by ad_hoc
On the Play-Agricola site Field Watchman has won 50% of the time since January.63 fieldwatchman - 1.35 - Plays (168 / 184 = 91.3%) - Wins (85 / 168 = 50.6%) - (41.4) - (1.5) - PWR = 4.4
So a slightly below average win rate since a tie is a shared win.
I don't play a lot of 2er but I will agree with the above posters on why this is. In 2er you should be blocking your opponent by taking good resources yourself.
If you spend your time taking grain to plow fields, esp. early on, then you are leaving the board wide open for your opponent.