Modified Illinois Agility Test Calculator
Quick Answer
This calculator instantly evaluates your Modified Illinois Agility Test performance, providing a rating based on estimated norms and sport-specific interpretation for athletes.
- Calculates agility rating from excellent to needs improvement
- Based on Vescovi & McGuigan (2008) modified protocol
- Provides sport-specific analysis for soccer, basketball, rugby, and more
What is the Modified Illinois Agility Test?
The Modified Illinois Agility Test is a shorter version of the original Illinois Agility Test, designed to reduce testing time while maintaining the essential agility components. Proposed by Vescovi & McGuigan (2008), this modified version has the same layout but takes less time as it has less straight sprinting (2 x 10m instead of 4 x 10m), while the same movement elements remain.
The original Illinois Agility Test may be heavily influenced by the ability to sprint quickly over short distances instead of measuring the ability to change directions. Also, it can take longer than 15 seconds and fatigue can play a part. This modified version addresses these limitations by providing a purer measure of change of direction ability with less emphasis on pure sprinting speed.
Test purpose: To test running agility using various turns and movements over a shorter time period than the standard Illinois Agility Test.
How to Perform the Modified Illinois Agility Test
Equipment Required
- Flat non-slip surface
- 8 marking cones
- Stopwatch or timing gates (recommended)
- Measuring tape
Course Layout
The length of the course is 10 meters and the width is 5 meters. Four cones are used to mark the start, finish and the two turning points. Another four cones are placed down the center an equal distance apart. Each cone in the center is spaced 3.3 meters apart.
Test Procedure
- Starting Position: Participants lie on their front (head to the start line) with hands by their shoulders.
- Start: On the 'Go' command, the stopwatch is started, and the athlete gets up as quickly as possible.
- Forward Sprint: Run forward 10 meters to the first turning cone.
- Slalom: Weave through the slalom course of four cones, then back again.
- Final Sprint: Run the final 10 meters back past the finishing cone.
- Recording: The time is stopped when the athlete crosses the finish line. Several trials should be completed, with the best score recorded.
Pre-test Protocol: Explain the test procedures to the subject. Perform screening of health risks and obtain informed consent. Prepare forms and record basic information such as age, height, body weight, gender and test conditions. Measure and mark out the test area using cones. Check timing gate equipment and calibrate if required. See more details of pre-test procedures.
Estimated Performance Norms for the Modified Illinois Test
⚠️ Important Note: Unlike the standard Illinois Agility Test, there are no formally established norm values for the modified version. The values below are estimates based on the reduced distance covered (approximately 40m vs 60m) and are intended as guidelines for interpretation. Always compare results within your own testing group for the most meaningful analysis.
Estimated Norms for Males (16-19 Years)
| Rating | Time (seconds) | Interpretation |
|---|---|---|
| Excellent | < 10.0 | Elite agility for competitive sports |
| Good | 10.0 - 10.8 | Above average for team sports |
| Average | 10.9 - 12.0 | Typical for recreational athletes |
| Below Average | 12.1 - 13.0 | Improvement recommended |
| Poor | > 13.0 | Significant training needed |
Estimated Norms for Females (16-19 Years)
| Rating | Time (seconds) | Interpretation |
|---|---|---|
| Excellent | < 11.5 | Elite agility for competitive sports |
| Good | 11.5 - 12.4 | Above average for team sports |
| Average | 12.5 - 14.5 | Typical for recreational athletes |
| Below Average | 14.6 - 15.5 | Improvement recommended |
| Poor | > 15.5 | Significant training needed |
Modified vs Standard Illinois Test Comparison
Understanding the differences between these two versions helps coaches and athletes select the appropriate test for their needs:
| Feature | Modified Version | Standard Version |
|---|---|---|
| Total Distance | ~40 meters | ~60 meters |
| Sprint Sections | 2 x 10m | 4 x 10m |
| Typical Time Range | 8-15 seconds | 15-22 seconds |
| Fatigue Factor | Minimal | Can be significant |
| Sprint Speed Influence | Reduced | Higher |
| COD Focus | Higher | Mixed with speed |
| Published Norms | Limited (estimated) | Well-established |
Sport-Specific Applications
The Modified Illinois Agility Test is valuable across many sports that require rapid changes of direction:
Soccer and Football
Soccer players benefit significantly from agility testing as the sport requires constant direction changes, quick turns while dribbling, and defensive positioning. Elite soccer players typically demonstrate excellent scores on agility tests due to the sport's demands for quick lateral movements and rapid deceleration-acceleration patterns.
Basketball
Basketball players require exceptional agility for defensive slides, fast-break transitions, and offensive moves around defenders. The modified test's emphasis on quick direction changes mirrors the stop-and-go nature of basketball movement patterns.
Rugby and American Football
While these sports require greater mass and power, agility remains crucial for evading tackles, making cuts, and defensive positioning. The modified test provides useful data while minimizing fatigue that might affect larger athletes in longer tests.
