Ranger School Requirements and the RCFA Entry Test

Meeting the physical entry requirements for U.S. Army Ranger School means passing the Ranger Combat Fitness Assessment (RCFA). We run a 55+ biomarker panel and a physician reads it, which gives you a measured baseline to train from. The RCFA replaced the legacy physical assessment in June 2025. You must clear a seven-component tactical circuit in 12 minutes 30 seconds or less, run four miles in 32 minutes or less, and do six dead-hang chin-ups. Train for these events in load carriage, aerobic capacity and strength, and recheck your baseline after the course.

The Ranger Combat Fitness Assessment Entry Standards

In June 2025, the Airborne and Ranger Training Brigade adopted the Ranger Combat Fitness Assessment (RCFA) as the entry requirement for the Ranger Course.¹ This standard replaced the legacy Ranger Physical Assessment (RPA). The RPA consisted of 49 push-ups, 59 sit-ups, a five-mile run in 40 minutes, and six chin-ups.^1,2

The current assessment tests your operational readiness through three distinct events:

The tactical circuit evaluates your capacity to perform intense physical tasks under load.¹ You begin with an 800-meter run in ACU trousers and boots. Next, you must negotiate a six-foot wall, which you have to clear within the first eight minutes of starting the circuit. Failing to clear this wall within that eight-minute window constitutes an immediate failure.¹

After the wall, you perform three-to-five-second rushes between sandbag positions. You then pick up two five-gallon water cans, weighing approximately 40 pounds each, and carry them across a designated distance before returning them. You immediately transition to loading a 40-pound sandbag onto a platform for 16 lifts, followed by a 160-pound sled drag. You finish the circuit with a second 800-meter sprint.¹

Once you complete the circuit within the 12:30 cutoff, you take a 25-minute break and change into the physical training uniform.¹ The second event is an individual four-mile run. You must complete the run in 32 minutes or faster, crossing the two-mile turnaround point by 17 minutes.¹

The final event tests your upper-body pulling strength with six dead-hang chin-ups performed with your palms facing toward your body.¹ If you fail to complete six chin-ups on your initial attempt, the standard provides one retest after a mandatory 10-minute rest. A second failure on the retest is final.¹ Train the events in the order you will be tested, so your six chin-ups are there after the circuit and the run.

Course Structure Across the Three Training Phases

The complete U.S. Army Ranger Course runs for 62 days and is organized into three distinct geographic phases: Darby Phase, Mountain Phase, and Florida Phase.² On average, only 50 percent of an incoming class completes the Darby Phase.² Progression through each phase requires that you successfully lead a patrol, earn positive peer evaluations, and accumulate limited negative spot reports.²

Darby Phase takes place over 21 days at Fort Benning, Georgia, conducted by the 4th Ranger Training Battalion.² This phase opens with Ranger Assessment Phase (RAP) week. During RAP week, your evaluation includes the Combat Water Survival Assessment, day and night land navigation, testing on common Soldier skills, the Bayonet Assault Course, and the Malvesti Obstacle Course.² On day four, you conduct a 12-mile foot march carrying an average load of 47 pounds.² If you are airborne-qualified, you also conduct a parachute jump onto Fryar Drop Zone on day six.²

Mountain Phase lasts 21 days at Camp Frank D. Merrill near Dahlonega, Georgia, administered by the 5th Ranger Training Battalion.² This phase trains you in military mountaineering and tactical combat patrols in rugged terrain. Your training begins with four days of mountaineering instruction, which includes completing a 200-foot night rappel at Yonah Mountain.² You then move through four days of combat techniques followed by 10 days of student-led tactical patrols.²

Florida Phase takes place at Camp James E. Rudder on Eglin Air Force Base, Florida, operated by the 6th Ranger Training Battalion.² Training in this environment begins with an airborne assault into Eglin, moves into three days of waterborne operations and small-boat training, and concludes with a 10-day field exercise.² SERE School is another Army course where food and sleep are used as an added challenge.

Physiological Demands and Body Composition Changes

Two studies of the eight-week Ranger course measured what sustained field training under energy restriction did to hormones and body composition.

