专业马拉松配速计算器，支持全马、半马等多种赛事配速计算。帮助跑者精准规划比赛时间和训练速度，提供配速分析和赛后数据统计，让您的跑步训练更科学高效。
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"updateDt": "2026-01-20 05:14:28",
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