diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ce1b7b..0e74300 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.9.10] - 2026-07-09
+
+### Changed
+- Refactor `TrackCalculator`: extract a single `dig_key` helper for symbol/string key access, removing duplicated fallback logic across coordinate, elevation, and time readers (no behavior change)
+
 ## [1.9.9] - 2026-06-17
 
 ### Changed
diff --git a/lib/calcpace/track_calculator.rb b/lib/calcpace/track_calculator.rb
index 6417db2..ee9f694 100644
--- a/lib/calcpace/track_calculator.rb
+++ b/lib/calcpace/track_calculator.rb
@@ -74,8 +74,8 @@ def track_distance(points)
     return 0.0 if points.nil? || points.size < 2
 
     total = points.each_cons(2).sum do |a, b|
-      haversine_distance(fetch_coord(a, :lat), fetch_coord(a, :lon),
-                         fetch_coord(b, :lat), fetch_coord(b, :lon))
+      haversine_distance(dig_key(a, :lat), dig_key(a, :lon),
+                         dig_key(b, :lat), dig_key(b, :lon))
     end
 
     total.round(2)
@@ -180,25 +180,24 @@ def accumulate_elevation(gain, loss, ele_a, ele_b)
     end
   end
 
-  def fetch_coord(point, key)
+  def dig_key(point, key)
     point[key] || point[key.to_s]
   end
 
   def fetch_ele(point)
-    val = point[:ele] || point['ele']
-    val&.to_f
+    dig_key(point, :ele)&.to_f
   end
 
   def validate_points_have_time(points)
     points.each_with_index do |pt, i|
-      next if pt[:time] || pt['time']
+      next if dig_key(pt, :time)
 
       raise ArgumentError, "Point at index #{i} is missing :time key required for splits"
     end
   end
 
   def point_time(point)
-    t = point[:time] || point['time']
+    t = dig_key(point, :time)
     t.respond_to?(:to_f) ? t.to_f : t
   end
 
@@ -228,8 +227,8 @@ def collect_splits(points, split_km)
   end
 
   def process_segment(point_a, point_b, split_km, state)
-    segment_km = haversine_distance(fetch_coord(point_a, :lat), fetch_coord(point_a, :lon),
-                                    fetch_coord(point_b, :lat), fetch_coord(point_b, :lon))
+    segment_km = haversine_distance(dig_key(point_a, :lat), dig_key(point_a, :lon),
+                                    dig_key(point_b, :lat), dig_key(point_b, :lon))
     state[:accumulated_km] += segment_km
 
     while state[:accumulated_km] >= split_km * state[:split_number]
diff --git a/lib/calcpace/version.rb b/lib/calcpace/version.rb
index 8492a63..6756319 100644
--- a/lib/calcpace/version.rb
+++ b/lib/calcpace/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 class Calcpace
-  VERSION = '1.9.9'
+  VERSION = '1.9.10'
 end