The Sekhon Indian Air Force Marathon 2025 (SIM-25) will be held on Sunday, November 2, 2025, as a grand tribute to Flying Officer Nirmal Jit Singh Sekhon, the sole Indian Air Force officer awarded the Param Vir Chakra for his heroic sacrifice in the 1971 Indo-Pak War. The flagship event will be flagged off from Jawaharlal Nehru Stadium, New Delhi, simultaneously conducted at 60 Air Force stations across India, uniting over 93,000 runners nationwide. The marathon features multiple categories including a Half Marathon (21.097 km), 10 km, and 5 km races, promoting fitness, patriotism, and national unity under the theme “Run with Pride, Soar with Spirit.” Supported by major organisations like Indian Oil Corporation, IDFC First Bank, HAL, and BEL, the event aligns with the Government of India’s Fit India Movement, encouraging wellness and community spirit. The marathon symbolises the IAF’s values of courage, discipline, and unity, bridging civilians and air force personnel, and inspiring a culture of resilience and shared national pride across India.