Continuing the series (Catcher, 1B) I chose to work my way around the diamond to 2B. I used the same methods as I did with 1B. To recap the methods, I require the player to play at least 30 games at 2B and then I weight their WAR production based on how many games they played at that position.
The first chart has all the information of 2B for their whole career. The second chart has the data for players when they played as Mariners. Looking at this chart, we can see the Mariners have had a long list of decent 2B that have provided value to the team and not too many atrocious players. Besides for a couple seasons by Bret Boone there has not been much spectacular production from the position. Overall the Mariners have generated around 63.3 WAR from 2B which works out to about 1.86 WAR per season which isn't special but also isn't too bad. I don't know what the final numbers will tell us but I bet 2B will be one of the better performing positions in M's history because we have pretty consistently been able to fill the spot with above replacement level players.
The best M's secondbaseman is easily Bret Boone. He had a couple seasons that were truly amazing (2001 and 2003). These are probably a couple of the best seasons ever by a Mariner and coming from 2B gives it a lot of value. Those two seasons from Boone produced 16.5 WAR. Its a little amazing that he was only able to total a little over 19 WAR which tells you how the rest of his years as a Mariner worked out. Overall Bret Boone contributed to around 30% of the Mariner's total WAR at 2B in his 7 seasons on the team. Besides Bret Boone, Reynolds and Julio Cruz were solid producers over their careers but there are a ton of guys with shorter Mariners careers that did just as well. At the bottom of the list, there weren't really any players who were really horrible and played 2B much. Larry Milbourne produced around -0.75 WAR in around 100 games at 2B as a Mariner. While he wasn't good, he wasn't godawful.
I'm not surprised to see Bret Boone be so high on the list but I am a little surprised he totaled only barely more than 20 WAR over his career which is not that impressive. I also thought Harold Reynolds would be more valuable and had never heard of Julio Cruz before doing this.
Best M's 2B of All Time: Bret Boone
Worst M's 2B of All Time: Larry Milbourne