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The 100-Day Test is currently the most important testing in breeding. It gathers enough facts, under standard conditions, to make an early selection of promising sires possible without waiting over years for the quality and success of their offspring to be confirmed.

Photo Above: As the highest-placing Hanoverian stallion at the 2004 100-Day Stallion Test at Paxton Farm, Devon Heir (De Niro-Ribana/ Rubinstein I) and owner Terry Mason-Esteban, Calif., were presented with the AHS Championship cooler by Executive Director Hugh Bellis-Jones. Devon Heir was bred by Ulrich Heitmann, Ger.

©2004 www.bobtarr.com


History in Europe

The history of the 100-Day Test reaches far back into the early 19th century, when the sport horse breeding industry established its initial test specifically for stallions. It all began in 1822 with special races to test imported English Thoroughbred stallions. By 1830, those breeding areas that used thoroughbred-cross stallions would regularly test those stallions at specially-held races.

Until the early years of the 20th century, only these special races were used to test the Thoroughbred-cross stallions, but later in the century the idea of a more complex testing was developed by including the adaptation of other testing elements such as the pulling test, established from 1905 on for stallions in Westphalia.


The exigencies of World War I demanded a large number of horses for military use, and sheer numbers overruled quality in breeding at that time. Finally, in 1926, the first formal testing facility for stallions was established for Trakehner breeding in East Prussia. Here, as well as from 1928 on at the state stud of Celle in Hanover all three-year-old stallions were tested over nearly a year-long period. The basic criteria in these early testings, such as temperament, willingness to work, and quality of movement, were similar to those we have today, while some special criteria, i.e. the pulling contest, have been altered over time.

In 1974 laws governing German breeding established the mandatory stallion testing over the minimum period of 100 days. Even so, for a long time afterwards, the state studs continued their traditional 11-month testing for their own stallions, which is nowadays still held for the state stud stallions at Celle (Hannover).

At the moment, we are monitoring the situation in Germany where the testing period has been reduced to 70 days with other options available. Whatever the outcome, we are sure, that the 100-Day Test will be adjusted to the needs of the breeding industry in the future as efficiently as it had been done in the past.

© susansexton.com  
An important componant of the 100-Day Stallion Test is the cross country performance phase where stallions are tested at speed over a course of approximately 4000 m over ten fixed obstacles. At least three independently judging experts evaluate the manner of galloping during the course and the stallion's jumping technique.  

Currently in Germany at two years of age, stallion candidates are presented to a commission of the Verband, and undergo a rigorous selection process. The stallions that pass this initial inspection are then presented at the main stallion licensing when they are two-and-a-half years old. This evaluation includes a veterinary exam, free jumping evaluation and assessment of gaits. The stallions in Germany become licensed in three fundamentally different ways:

Successful completion of the 70-Day stallion performance test with or without the
preliminary 30-Day Test

The combination of a 30-Day Test followed by successful competition participation at lower level classes

Performance successes in dressage and jumper classes at the S-Level or in three-day events at the M-Level

Stallions selected for the German State Stud undergo an 11-Month Test.

History in North America

In North America, the ISR/Oldenburg Registry established the first 100-Day Test in 1986, and has organized a test every other year since. In 1987, the American Hanoverian Society had its first testing at November Hill Farm. From 1988 on, the ISR/Oldenburg N.A. test was held at Rancho Murieta Equestrian Center near Sacramento, California. This series was interrupted when the fifth test was held at the Kentucky Horse Park in Lexington in 1994, and again in 2006 when the test was postponed for 12 months.

November Hill Farm held its last test in 1995, and therefore, since 1996 the ISR/Oldenburg Registry was forced to alternate test locations between the West and East Coast.

The 1998 testing was being jointly organized by the AHS and ISR/OLD NA at Paxton Farm, Batavia, Ohio. The test was being held under the auspices of the Federation of North American Sport Horse Registries. The training director was Helmut Schrant.

Many test criteria have changed over the past thirty years, as they have been adjusted to the state-of-the-art needs of contemporary sport horse breeding. For the ISR/Oldenburg N.A. as well as for other major registries this testing, (or similar performance requirements) are the mandatory second step for those stallions seeking a lifetime breeding license.

