Akiyama Kazuhiko (秋山 和彦) is a SASUKE All-Star who became the first man to achieve Kanzenseiha, doing so in SASUKE 4. He has not been able to repeat his success however, due in part to an eye condition known as degenerative retinosis that has plagued him for years. His eye condition also forced him to retire from crab trapping, and he is now a sports massage therapist. He has also been a soldier in Japan's Self Defence Force, and a Greco-Roman Wrestler. His victory in SASUKE 4 was his only trip to the Final Stage. Of the 20 tournaments he has entered, he has cleared the First Stage six times, the Second Stage three times, the Third and Final Stages once.
Akiyama was given #100 in SASUKE 2, due to setting a record in Kinniku Banzuke's Quick Muscle event, however he was unable to clear the Second Stage because he took too much time on the Spider Walk and he hesitated on the Goren Hammer, and as a result he timed out on the Wall Lifting. He made the same mistakes in SASUKE 3 and timed out at the exact same spot.
Not being seen as a serious threat to achieve kanzenseiha, he was given #86 in the fourth tournament. He was able to clear the Goren Hammer fairly quickly and finished off a second stage clear with a backflip. In the redesigned Third Stage, Akiyama fell just short of the platform at the end of the Pipe Slider, but was able to hold himself out of the water and climb up to the top. He was the only person to reach the Final Stage, where he cleared the 15 meter rope climb in just 24 seconds, becoming the first person in SASUKE history to achieve kanzenseiha.
Akiyama took SASUKE 5 off and returned in the fall of 2000 in SASUKE 6. However, he mis-hit the trampoline of the Jump Hang and failed. He went out on the same obstacle in the next two competitions, though he touched the net both times, he was unable to grip on and fell into the water. SASUKE 9 saw one of the most shocking defeats ever in the history of the show. He was taken out on the very first obstacle, the Godantobi, after his foot touched the water after clearing the obstacle. In the 10th anniversary competition he redeemed himself on the past failures only to be stopped by the Soritatsu Kabe. In SASUKE 11 he finally passed the First Stage with a mere 00.03 seconds left. He made all the way to Stage Three, before failing the Body Prop. In the next tournament, he continued his good form by making to the Third Stage once more. There, he made it to the Pipe Slider, but fell short of the platform and missed the chance of trying to get a second kanzenseiha. In SASUKE 13, he was expected to do well once again but he surprisingly fell on the new Nejireta Kabe (probably the darkness penalized Akiyama). In SASUKE 14, now competing in the daytime, he passed the obstacle but failed the Soritatsu Kabe, and then he met the same fate in the next competition. In SASUKE 16, he was able to clear the First Stage only to be one of the many victims of the deadly Metal Spin. SASUKE 17 proved to be a disappointment, as he fell on the new Circle Slider.
After Nagano Makoto's kanzenseiha, he vowed to retire, skipping the next two competitions, 19 and 20, before making a return in the 20th anniversary tournament, in which he was the first competitor to run that day as he wore number #1901 (equivalent to #1). Here, he struggled on the Pole Maze and he lost his grip on the rope of the Half Pipe Attack when time was about to expire. He returned in SASUKE 22 but failed on the same obstacle, this time slipping on the half-pipe immediately after starting the run. He again returned in SASUKE 24, in which he took his revenge on the Half Pipe Attack, only to be defeated one more time by the Soritatsu Kabe, and this was the same result of the next competition. He made his final appearance in SASUKE 28, failing the Spin Bridge.
He was invited to compete in the 30th anniversary tournament, but he declined the offer. He was present in SASUKE 32 on the occasion of Nagano Makoto's last run, and he also took part on a side event in which competitors faced four First Stage obstacles for real, and another four on a Super Mario Bros. game. He attempted it with seven other competitors, including Yamada Katsumi failed at the transition from the Quad Steps to the Rolling Hill.
- Akiyama's younger brother, Kimihiro, competed with him in SASUKE 11 and SASUKE 17.
- Akiyama also competed in VIKING, failing the Swing Mast, the next-to-last obstacle in the First Stage.
