Edit: corrected title
23 August 1943
SOUTH CHINA SEA
SS Sailfish launches 2 torpedoes and misses at 76,77 near Bataan/Corregidor
xAKL Hachirogata Maru
xAK Okuni Maru
xAK Fukko Maru
xAKL Yagi Maru
xAKL Miyako Maru
xAKL Tonegawa Maru
xAKL Anbo Maru
PB Kyo Maru#13
EAST CHINA SEA
SS Tunny launches 2 torpedoes and misses at 99,57 near Fukue-jima
DD Yumagi
DD Akigumo
SS Herring launches 2 torpedoes and misses at 100,56 near Saishu To
DD Kisaragi
DD kikuzuki
HOME ISLANDS
SS O19 launches 2 torpedoes and misses at 111,65 near Aogashima
xAK Kinryu Maru
xAK Hiyama Maru
xAK Kosin Maru#2
PB Akitsui Maru
CHINA
Japanese morning air attack on Sining - 2 airbase hits, 3 airbase supply hits and 21 runway hits.
Japanese morning air attack on 89,40 - 4 port hits, 2 port fuel hits and 3 port supply hits
MARIANAS ISLANDS
Allied morning air attack on TF at 109,94 near Saipan
Weather in Hex: Heavy rain
Japanese aircraft
A6M2 Zero-Reisen x 14
A6M2-N Rufe-Guisen x 26
A6M3a Zero-Reisen x 23
A6M5 Zero-Reisen x 182
A6M5a Zero-Reisen x 120
N1K1J Gerorge-Shiden x 7
Ki-43-IIb Oscar x 7
Ki-44-IIa Tojo x 7
Ki-84a Rrank-Hyate x 8
Allied aircraft
Martlet IV x 11
F4F-4 Wildcat x 36
FM-1 Wildcat x 18
F6F-3 Hellcat x 104
SB2C-1C Helldiver x 76
SBD-5 Dauntless x 52
TBF-1 Avenger x 227
Japanese aircraft losses
A6M2 Zero-Reisen: 1 destroyed
A6M2-N Rufe-Guisen: 3 destroyed
A6M3a Zero-Reisen: 1 destroyed
A6M5 Zero-Reisen: 3 destroyed
A6M5a Zero-Reisen: 2 destroyed
Ki-44-IIa Tojo: 1 destroyed
Allied aircraft losses
Martlet IV: 2 destroyed
F4F-4 Wildcat: 2 destroyed
FM-1 Wildcat: 2 destroyed
F6F-3 Hellcat: 6 destoryed
SB2C-1C Helldiver: 10 destroyed, 14 damaged
SB2C-1C Helldiver: 1 destroyed by flak
SBD-5 Dauntless: 6 destroyed, 3 damaged
TBF-1 Avenger: 25 destroyed, 19 damaged
TBF-1 Avenger: 1 destroyed by flak
Japanese Ships
CV Hiyo, Torpedo hits 1
CVE Taiyo, Torpedo hits 2, heavy fires, heavy damage
CV Junyo
CV Shokaku, Bomb hits 5, on fire, heavy damage
CV Taiho, Bomb hits 8, heavy fires
DD Sagiri
CV Hiryu, Bomb hits 1
CV Akagi, Bomb hits 2, on fire
CL Yubari
CV Soryu
CL Oyodo
CVE Hosho, Bomb hits 2, heavy fires
CVE Chuyo
CVL Ryuho
CVE Unyo, Bomb hits, heavy fires
DD Minazuki
CLAA Tatsuta
DD Hatsukaze
CA kikuma
DD Akatsuki
Fuel sotrage explosion on CVE Unyo
Heavy smoke from fires obscuring CVE Unyo
Fuel storage explosion on CVE Taiyo
Heavy smoke from fires obscuring CV Shokaku
Heavy smoke from fires obscuring a Shokaku class CV
Ammo storage explosionon CVE Hosho
Allied afternoon air attack on TF at 108,93 near Saipan
Allied aircraft
Martlet IV x 7
F4F-4 Wildcat x 29
FM-1 Wildcat x 14
F6F-3 Hellcat x 91
SBD-5 Dauntless x 21
TBF-1 Avenger x 11
Allied aircraft losses
SBD-5 Dauntless: 4 damaged
SBD-5 Dauntless: 1 destroyed by flak
TBF-1 Avenger: 1 damaged
Japanese Ships
DD Nowaki
DD Oshio
DD Tanikaze, Bomb hits 2, heavy fires, heavy damage
Carrier support unable to supply air cover.
Heavy smoke from fires obscuring DD Tanikaze
SOUTH CHINA SEA
SS Grayling is located by escort at 84,68 near Itbayat Island
EW-20
EW-8
WO Kudo, O of 202 KuS01 Det B is credited with kill number 5 - attains ace status!!
CPO Kikuchi, T of 251 KuS-1 Det B is credited with kill number 10
PO1 Diikawa, D of Kaga-1 is credited with kill number 5 - attains ace status!!
PO1 Matsumura, H of Shokaku-1 is credited with kill number 5 - attains ace status!!
PO2 Araki, R of Hosho-1 is credited with kill number 5 - attains ace status!!
PO2 Fujimatsu, W of 202 KuS-1 is credited with kill number 5 - attains ace status!!
PO2 Kawamura, L of Hosho-1 is credited with kill number 5 - attains ace status!!
PO2 Kamihira, N of Hosho-1 is credited with kill number 5 - attains ace status!!
PO1 Hori, T of 253 KuS-1 is credited with kill number 5 - attains ace status!!
PO2 Inano, G of Hiryu-1 is credited with kill number 5 - attains ace status!!
PO2 Shoji, S of 202 KuS-1 is credited with kill number 5 - attains ace status!!
PO1 Magara, K of Shokaku-1 is credited with kill number 5 - attains ace status!!
PO2 Hirano, G of Hiryu-1 is credited with kill number 5 - attains ace status!!
PO2 Mikami, H of Taiho-1 is credited with kill number 5 - attains ace status!!
PO1 Kojima, P of 6th KuS-1 is credited with kill number 5 - attains ace status!!
G4M1 Betty-Rikko from 753 KuK-1 has spotted AM Rail at 109,95 - AM Rail is reported hit
DD Tanikaze sinks at sea
SC CHa-42 arrives at Yokohama
xAP Lancashire is reported to have been sunk near Moulmein on 9 October 1942
CM Tokiwa remains afire at Tinian - 67 57(51) 22(07) 34
Meanwhile in Yokohama naval reinforcements have been ordered to proceed.
Battle Group Kiraoka casts off comprised of :
BB Yamato
BB Fuso
BB Yamashiro
CA Chikuma
CL Nagara
CL Isuzu
CL Abukuma
CL Kiso
DD Yugure
DD Namikaze
E Wakamiya
West of the Marianas a convoy containing 90th JAAF AF Bn is ordered to wait. I don't want this lot near the battlefield until I know what if any islands I can hold onto.
Damage to my carriers at end of day is:

Kido Butai, although powerful, was a raiding force, and this is exactly how the Japanese understood its usage. 'Shattered Sword'