If you can grab the ring on a basketball court with one hand, you should be able to clear 1.90m to 2m at least in the high jump.
When I was 15 years old, I was playing basketball and I had developed so much explosive power with playing basketball, rebounding, and doing plyometrics training (as well as going through the final phases of my growth spurt), and I was able to get half of my arm over the rim (to my elbow).
The official height that I cleared in the high jump that year was 2.04m. However, there were several accounts from people saying that my jumping height exceeded 2.10m. And possibly upwards of 2.20m.
My younger brother did a jumps program and was able to dunk the basketball with two-hands with ease just from a stationary double-footed position. He was 16 years old at the time and went on to jump 2.14m in the high jump that year.
He had been training for high jump for years, so his technique was close to perfect. However, his body was conditioned from playing basketball at a state-level in Australia.
In my opinion, you should be able to clear 1.80-1.85m (6 feet) in the high jump without any real training if you can dunk a basketball or at least touch the ring.
With training, you should be able to get another 10-20cm in height. So 1.90-2.00m is achievable.
Bonus
If you’re interested in jumping higher, you can purchase my high jump training program that I used to jump over 2m. It’s available for $4.99.
If you would like to learn more about the high jump, you can purchase our high jump drills ebook for $9.99.
We also offer a complete bundle that will help you improve your vertical jump, diet & nutrition, mental cues, and high jump training. Individually, this would cost $59.94, but is available for $30 (Save $29.94)
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