2016 is shaping up to be the year of runs, with obstacle courses, a run for cancer and one along the soon-to-be revamped Rail Corridor. If you haven't been training, don't fret; there's still time to prepare for some of these, or to join a boot camp. Check them out below:

The Viper Challenge (Jan 23)

Those who are incredibly fit and have been training regularly should test their mettle at The Viper Challenge, a 10km obstacle with over 15 obstacles. Participants can sign up as individuals or as a team to complete the course, so it's best to choose a variety of people with different strengths. If this sounds too crazy, you can volunteer, which gives you a voucher to train up for next year's challenge for a month. $79-109, Sentosa Island, 7am-5pm.

Run For Hope 2016 (Jan 31)

The 23rd Run For Hope is organized by the Four Seasons Hotel Singapore, Regent Singapore and the National Cancer Centre Singapore (NCCS). Choose to run either the 3.5km or 10km route, all in the name of cancer research. As this run is strictly for charity, no medals will be given out. But at least you can say you contributed to a good cause as all proceeds will go into cancer research. 7am, The Promontory at Marina Bay, $55.

Compressport Rail Corridor Run (Jan 31)

The 10km run starts from the Bukit Timah Railway Station to the Tanjong Pagar Railway Station, and the terrain isn't going to be easy as you will be running on crushed stones where the railway used to travel on—but the view makes up for everything. If you can't handle the 10km one, there is also a 5km option that ends at the open-air carpark at Queensway Road, which is near Queensway Shopping Centre. $39-59, Tanjong Pagar Railway Station, 9am.

Marina Run (Feb 20)

This 5km, 10km or 21km half marathon goes through the scenic route from the Gardens by the Bay East, to Tanjong Rhu Promenade and East Coast Park. The fun is at the 5km run, where everyone will be given a pistol to shoot at one another. If you're more competitive, you'll get a trophy for coming in first for the 10km race and the pot for the 21km race is $300 for both men and women. $40, Gardens by the Bay, 4:30pm.

Garang Run (May 1)

You have ample time to train for this race, so gear up for 12 hours of running around the MacRitchie Resevoir. Choose from the Garang, Very Garang or Extremely Garang categories, where you'll have to run 5km (one to nine rounds), 50km (10 to 19 rounds) and 100km (20 rounds and above) respectively in this time frame. The person who completes the most runs will also receive the title of "Most Garang Warrior." This run is also environmentally friendly, so bring your own bottle. Food will be provided. $65, MacRitchie Resevoir, 7am.