diff --git a/config.example.json b/config.example.json
index cad1b09..51c40a7 100644
--- a/config.example.json
+++ b/config.example.json
@@ -5,6 +5,10 @@
 
 	"threads": 2,
 
+	"estimationWindow": "15m",
+	"luckWindow": "24h",
+	"largeLuckWindow": "72h",
+
 	"stratum": {
 		"timeout": "15m",
 		"blockRefreshInterval": "1s",
diff --git a/go-pool/pool/pool.go b/go-pool/pool/pool.go
index cf3cb2f..6e0b555 100644
--- a/go-pool/pool/pool.go
+++ b/go-pool/pool/pool.go
@@ -6,6 +6,7 @@ type Config struct {
 	BypassShareValidation   bool     `json:"bypassShareValidation"`
 	Stratum                 Stratum  `json:"stratum"`
 	Daemon                  Daemon   `json:"daemon"`
+	EstimationWindow        string   `json:"estimationWindow"`
 	LuckWindow              string   `json:"luckWindow"`
 	LargeLuckWindow         string   `json:"largeLuckWindow"`
 	Threads                 int      `json:"threads"`
diff --git a/go-pool/stratum/stratum.go b/go-pool/stratum/stratum.go
index a58ed36..524bb6a 100644
--- a/go-pool/stratum/stratum.go
+++ b/go-pool/stratum/stratum.go
@@ -56,6 +56,14 @@ func NewStratum(cfg *pool.Config) *StratumServer {
 	timeout, _ := time.ParseDuration(cfg.Stratum.Timeout)
 	stratum.timeout = timeout
 
+	estimationWindow, _ := time.ParseDuration(cfg.EstimationWindow)
+	stratum.estimationWindow = estimationWindow
+
+	luckWindow, _ := time.ParseDuration(cfg.LuckWindow)
+	stratum.luckWindow = int64(luckWindow / time.Millisecond)
+	luckLargeWindow, _ := time.ParseDuration(cfg.LargeLuckWindow)
+	stratum.luckLargeWindow = int64(luckLargeWindow / time.Millisecond)
+
 	// Init block template
 	stratum.refreshBlockTemplate(false)