Ayumu Hirano won the gold medal at the Beijing Olympics, the Snowboard Men's Halfpipe on the 11th.

It was the first time for a Japanese player to win a gold medal on an Olympic snowboard.


On the other hand ...


"Front side triple cork 1440"


"Switch back side 1260"


Various "techniques" heard in the live commentary and commentary also attracted attention.


And the scoring method.

Despite having succeeded in a big move in the second run, Hirano's score did not increase and it became a hot topic on the net.


Reporter Tatsu Kobayashi, who is in charge of snowboarding in the sports news department, will explain the terms and techniques related to snowboarding, as well as the scoring method.

-How to score halfpipes

(Reporter Kobayashi)


Six judges will evaluate the athlete's gliding on a scale of 100 points each.


Athletes' scores will be the average of the remaining four players, excluding the highest and lowest.


"Air height", "abundance of techniques", "difficulty", "creativity", "landing, gliding composition", etc. are comprehensively judged.

For example, let's say six judges scored like this.


Judge A: "95" 


Judge B: "90"


Judge C: "90"


Judge D: "90"


Judge E: "90"


Judge F: "85"



In this case, the highest 95 points (Judge A) and the lowest The evaluation of 85 points (Judge F) is not reflected, and the score is the average of the four judges B, C, D, E, that is, "90 points".

-Is there a scoring standard?

There is no particular standard.


Having a high air level or succeeding in a difficult technique does not necessarily mean that you will get a high score.


To the last, each judge is supposed to judge by looking at each player's gliding.

-Please tell me the name of the technique

Halfpipe has various techniques such as "Triple Cork" and "Double Cork", as well as "1440 (Fourteen Forty)" and "1260 (Twelve Sixty)".

There are various types of techniques



depending on the vertical and horizontal rotation, the direction of the board, the direction of rotation, and the place where the board is grabbed

. It is expressed as [vertical rotation] + [horizontal rotation].




For example, if you look at the big move "Front Side Triple Cork 1440" that Hirano decided for the first time in the history of the Olympic



Games


... (Corkscrew) "is a rotation technique in which the axis is diagonally combined vertically and horizontally.)


▽ 1440 (4 rotations horizontally) (1 rotation" 360 "degree x 4 =" 1440 "degree)



Step forward and axis in the air It is a technique of rotating 3 times diagonally vertically and 4 times horizontally.


Hirano had previously talked about this "triple cork" as "a paper-only technique that can be fatal if the railroad crossing or rotation speed is lacking."


The higher the number of revolutions, the higher the height required, the greater the risk of failure and the greater the impact of landing.

On the other hand, the technique performed by Scotty James, who won the silver medal, is "Switchbackside 1260".



▽ Switch (stance is reversed)


▽ Back side (from back side)


▽ 1260 (3 and a half rotations sideways)



Because the direction and rotation of the plate are difficult, it may be highly evaluated even if the rotation speed is low.

-Why did Ayumu Hirano's second score not increase?

(Reporter Kobayashi)


Hirano decided "Triple Cork 1440" at the beginning of the second run and included the technique that was talked about as "the most difficult in human history", and for the first time, he slipped almost without mistakes until the end. I did.


However, the score did not increase and the score was "91.75".


At this point, it was 0.75 below the top Scotty James player's "92.5".

<Ayumu Hirano's second score "91.75"> (X mark is not adopted)


▽ Judge


Sweden: "96" X


France: "92"


Canada: "90"


USA: "89" X


Japan: "95"


Switzerland : "90"

<Scotty James's second score "92.50"> (X mark is not adopted)


Sweden: "92"


France: "93"


Canada: "94" X


America: "91" X


Japan: "93"


Switzerland: "92"



At that time, booing of overseas team staff and related parties was occurring locally.


Shinichi Watanabe, who served as a commentator in, inferred this.



[Commentary Shinichi Watanabe]


"I thought it would be nice to get more points for Hirano. The judge should have a margin to say," I'll still be able to get points, "after knowing that Hirano has a new skill. In that sense, I think it was strict. I got the impression that it was. ”



As Mr. Watanabe speculated, if the judge knew about Hirano's great skill, Hirano's unfathomable ability was this time. It may be said that it created the situation.



As Hirano says he was "angry" about this second decision, the halfpipe does not provide a scoring standard with objective numbers.


Hirano is questioning how such scoring should be.



[Ayumu Hirano]


"Snowboarding is attractive for freedom, but I think we should prepare something that can measure height and skill, and I think we are in an era of creating something like a system for measuring as a competition. think"

-How was "Triple Cork" born?

(Reporter Kobayashi)


The challenge was "I want to go my own way."


In the halfpipe world, the difficulty of the technique has increased in recent years.


Not only did the number of revolutions of the air increase, but some players, such as James, who won the silver medal, tried to increase the score with difficult techniques such as "switch backside".


Meanwhile, Hirano stuck to the original technique, saying, "If everyone does the switchback side, I want to compete in other places."

After the Tokyo Olympics, I started practicing triple cork in earnest, saying, "I want to overwhelm myself with a technique that does not use a switch," and I learned this great technique in just half a year.

-"Halfpipe" seems to be popular

(Reporter Kobayashi)


Skateboarding at the Tokyo Olympics and snowboarding at the Beijing Games will increase the interest in so-called "horizontal riding", and some children may want to be like Hirano. ..



On the other hand, as Hirano said, in order to become a mature competition in the future, it may be necessary to show a certain scoring standard using numbers.