| John Size |
|
HK |
| ジョン・サイズ | 男 | 調教師 |
| 生没年 1954.07.10 (AUS) - 調教師 - (2022) |
| ［中］ 蔡約翰 |
| 厩舎 (AUS) (HK) (2001-) |
| 調教助手 Lor Fu Chuen |
| 通算勝利数（香） 1300+ 首位調教師（香） (2001/02-2003/04,2005/06,2007/08,2009/10,2011/12) (7) 競馬の殿堂（豪） (2018) |
| 主な管理馬 Beat The Clock / Contentment / D B Pin / Electronic Unicorn / Glorious Days / Hot King Prawn / Ivictory / Mr Stunning / River Dancer / Sight Winner / Super Kid / Waikuku |
| ＜調教師＞ | ||||
| 2 0 2 2 | ||||
| 01.23 | HK | Stewards' Cup (G1) | Waikuku | 7勝目 |
| 2 0 2 1 | ||||
| 02.21 | HK | Queen's Silver Jubilee Cup (G1) | Waikuku | 3勝目 |
| 01.24 | HK | Centenary Sprint Cup (G1) | Hot King Prawn | 5勝目、4連覇 |
| 2 0 2 0 | ||||
| 01.19 | HK | Centenary Sprint Cup (G1) | Beat The Clock | 4勝目、3連覇 |
| 01.19 | HK | Stewards' Cup (G1) | Waikuku | 6勝目 |
| 2 0 1 9 | ||||
| 12.08 | HK | Hong Kong Sprint (G1) | Beat The Clock | 2勝目、1-2着 |
| 04.28 | HK | Chairman's Sprint Prize (G1) | Beat The Clock | 3勝目、2連覇 |
| 01.20 | HK | Centenary Sprint Cup (G1) | Beat The Clock | 3勝目、2連覇 |
| 2 0 1 8 | ||||
| 04.29 | HK | Chairman's Sprint Prize (G1) | Ivictory | 2勝目、1-3着 |
| 01.28 | HK | Centenary Sprint Cup (G1) | D B Pin | 2勝目、1-2着 |
| 2 0 1 7 | ||||
| 12.10 | HK | Hong Kong Sprint (G1) | Mr Stunning | 1勝目、1-2着 |
| 05.07 | HK | Champions Mile (G1) | Contentment | 3勝目 |
| 2 0 1 6 | ||||
| 02.28 | HK | Queen's Silver Jubilee Cup (G1) | Contentment | 2勝目 |
| 2 0 1 3 | ||||
| 12.08 | HK | Hong Kong Mile (G1) | Glorious Days | 1勝目 |
| 2 0 0 9 | ||||
| 04.26 | HK | Champions Mile (G1) | Sight Winner | 2勝目 |
| 2 0 0 4 | ||||
| 05.30 | HK | Hong Kong Champions & Chater Cup | Super Kid | 1勝目、1-2着 |
| 04.15 | HK | Queen Elizabeth II Cup (G1) | River Dancer | 1勝目 |
| 2 0 0 3 | ||||
| 04.27 | HK | Champions Mile | Electronic Unicorn | 1勝目 |
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