Value of the 100-Day Test

The stallion performance testing is the second step in the program for the stallion selection after licensing and before the evaluation of the offspring.

The 100-Day Test is currently the most important testing in breeding. It gathers enough facts, under standard conditions, to make an early selection of promising sires possible without waiting over years for the quality and success of their offspring to be confirmed.

The testing consists of a 100 day training period and the final performance test. The testing includes evaluation of the interior qualities of the stallion, such as character, temperament, ability and willingness to work, as well as jumping movement, jumping and performance abilities of the stallion. In the final testing, the stallions are judged for their basic gaits, their jumping ability, both free and under saddle, and for their performance while ridden cross country, according to standard rules and regulations.

©2003 Sheri Scott
Provisionally licensed – Of the eight stallions presented at the two 2003 AHS Stallion Licensing sites, two were provisionally licensed. The three-year-old colts Warcloud (Wolkentanz I-EM Ballone/Bolero), (shown above) and Donnersohn (Donnerhall-SPS Angelina/Archipel) both went on to successfully completed the 2004 100-Day Test at Paxton Farm and are now fully licensed and approved Elite stallions.

The results of these tests show clearly that they provide a relatively certain breeding evaluation of the stallions, if the testing and evaluation of the results are constantly upgraded.

Calculation of Results

In order to get its ISR-OLDENBURG N.A. Lifetime Breeding License a stallion must finish the 100-Day Testing with at least 80 points. Licensed stallions with the AHS require at least 90 points. To compute the results the scores of all criterias will be taken into consideration and multiplied with certain factors.

Theoretically each stallion starts with 100 points at the beginning of the testing. On each of its individual scores the stallion then gets plus or minus points, depending on the certain standard the testing is based on.

The computer program takes also into consideration the results of the previous testing prior to the current testing to compute a proper standard deviation.

The 100-Day Test Consists of a 100-day Training Period
with a Final Performance Testing:

1.Training Evaluation
Before the start of the final test, the training director of the testing will evaluate and score the stallions based on the 100-day training period in the following categories:



General ability to perform (health, hardiness, etc.)

Willingness to work

General jumping aptitude (free jumping, stadium jumping, cross-country jumping)

Basic gaits: walk, trot, canter


2. Performance Test
The final test is performed before a commission of independently judging experts.

The final test includes the following sections:

2.1. Jumping aptitude under saddle
Evaluation of jumping aptitude under saddle over a set course of obstacles (3'4" to 3'8") by two experts. The score for the stallion in this section is the total of the two individual scores divided by two.

2.2. Jumping aptitude free jumping
Two independently judging experts give two marks each, one for the stallions' technique and one for its capability in free jumping. The score for the stallion in this section is the total of the two times two scores divided by four.

2.3. Rideabilility test
The stallions will be ridden in succession by three experts whose evaluation of their rideability will be made independently according to the requirements of at least a training level dressage test for which appropriate scores will be given. The score for each stallion in this section is the total of its scores given by each expert divided by three.

2.4. Basic gaits
Evaluated by three independently judging experts. In each pace, the following will be ridden:
- 300 m walk
- 750 m trot
- 1000 m gallop

In addition all stallions will be shown under saddle in basic dressage.The score for each stallion in each individual pace is the total of the individual scores divided by three.

2.5. Cross-country test
All riders are given the same riding instructions and are admonished to check their time.
- Length of course: approx. 4000 m (13120 f)
- Number of fixed obstacles: 10
- Speed: 450 m/min

Time is taken merely for evaluation purposes so as to ensure that all stallions are stressed as equitably as possible.At least three independently judging experts evaluate the manner of galloping during the course and the stallion's jumping technique. The score for each stallion is the total of all individual scores divided by three or four.

2.6. Hunt gallop (1000 m or 3280 f)
Immediately following the cross country ride, the stallions are to be galloped at top speed over a distance of 1000 m. The time will be taken for statistical reasons only.