- He competed on Kinniku Banzuke's Quick Muscle event, setting the record by doing 307 push-ups in 3 minutes. This is why he was granted #100 in his first SASUKE competition. He is the only competitor to wear #100 in his first competition in a tournament except for SASUKE 1 and 18, the former being the first ever tournament and the latter due to a lottery.
- He is the only competitor to wear both #1 (SASUKE 20) and #100 (SASUKE 2, 6, and 9).
- He is also the only SASUKE All-Star to never failed a spider walking obstacle and only one to never attempt the Flying Chute or the Rope Ladder.
- He and Shiratori Bunpei are the only All-Stars to have never failed the Cliffhanger obstacle.
- Akiyama is the only All-Star with a "prop" entrance, always appearing at the starting line with a string of crabs.
- He is the only competitor to wear the last five numbers (#96, #97,#98, #99, and #100). Yamada Katsumi and Nagano Makoto have worn all except #97.
- He is the only All-Star to never fail the Jumping Spider.
- He is the only All-Star to fail the Nejireta Kabe.
- He and Yamada Katsumi are the only All-Stars ever attempt the first version of the Cliffhanger. Plus, he is only one of who cleared this version.
- He and Yamada Katsumi are also the only All-Stars to never attempt the Arm Rings or the Curtain Cling.
- He is the only person to achieve Kanzenseiha with a number not in the 90s.
- He is the only person to achieve Kanzenseiha to never have a run cut from the Japanese broadcast. (Nagano,SASUKE 7) (Yuuji, SASUKE 21) (Yūsuke, SASUKE 21 and SASUKE 22)
- He is only Grand Champion to wear number 100 in the first tournament he competed (SASUKE 2).
- He is the only Grand Champion to only make it to the Final Stage once.
- He is the only one with 100% clear rate in the Final Stage.
- He is the only All-Star to fail the Godantobi.
- He and Yamamoto Shingo are the only All-Stars to fail the Half-Pipe Attack.
- He and Yamamoto Shingo are the only All-Stars to never clear the Spin Bridge.
- He is the only Grand Champion to never attempt any version of the Salmon Ladder.
- He is the only Grand Champion to never clear the Metal Spin.
- He is the only Grand Champion to clear the First Stage in his debut.
- He and Shiratori Bunpei are the only All-Stars not to have a protege to train for any SASUKE/Ninja Warrior competition.
|2||100||Failed Wall Lifting (Second Stage)||Time Out. Second Wall.|
|3||99||Failed Wall Lifting (Second Stage)||Time Out. First Wall.|
|4||86||Kanzenseiha||6.0 seconds left.|
|6||100||Failed Jump Hang (First Stage)||Mis-hit the trampoline.|
|7||99||Failed Jump Hang (First Stage)|
|8||99||Failed Jump Hang (First Stage)|
|9||100||Failed Godantobi (First Stage)||Course Out. The tip of his foot touched the water.|
|10||981||Failed Soritatsu Kabe (First Stage)||Time Out.|
|11||99||Failed Body Prop (Third Stage)|
|12||97||Failed Pipe Slider (Third Stage)||Failed Jump.|
|13||91||Failed Nejireta Kabe (First Stage)||Misjudged distance to the rope.|
|14||71||Failed Soritatsu Kabe (First Stage)||Time Out.|
|15||81||Failed Soritatsu Kabe (First Stage)||Time Out.|
|16||71||Failed Metal Spin (Second Stage)|
|17||71||Failed Circle Slider (First Stage)||Mis-hit springboard.|
|20||1901||Failed Half Pipe Attack (First Stage)||Lost his grip on the rope.|
|22||20||Failed Half Pipe Attack (First Stage)||He slipped at the beginning when he ran up the half-pipe and dove into the water.|
|24||62||Failed Soritatsu Kabe (First Stage)||Time Out.|
|25||98||Failed Soritatsu Kabe (First Stage)||Time Out.|
|28||96||Failed Spin Bridge (First Stage)|
|2||50||Failed Swing Mast (First Stage)|