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 Van Wagenen’s one.
2018-2019 OFFSEASON
TRADE #1: +0.1 WAR
TRADE #2: -0.5 WAR
TRADE #3: +1.0 WAR
TRADE #4: -0.5 WAR
TOTAL: +0.1 WAR
2019 SEASON
TRADE #1: +0.2 WAR
TRADE #2: +1.3 WAR
TOTAL: +1.5 WAR
2019-2020 OFFSEASON
N/A
TOTAL: +1.6 WAR