Bro, I think it is most definetly possible. I shaved off 4 minutes from my 5k pr in about 2 and a half months. I went from 21:30 to 17:35. The trick? Go as hard as you can. Put in high mileage weeks but make them quality miles. I only put in about 35 miles a week but it was all split between tempos, segments, intervals, and fartleks. Sub 30 Minute 5k (9:39 per mile) 22 minute 5k (7:03 per mile) 5k Training Plan for Beginners: 28 minute 5k (9:00 per mile) Sub 20 minute 5k (6:25 per mile) 26 minute 5k (8:21 per mile) 18 minute 5k (5:45 per mile) 24 minute 5k (7:42 per mile) 16 minute 5k (5:10 per mile) Most of it was easy mileage @ 9-9:30/min with an occasional 5-6mile run at 8min pace. I changed my routine after the July4 5K. I incorporated speedwork into my schedule . I usually do one 6-8x400intervals , with two 30min easy runs and one easy 60min run every week. I usually reach speeds of 6:30-6:50 during my intervals. It takes 30 to 37 minutes to walk 3K at a moderate pace. 5K: 5 kilometers equals 3.1 miles. This is a common race distance for charity walks and fun runs (although competitive runners also participate in 5Ks and run them at a fast pace). It takes about an hour to walk 5K at a moderate pace. 10K: 10 kilometers equals 6.2 miles. This is a common 29 minutes would put you in the middle of the pack, or on the slower end of mid-pack, in most larger 5k races. World's best for the 5k is 12:59.5, winning times in local road races are often around 15:00, sub-20:00 puts you ahead of the mid-packers, 30:00-35:00 is about what you'd expect from a new runner in their 30s/40s running their first 5k Second 2.4 is a sprint at 80%+ max effort. I run 16.5 up to 18. Final 2.4 is endurance. Drop to hard comfort at 4.8 point (I go to about 15 from 18) then build back up as high as you can until 7.2. This program will increase 3km to 5km race times when combod with some reg road runs. ALWAYS HAVE A REST DAY (this means from running, leisurely bike ride is good for your mobility. Then play with diet, time, hydration, stride length, and run length. Gradually increase the distance after you hit 5K (3.1miles) AND then when you can go further 10k (6.2 miles) do a mix between longer and shorter runs. People who diminish others achivements by saying things like "20 min 5K is a peice of piss" are assholes. I ran a 17:30 5K at about 155lbs and have run multiplr around 19:30 at 165 (75kg). I'm not "big" or really strong, but you dont need to be skin and bones. My 17:30 ws after running arounf 60-70miles per week with 2-3 days of speedwork a week. krOgOq2.

is a 21 minute 5k good