野球エンジニアの72万球 #BPStudy

by Shinichi Nakagawa

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໺ٿΤϯδχΞͷ72ສٿ τϥοΩϯάɾσʔλ͔ΒޠΔ໺ٿϊϯϑΟΫγϣϯ Shinichi Nakagawa@shinyorke

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໺ٿΤϯδχΞis୭?

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ʲ౴ʳϫΠͰ͢ • Shinichi Nakagawa(த઒৳Ұ) • ωΫετϕʔε CTO/໺ٿΤϯδχΞ • #ηΠόʔϝτϦΫε #Python #σʔλ෼ੳ • Baseball Play Study ։͔࢝࣌Βৗ࿈(2014ʙ) • Baseball Play Study͔Βϗϯτʹ໺ٿքʹདྷ·ͨ͠

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ʁʁʁʮ72ສٿ΋౤͛ͨΒݞග͕(ryʯ ※๻͸౤͛ͯͳ͍Ͱ͢w

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72ສٿ=MLBͷ1γʔζϯ౤ٿ਺ 2017೥ͷ࣮੷,ϨΪϡϥʔγʔζϯͷΈ. ϓϨʔΦϑΛؚΊΔͱ73ສٿͪΐͬͱʹͳΔ.

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Ͳ͜ʹσʔλ͋Δͷ? • MLBެࣜʮBaseballsavantʯͱ͍͏αΠτͰ  ୭Ͱ΋ೖखͰ͖Δ • https://baseballsavant.mlb.com/ statcast_search • τϥοΫϚϯɾStatcastͰه࿥ͨ͠  τϥοΩϯάɾσʔλ͕ݩʹͳ͍ͬͯΔ

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τϥοΫϚϯ=౤ٿɾଧٿͷܭଌػث ͘Θ͘͠͸ʮBaseball GeeksʯͷղઆΛͲ͏ͧʂ https://www.baseballgeeks.jp/?p=3551

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ࠓ೔ͷςʔϚʮଧٿʯ • 72ສٿ͔Βબग़ͨ͠ʮҹ৅తͳଧٿʯΛ঺հ • ೔ຊ΋ͱ͍,ϝδϟʔͷϨδΣϯυ͞Μ • ࠓ೥͔Βೋ౛ྲྀͰߦ͘ਓ…ͷಉ྅ • งғؾΛ௫ΜͰ͘ΕΔͱ͋Γ͕͍ͨͰ͢

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128,945 / 718,917(ٿ) ※શσʔλͷ໿18%Λ࢖༻(͓͓Αͦ100MB͘Β͍)

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ʲਤʳશଧٿσʔλͷ݁Ռ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓

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ʲਤʳશଧٿσʔλͷ݁Ռ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓ ௕ଧκʔϯ

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ʲਤʳશଧٿσʔλͷ݁Ռ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓ ௕ଧκʔϯ ୯ଧκʔϯ

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ʲਤʳશଧٿσʔλͷ݁Ռ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓ ௕ଧκʔϯ ୯ଧκʔϯ ಺໺खͷ͓࢓ࣄκʔϯ

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ʲਤʳશଧٿσʔλͷ݁Ռ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓ ௕ଧκʔϯ ୯ଧκʔϯ ্͕Γ͗͌͢ ಺໺खͷ͓࢓ࣄκʔϯ

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֮͑ͯ΄͍͜͠ͱ • ͍͍ײ͡ͷʮଧٿ଎౓ʯʮඈᠳ֯౓ʯͰඈͿଧٿ͸ϗʔϜϥϯɾ௕ଧʹͳΔՄೳੑ͕ߴ͍ • ໨҆ • 187km/h / 8~50౓ • 161km/h / 24~33౓ • 158km/h / 26~30౓ • ͜ΕΛʮόϨϧκʔϯʯͱ͍͍·͢ • ʁʁʁʮڈ೥ϑϥΠϘʔϧɾϨϘϦϡʔγϣϯ͕͋ͬͨ͡Όͳ͍ɺͦΕ(ryʯ  ˠਖ਼ղʂͦ͏͍͏͜ͱͰ͢ • ʲࢀߟจݙʳ https://www.baseballgeeks.jp/?p=1342 ※Baseball GeeksΑΓҾ༻

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ೋਓͷଧऀʹ͍ͭͯ • ೔ຊ΋ͱ͍,ϝδϟʔͷϨδΣϯυ͞Μ • ࠓ೥͔Βೋ౛ྲྀͰߦ͘ਓ…ͷಉ྅ • ͜ͷೋਓͷଧٿ܏޲ΛݟͯΈΑ͏

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Ұਓ໨ʮIchiro Suzukiʯ ϚϦφʔζ෮ؼ͓ΊͰͱ͏͍͟͝·͢ʂ ը૾ɿ https://commons.wikimedia.org/wiki/File:Ichiro_Suzuki_2010.jpg

