I remember Bryant’s first game vividly. Bryant, in a day game versus the San Diego Padres, finished 0-for-4 with three strikeouts. Simply a debut to forget. However, in his next four games following Bryant hit .571 with six RBI and only one strikeout.

Alonso had a similar debut, although not as ugly. He finished 1-for-4 with two strikeouts. His next four games following, Alonso hit .429 with a home run and six RBI. Similar debuts, similar starts.

Over his first month in the Show, Bryant slashed .291/.426/.476 with four home runs and 24 RBI. He also managed to work 24 walks and posted a ridiculous 152 wRC+. Alonso, meanwhile, slashed .306/.398/.684 with nine home runs, 24 RBI, and posted a 179 wRC+. Each dominant in their own way.

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Photo by Jonathan Daniel/Getty Images) /

Chicago Cubs: Well deserved Rookies of the Year

When you look at each players’ first year in the Show, there are striking similarities in production. Bryant finished his rookie campaign playing 151 games, slashing .275/.369/.488 with 26 home runs, 99 RBI, 13 stolen bases, and a 136 wRC+. It was good enough for a 6.1 WAR.

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Alonso posted a slash line of .260/.358/.583, breaking a rookie record with 53 home runs. He managed to drive in 120 runs and finished with a 143 wRC+ giving him a 4.8 WAR — much more power and home runs, however close in all other categories.

The big difference between the two players I found was their ability to hit in high leverage situations. In 68 games spanning 89 plate appearances, Bryant slashed .299/.371/.455 with a .825 OPS, suitable for a 126 wRC+. He could certainly be counted on. Alonso, unfortunately, did not do well in high leverage situations. The big first baseman slashed only .193/.304/.456 with a .760 OPS and a 92 wRC+.

Regarding their defense, Bryant finished with a 3 DRS and 1.5 UZR/150 in 1209 1/3 innings at the hot corner. Alonso struggled at first base, posting a -6 DRS with a 1.4 UZR/150 in 1328 innings. The two were nearly identical in UZR/150, yet Bryant saved many more runs.

(Photo by Nuccio DiNuzzo/Getty Images)
(Photo by Nuccio DiNuzzo/Getty Images) /

Chicago Cubs: The ultimate verdict

Despite Alonso’s record-setting rookie season, unbiasedly, I believe overall, Bryant still had a better rookie performance. His campaign ultimately helped the Cubs to a postseason berth and a run to the National League Championship Series.

The Mets did significantly improve with the help of Alonso. They made a run at the wild card and finished ten games north of the .500 mark, a step up from their 77 win season the year before. In the end, however, it just was not enough.

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It could be a difficult task in projecting out the future of each player, but I believe in the end, Bryant will have had the better career. Bryant bounced back in 2019 after a disastrous 2018 season, and Steamer projects Bryant at .273/.376/.507 with 31 home runs and 91 RBI for 2020. Alonso is projected at .251/.342/.531 with 41 home runs and 98 RBI. It will be a fun thing to watch over the next decade.

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