In 140 days · Sat, Feb 27, 2027
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Saturday, February 27th, 2027
Pearce Mill Road, Allison Park PA
10 Miles · Ultra
29–48°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2026
26–53°F
dry
2025
34–48°F
rain
2024
42–63°F
rain
2023
27–49°F
rain
2022
23–45°F
dry
2021
36–55°F
dry
2020
22–33°F
dry
2019
23–52°F
dry
2018
30–55°F
dry
2017
30–48°F
dry
Best months to race in Pennsylvania →
Race-day forecast says layers
29°F at the start.
Gloves, ear warmers, throwaway layers, hand warmers — delivered before race day.
About this race
The first big race of the Pittsburgh winter is back for its 51st incredible year. The Spring Thaw is the longest continuously run race in Pennsylvania; sign up today and become a part of history!
The Spring Thaw starts and finishes at North Park's iconic boathouse and follows counterclockwise loops around the lake with 5, 10, 15, and 20 mile race options. This race is a great training/test event for the Pittsburgh Marathon or any other spring race!
The GCXCPa Promise: give back with every race. We are proud to continue to support 412 Food Rescue.
Course map
Train with a club
Run clubs near Allison Park to train with before race day.
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