2:50 marathon with really limited mileage?

Could that be possible with lets say 37 miles per week or even bit lower even? i do alot of crosstraining, such as elliptical and indoor biking. And im in alright shape, so thinking to run a marathon in the spring of 26. Recent race results: 10k 36:00, 21k 1:21, 5k: 17:20. Have had issues with my shins but i can run 25miles per week safely. Havent ran a marathon in 3 years, last was 3:14.