2.7. Vet Check
A veterinarian will check pulse and respiration rate as well as the recovery time after the hunting gallop. The veterinarian will determine, if a stallion has considerable deficiencies in his circulatory system and/or cardiac disfunction.


3. The Marks
The marks given by the training director and the experts in the individual categories of the test are given on the basis of 1 to 10, no decimal scores are permitted.

4. Weighting of the test sections
Equation of marks as given by the Training Leader and the Experts. See chart at right.

5. Final Index
The final index will be computed under consideration of the testing results of the two prior US testings. Four-year-old and older stallions will be given an age handicap of 5 point deduction.

Training Leader
Character 5%
Temperament 5%
Ability to work 5%
Willingness to work 5%
General Jumping aptitude 7.5%
Basic Gaits
– walk
– trot
– canter

Rideabilility 15%
Rideability 15%
Freejumping 7.5%
Jumping under saddle 10%
Basic Gaits
– walk
– trot
– canter

– canter
– jumping

Total Score 50%
Total Score 50%

6. Test Result
The test result for each individual stallion is final and - except for possible errors in computation - cannot be changed. Upon completion of the test, the results of each stallion will be given to the owner and published.

Champion and Reserve stallions from Previous Tests:

Year Location Leader/Breed Number
2004 Paxton Farm, OH Helmut Schrant 19 Stallions
Champion Galeno Tyme Oldenburg 155.87 points
Reserve Caleb Oldenburg 132.28 points
2002 Paxton Farm, OH Helmut Schrant 14 Stallions
Champion Di Vinci Oldenburg 120.58 points
Reserve Nassau KWPN 114.29 points
2000 Rancho Murieta, CA Rudy Leone 20 Stallions
Champion Contigo Holsteiner 140.95 points
Reserve Reno Holsteiner 133.17 points
1998 Paxton Farm, OH Helmut Schrant 20 Stallions
Champion Puerto D'Azur Belgian Warmblood 132.23 points
Reserve Amour Holsteiner 127.85 points
1996 Rancho Murieta, CA Rudy Leone 14 Stallions
Champion Amor Reto Hanoverian 133.75 points
Reserve Sandro's Song Oldenburg 129.14 points
1995 November Hill Farm, VA Gerd Zuther 9 Stallions
Champion Dante* Hanoverian 128.98 points
Reserve Merlin* Hanoverian 127.41 points
1994 Kentucky Horse Park, KY Dietrich Felgendreher 16 Stallions
Champion Flambou Oldenburg 126 .54 points
Reserve Jupiter Oldenburg 126.08 points
1993 November Hill Farm, VA Gerd Zuther 18 Stallions
Champion Idocus Dutch 131.12 points
Reserve Wallstreet Kid* Hanoverian 122.07 points
1992 Rancho Murieta, CA Rudy Leone 20 Stallions
Champion Le Champion Oldenburg 13 8.15 points
Reserve Gallarius Dutch 133.04 points
1991 November Hill Farm, VA Gerd Zuther 14 Stallions
Champion Rio Grande* Hanoverian 13 5.39 points
Reserve Bordeaux* Hanoverian 130.13 points
1990 Rancho Murieta, CA Rudy Leone 16 Stallions
Champion Tallison Hanoverian 133.72 points
Reserve Page Nine Thoroughbred 119.85 points
1989 November Hill Farm, VA Gerd Zuther 10 Stallions
Champion Derringer* Hanoverian 13 2.07 points
Reserve Walter Scott* Hanoverian 130.38 points
1988 Rancho Murieta, CA Eugen Wahler 18 Stallions
Champion Frohwind Oldenburg 137.54 points
Reserve Donavan* Hanoverian 136.16 points
1987 November Hill Farm, VA Gerd Zuther 16 Stallions
Champion Maronjo* Hanoverian 138. 06 points
Reserve Almaden Hanoverian 133.24 points
1986 Culpepper, VA Horst Karsten 12 Stallions
Champion Traumtänzer Oldenburg 138.31 points
Reserve Fuerst Gotthard* Oldenburg 132.24 points
*Stallions listed in red type have been or are active with AHS. Please be aware that the results of the different testing years are not comparable, because the deviation depends on the average quality of the respective group of stallions.