The men’s season begins: how can Hokkaido YS challenge Tokyo GB? Winning paths through the numbers
On October 17 and 18 at Ariake Coliseum, SV.LEAGUE newcomers Hokkaido Yellow Stars begin their campaign against Tokyo Great Bears. How well can the weapons they developed in V.LEAGUE work against SV opposition? We adjust for the difference in competition and explore each team’s path to victory through the numbers.
We analysed attack success rates of players who have competed in both SV and V, excluding setters, to derive an index of the difference between the competitions. For this comparison, we use 77.2% as the conversion factor for last season’s V.LEAGUE figures. Last season’s SV figures, including those of Chang Yu-Sheng, are retained without adjustment.
This is a hypothetical comparison that also applies the same factor to blocks, service aces and reception success. The 77.2% factor was derived from attack success rates; extending it to the other measures is an assumption for this exercise.
Tokyo’s edge on the wings, Chang’s 48.1% as Hokkaido’s foundation
Weighting the figures of three key wing attackers by their attack attempts last season gives Tokyo an attack success rate of 46.6%. Hokkaido’s adjusted figure is 43.2%.
Kurek recorded 46.1%, Vicentin 48.9% and Rikuto Goto 44.8%. All three exceeded 44%, giving Tokyo several scoring options on the wings.
For Hokkaido, Chang’s 48.1% is a substantial foundation. He made 534 kills from 1,110 attempts in SV last season. Kota Yamada’s converted figure is 40.7%, while Kvalen’s is 38.5%. The numbers point to a key challenge: how effectively can Hokkaido’s other wing attackers turn opportunities into points?
The gap is 3.4 percentage points. Hokkaido will want serving and blocking points to offset that difference in attack.
Hokkaido’s winning path: Yamada’s serve and Nakaya’s block
Yamada recorded 35 service aces from 364 serves last season. Applying the conversion to his 9.6% ace rate gives 7.4%, close to Vicentin’s 7.7%. Serving is one area in which Hokkaido can compete.
Service ace rate, SV-equivalent Vicentin / Tokyo GB: 7.7% Kota Yamada / Hokkaido YS: 7.4% Masahiro Yanagida / Tokyo GB: 6.3% Chang Yu-Sheng / Hokkaido YS: 6.0% Jin Tsuzuki / Hokkaido YS: 5.2%
At the net, Kaoru Nakaya recorded 76 blocks across 86 sets last season. Even after conversion, his 0.88 blocks per set becomes 0.68. Kurek recorded 0.45 and Go Murayama 0.44. Under this conversion, Nakaya’s blocking remains a Hokkaido strength.
A Hokkaido win could take shape through Yamada disrupting reception with his serve and Nakaya turning pressure into consecutive points through blocks. When receiving the opposition’s serve, Hokkaido can build its scoring around Chang’s 48.1% attack success rate.
There are other options too. Tsuzuki’s converted attack success rate is 44.5%, and Namiki Shima’s is 51.0%. Even if Hokkaido’s wing attack figure falls short of Tokyo’s, combining serving, blocking and middle attack offers a route to taking sets.
Tokyo’s winning path: converting through both the wings and the middle
Tokyo’s strength is that its middle attackers also have high success rates.
Attack success rate, SV-equivalent Kozamernik / Tokyo GB: 59.2% Riku Ito / Tokyo GB: 52.9% Go Murayama / Tokyo GB: 52.3% Namiki Shima / Hokkaido YS: 51.0% Kaoru Nakaya / Hokkaido YS: 47.0%
A Tokyo win would involve retaining attacking options against Hokkaido’s serve and making use of those middle attack rates. Its three wing attackers combine for 46.6%, and several middle attackers exceed 50%. Good reception and points from both areas would allow Tokyo to turn its numerical edge into victory.
Reception is nevertheless an important test for Tokyo. Last season’s reception success rates were 48.2% for Vicentin, 49.0% for Goto and 50.5% for Yanagida. Taichiro Koga recorded 58.3%. Against Yamada’s converted 7.4% ace rate, receiving Hokkaido’s serve could be a decisive part of the match.
Hokkaido’s principal receivers have converted figures of 55.8% for Yamada, 52.3% for Kvalen and 61.5% for Shun Niiyama. This exercise does not identify reception as a one-sided weakness for Hokkaido. Tokyo will want Vicentin and Yanagida’s serves to reduce Hokkaido’s attacking options.
On-court 3+1: overseas middle attackers could change the comparison
The on-court 3+1 rule is another factor. If Tokyo fields Kurek, Vicentin and Kozamernik together, it can deploy players with last season’s attack success rates of 46.1%, 48.9% and 59.2% across the wings and the middle.
Chang occupies the special Asian player slot for Hokkaido. Fielding him alongside Kvalen and Fasteland would therefore use only two of the general overseas-player slots.
Fasteland is not included in this numerical comparison because comparable data from last season is unavailable here. If Hokkaido can score through its overseas middle attacker, that adds another option supporting Chang and the outside hitters. This is an element the three-player wing comparison cannot capture.
Tokyo can exploit the attack gap; Hokkaido can offset it through other points
Tokyo’s winning path is to preserve attacking options through reception and make use of its success rates on the wings and in the middle. Hokkaido’s path is to build on Chang’s attack while creating consecutive points through Yamada’s serve and Nakaya’s block.
Can Tokyo convert its attacking numbers into a steady flow of points? Can Hokkaido offset the gap with serving and blocking? And how many points can adding Fasteland bring to Hokkaido’s middle attack?
Hokkaido has weapons that the newcomer label alone does not reveal. How it combines them against SV opposition will make the opener a revealing first test for the northern newcomers.