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ʲਤʳIchiro Suzukiબखͷଧٿ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓

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ʲਤʳIchiro Suzukiબखͷଧٿ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓ ͜ͷล͕ ௕ଧκʔϯ

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ʲਤʳIchiro Suzukiબखͷଧٿ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓ ͜ͷล͕ ௕ଧκʔϯ όϨϧ ൃݟʂ

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ΠνϩʔબखͷόϨϧ஄ • 2017/8/22 ϑΟϦʔζઓ(ఢ஍Ͱͷࢼ߹) • ୈ3߸ιϩ,ઌൃͷϊϥ͔ΒҰൃ • 160.48 km/h, 28౓ • શ3ຊͷΞʔνத,όϨϧೖΓ͸͜ͷ1ຊͷΈ  …Ͱ͚͢Ͳ,͜Ε͕40୅ͱ͔ා͍(ଚܟͷ؟ࠩ͠)

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ೋਓ໨ʮMike Troutʯ େ୩ᠳฏ(ΤϯδΣϧε)ͷಉ྅͔ͭεʔύʔελʔ ը૾ɿ https://commons.wikimedia.org/wiki/File:Los_Angeles_Angels_center_ﬁelder_Mike_Trout_(27)_(5972457428).jpg

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Mike Trout #ͱ͸ ※೦ͷҝ • ϝδϟʔΛ୅ද͢ΔελʔͷҰਓ • ϩαϯθϧεɾΤϯθϧεͷ֎໺ख(ηϯλʔ) • ӈ౤͛ӈଧͪ,26ࡀ,ϝδϟʔ8೥໨ • ૸߈कࡾഥࢠ͕ʮຊ౰ʹʯἧ໊ͬͨબख • ௨ࢉOPS .976ɹ˞Ϊʔλ(ιϑτόϯΫ)͸.946

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ʲਤʳMike Troutબखͷଧٿ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓

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ʲਤʳMike Troutબखͷଧٿ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓ ͜ͷล͕௕ଧκʔϯ ˠϗʔϜϥϯଟ͗͌͢

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ʲਤʳMike Troutબखͷଧٿ(2017) X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓ ͜ͷล͕௕ଧκʔϯ ˠϗʔϜϥϯଟ͗͌͢ όϨϧ͚ͩͲ Ξ΢τͩͱʁ

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Ξ΢τʹͳͬͨଧٿͷৄࡉ X(ԣ)ɿଧٿ଎౓, Y(ॎ)ɿଧٿ֯౓

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͜Ε͸͍͢͝ϓϨʔͳͷͰ͸ʁ • ͱࢥ͍,ࢼ߹݁ՌΛνΣοΫ • ه࿥ɿηϯλʔϑϥΠ • ϑΝΠϯϓϨʔͱ͍͏ه࿥΋ͳ͘ • ී௨ͷଧٿͱͯ͠ͱΒΕ͍ͯͨ • ϝονϟྑ͍͋ͨΓͷਅਖ਼໘ͩͬͨʁʁʁ  ;ʔΜ(๮ಡΈ)

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·ͱΊ • ϝδϟʔϦʔά͸ଧٿɾ౤ٿͷσʔλ͕ϑΝϯͰ΋࢖͑Δ • ଧٿ଎ͱ֯౓ʹண໨͢Δ͚ͩͰ΋৭ʑͳࢹ఺͕Ͱ͖Δ • Πνϩʔબख͸·ͩ·͔ͩͬͱ͹ͤΔ  (ελΠϧม͑ͯ͘Εͳ͍͔ͳ͋ʁ) • େ୩ᠳฏ͕౤͛Δͱ͖͸τϥ΢τʹ΋஫໨ͯ͠Ͷ • ࢸͬͯී௨ͷϑϥΠ΋࣮͸ී௨͡Όͳ͍Մೳੑ͕

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τϥοΩϯάɾσʔλ ָ͘͠ͳ͖͔ͬͯͨͳʁ

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Baseball GeeksͰ΋ͬͱָ͘͠! • τϥοΩϯάɾσʔλΛ׆༻ͨ͠໺ٿͷ৽͍͠ݟํɾࢹ఺Λ঺հͯ͠·͢ • σʔλɾεϙʔπՊֶͰ໌Β͔ʹͳͬͨ͜ͱΛʮΘ͔Γ΍͘͢ʯ఻͑Δ • ΈΜͳಡΜͰͶ&ϒΫϚ΋ΑΖ͘͠ʂ https://www.baseballgeeks.jp/

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ϓϨΠϘʔϧʂ ࠓ೥΋໺ٿͰྑ͍Ұ೥Λʂ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠⽁ Shinichi Nakagawa(Twitter/Facebook/etc… @shinyorke)