I only count bWAR for the years that the players accumulated on their acquiring teams while under the team control at the time of the trade. In other words, I didn’t count any years added by new contracts or spent on other teams after subsequent trades. A positive or negative WAR is the result of the difference between the combined WAR for both sides as it pertains to Preller’s one.

2014-2015 OFFSEASON

TRADE #1: -12.2 WAR

TRADE #2: -8.7 WAR

TRADE #3: +3.0 WAR

TRADE #4: -1.2 WAR

TRADE #5: -0.8 WAR

TRADE #6: +1.0 WAR

TRADE #7: -2.5 WAR

TRADE #8: +3.8 WAR

TOTAL: -17.6 WAR

2015 SEASON

TRADE #1: -1.6 WAR

TRADE #2: -2.5 WAR

TRADE #3: 0.0 WAR

TOTAL: -4.1 WAR

2015-2016 OFFSEASON

TRADE #1: +1.2 WAR

TRADE #2: +0.4 WAR

TRADE #3: -0.7 WAR

TRADE #4: +1.5 WAR

TRADE #5: -5.6 WAR

TRADE #6: -1.3 WAR

TRADE #7: +0.1 WAR

TRADE #8: 0.0 WAR

TRADE #9: +0.2 WAR

TRADE #10: +0.5 WAR

TOTAL: -3.7 WAR

2016 SEASON

TRADE #1: +2.5 WAR

TRADE #2: +3.7 WAR

TRADE #3: -3.9 WAR

TRADE #4: +0.4 WAR

TRADE #5: +1.4 WAR

TRADE #6: +1.2 WAR

TRADE #7: 0.0 WAR

TRADE #8: -0.2 WAR

TOTAL: +5.1 WAR

2016-2017 OFFSEASON

TRADE #1: +0.3 WAR

TRADE #2: -2.4 WAR

TOTAL: -2.1 WAR

2017 SEASON

TRADE #1: -0.3 WAR

TRADE #2: +4.3 WAR

TOTAL: +4.0 WAR

2017-2018 OFFSEASON

TRADE #1: 0.0 WAR

TRADE #2: -0.9 WAR

TRADE #3: +2.0 WAR

TRADE #4: +0.9 WAR

TRADE #5: -0.9 WAR

TRADE #6: -0.2 WAR

TRADE #7: -1.7 WAR

TOTAL: -0.8 WAR

2018-2019 OFFSEASON

TRADE #1: -0.6 WAR

TRADE #2: -0.9 WAR

TRADE #3: +0.6 WAR

TRADE #4: +0.2 WAR

TRADE #5: -0.1 WAR

TOTAL: -0.8 WAR

2019 SEASON

TRADE #1: -1.0 WAR

TRADE #2: -0.2 WAR

TRADE #3: -0.4 WAR

TOTAL: -1.6 WAR

2019-2020 OFFSEASON

N/A

TOTAL: -21.6 WAR