Projecting Both Miguel Tejada’s

One of the odder stories this season was the revelation that former MVP shortstop Miguel Tejada is actually two years older than the public had been to led to believe. Despite the questionable journalism techniques utilized in order to show that Miguel’s pants had in fact been on fire for sixteen or seventeen years, the fact remained that he was 33 years old, not 31 years old. A few months later, he is now 34, not 32 years old.

The first thought to cross my mind upon hearing this news was how it would effect his projection coming into this season. He was already a 32-yr old shortstop experiencing a noticeable decline in power. Now that we discovered him to be a 34-yr old shortstop, the sharp decline made a bit more sense. With the in-season Marcel projector readily available I plugged in Miguel’s current numbers but entered in both of his birthdays. Here are the results:

32 yr – 2nd Half: .293/.346/.455, 8 HR, .801 OPS
32 yr – Total: .284/.329/.435, 18 HR, .764 OPS

34 yr – 2nd Half: .291/.344/.452, 8 HR, .796 OPS
34 yr – Total: .283/.328/.434, 18 HR, .762 OPS

In 2004, he posted a .534 slugging percentage as a 30 year old (thought to be 28 year old). Since then, the same metric has decreased in each year and, if his true talent level holds up in the second half, the .434 would again show a decline from the year prior. His true talent level was barely affected by the change in age based on these in-season projections, but moving forward this level will have two lost years to take into account.

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Eric is an accountant and statistical analyst from Philadelphia. He also covers the Phillies at Phillies Nation and can be found here on Twitter.

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Considering your title, “Projecting Both Miguel Tejada’s”, what exactly are the Tejadas possessing?