Running Bitcoin Challenge, Day 4 Icy Woodland Intervals 13km 2.5km warmup + 4(2km comfortably hard, followed by 4mins rest) + 2.5km cool down 29/21km ✅ 🏃‍♂️ To honour Hal, join the #RunningBitcoinChallenge and put in the proof-of-work with us. 👉 http://secure.alsnetwork.org/goto/bitcoin-runners Thank you @f1989a96…bcaaf2c1 & Block for presenting. https://www.runningbitcoin.us #RunningBitcoinChallenge #HalFinney #ALSNetwork #RunForHal #ALS #MND