In a 2000 study of the eight-week Ranger course as it ran then, Friedl and colleagues followed students with daily energy deficits of about 1,000 to 1,200 kilocalories and documented marked endocrine suppression.³ Total testosterone approached castrate levels, dropping to an average of 4.5 ± 3.9 nmol/L. Circulating insulin-like growth factor I (IGF-I) dropped by approximately half, and triiodothyronine (T3) fell below normal reference ranges.³ However, researchers also demonstrated that refeeding produced prompt recovery of T3, testosterone, and IGF-I concentrations, even while the other stressors of the course continued.³

A single hormone result cannot show how your physiology changed across the course. A baseline and a later recheck give your physician a comparison for testosterone, IGF-I, and T3.

A 2007 study by Nindl and colleagues observed 50 men across eight weeks of Ranger training with daily energy deficits of roughly 1,000 kilocalories.⁴ The physiological impact included:

• A 13 percent decrease in total body mass
• A 50 percent loss of total body fat
• A 6 percent reduction in fat-free mass
• A 16 percent reduction in vertical jump height
• A 21 percent decrease in explosive power output
• A 20 percent decrease in maximal lifting capacity

During this period of intense training, circulating total testosterone and IGF-I declined significantly while serum cortisol rose.⁴ A testosterone blood test before a high-stress training pipeline gives you and your physician a reference point for your post-course recovery.

Evidence-Based Training Strategies for Load Carriage and Durability

Build strength and work capacity for Ranger School while leaving room to recover between loaded sessions. Human Performance Resources by CHAMP (HPRC), citing the Army Public Health Center, recommends limiting ruck marches to one every 10 to 14 days.⁵ Recovery from a ruck march can take two to three days.⁵

Your weekly schedule should incorporate three to four resistance and cardiovascular sessions wrapped around your ruck march days for a minimum of four weeks prior to the event.⁵ HPRC states that your cardio sessions should be performed unloaded.⁵ Avoid cramming frequent ruck marches into the weeks right before the course. Instead, target high relative strength: working toward a squat and bench press that both exceed your body weight provides a solid foundation for carrying tactical loads.⁵

A generic program applies the same structure to every candidate. A plan built around your measured baseline can be rechecked and adjusted as your recovery changes.

Musculoskeletal health requires equal attention. A 2025 systematic review of 70 studies by Campbell and colleagues identified that beginning military training without prior exercise of at least three sessions per week or at least seven hours per week over the preceding year is a documented risk factor for stress fractures.⁶ Additional risk factors identified in recruits include an underweight body mass index, low serum 25-hydroxyvitamin D, consuming more than 10 alcoholic drinks per week, prior nonsteroidal anti-inflammatory drug (NSAID) use, and exposure to the early high-load weeks of training.⁶ For the bone side of that list, see our bone strength protocol.

Aerobic fitness also tracked with injury risk in basic training. In a study of 756 men and 474 women in Army Basic Combat Training, Knapik and colleagues found that lower push-up counts, slower two-mile run times, lower peak oxygen consumption (VO2), and smoking were all risk factors for time-loss injuries.⁷ In a multivariate analysis, lower peak VO2 and cigarette smoking remained independent predictors of training-related injury.⁷ Build recovery days into your preparation as well; our muscle recovery guide covers how to plan them around hard training.

The Opt Take on Ranger School Requirements

A physician-led loop gives you a measured view of your physiology before and after a demanding course. A physician reads your baseline panel against your training demands and recovery. A follow-up panel provides a direct comparison after sustained physical stress.

The Ranger studies documented declines in testosterone, IGF-I, and T3 during training, followed by recovery with refeeding. Your physician can evaluate the pattern across both panels and adjust your plan as new data comes in. One run time or one hormone value does not provide that trend.

Opt Health starts with a panel of 55+ biomarkers spanning hormones, inflammation, cardiovascular risk, and more. A physician reads the results and builds a personalized plan around your numbers. Panels and physician consultations repeat every 3 to 4 months, allowing the plan to change with your measured response. Membership is required for treatment because continuity depends on repeated labs, physician review, and adjustment over time.

Get started: Begin with Opt Health, where a physician reads your labs, builds your plan, and adjusts it over the loop.

Frequently Asked Questions

This content is for informational purposes and does not replace evaluation, diagnosis, or treatment by a qualified medical professional.