12:00 Why It's So Hard to Get Into a Marathon Right Now 12:00 London Marathon 2027: Two Days, 100,000 Runners 16:00 Perseverance's marathon pace: one mile every 74 days 12:00 Why It's So Hard to Get Into a Marathon Right Now 12:00 London Marathon 2027: Two Days, 100,000 Runners 16:00 Perseverance's marathon pace: one mile every 74 days