Racquet Sports
Tennis, badminton, and squash players benefit from exceptional change of direction ability. The modified test's reduced emphasis on straight-line speed makes it particularly relevant for court-based sports with frequent direction changes.
How to Improve Your Agility Score
Based on your calculator results, here are evidence-based strategies to improve your Modified Illinois Agility Test performance:
If Your Score Needs Improvement
- Cone Drills: Practice the exact test pattern at submaximal speeds before progressing to full effort
- Acceleration Training: Short sprints of 5-10m with emphasis on explosive starts
- Deceleration Work: Practice controlled stopping from various speeds
- Lateral Movement: Side shuffles, carioca drills, and lateral bounds
If Your Score is Average
- Reactive Drills: Add decision-making elements to agility training
- Sport-Specific Patterns: Practice direction changes relevant to your sport
- Strength Training: Focus on single-leg exercises for improved change of direction power
If Your Score is Good to Excellent
- Maintain Current Training: Continue agility work 2-3 times per week
- Add Complexity: Incorporate ball handling or sport-specific skills into agility drills
- Competition Simulation: Practice under fatigued conditions to maintain performance in games
Test Advantages and Limitations
Advantages
- Simple test to administer, requiring minimal equipment
- Tests ability to turn in different directions and at different angles
- Can be completed in a quicker time (reducing fatigue influence)
- Less emphasis on straight sprinting speed than the standard version
- Better suited for repeated testing or large groups
Disadvantages
- Footwear and running surface can affect times significantly
- Results can be subject to timing inconsistencies without electronic timing gates
- No formally published norm values for the modified version (norms in this calculator are estimates)
- Less widely used than the standard version, limiting comparison data
Frequently Asked Questions
What is a good time for the Modified Illinois Agility Test?
For males aged 16-19, an excellent time is under 10.0 seconds, while good is 10.0-10.8 seconds. For females, excellent is under 11.5 seconds, and good is 11.5-12.4 seconds. These are estimated values as formal norms don't exist for the modified version.
How does the Modified Illinois Test differ from the standard version?
The modified version reduces straight sprinting from 4 x 10m to 2 x 10m while keeping the same weaving pattern. This results in faster completion times (typically 8-12 seconds vs 15-20 seconds) and reduces the influence of sprint speed on the final score.
Why use the Modified Illinois Test instead of the standard version?
Choose the modified version when you want to minimize fatigue effects and focus more on agility rather than sprint speed. It's better for repeated testing, testing multiple athletes quickly, or when working with athletes where cardiovascular endurance might mask agility ability.
How accurate is this calculator without formal norms?
The estimated norms in this calculator are based on the relationship between the modified and standard test distances (approximately 65-70% of standard test time). While useful for general guidance, the most meaningful comparisons are within your own testing group over time.
How often should I test my agility?
For training monitoring, test every 4-6 weeks to track progress. For pre-season assessment, test at the start and end of the preparation phase. Always ensure adequate rest (48 hours from intense training) before testing for accurate results.
Can I compare my Modified Illinois score to standard Illinois norms?
Direct comparison isn't recommended due to the different distances involved. However, the calculator provides an estimated equivalent standard Illinois time for reference. For accurate comparisons, always compare like with like—modified to modified, standard to standard.
What factors can affect my test results?
Surface type (grass vs indoor court), footwear, warm-up quality, timing method (stopwatch vs electronic gates), fatigue level, and environmental conditions can all significantly affect results. Standardize these factors for reliable comparisons between tests.
References
- Vescovi, J. D., & McGuigan, M. R. (2008). Relationships between sprinting, agility, and jump ability in female athletes. Journal of Sports Sciences, 26(1), 97-107.
- Getchell, B. (1979). Physical Fitness: A Way of Life. 2nd Ed. New York: John Wiley and Sons.
- Hachana, Y., Chaabène, H., Nabli, M. A., et al. (2013). Test-retest reliability, criterion-related validity, and minimal detectable change of the Illinois agility test in male team sport athletes. Journal of Strength and Conditioning Research, 27(10), 2752-2759.
- Raya, M. A., Gailey, R. S., Gaunaurd, I. A., et al. (2013). Comparison of three agility tests with male servicemembers. Journal of Rehabilitation Research and Development, 50(7), 951-960.
- Sheppard, J. M., & Young, W. B. (2006). Agility literature review: Classifications, training and testing. Journal of Sports Sciences, 24(9), 919-932.
- Davis, B., et al. (2000). Physical Education and the Study of Sport. 4th Ed. Harcourt Publishers.
- Roozen, M. (2004). Illinois agility test. NSCA's Performance Training Journal, 3(5), 5-6.
Similar Agility Tests
- Illinois Agility Test — the original version with established norms and 4 x 10m sprints
- Illinois Agility Test (Short) — another modification which reduces the distance covered
- T-Test — running a T-shape course involving forward, lateral, and backwards running
- Zig-Zag Test — tests ability to change direction at sharp angles
- Figure-of-Eight Agility Run Test — curved running pattern for continuous direction change
Related Pages
Any comments, suggestions, or corrections? Please let us know.
