Tournament Information

• Tournament: International Series Japan presented by Moutai
• Date: 8-11 May, 2025
• Venue: Caledonian Golf Club, Chiba
• Par/Yards: 71 / 7,116 yards
• Purse: US$2 million (First place: US$360,000)
• Asian Tour leg: Sixth
• The International Series leg: Third
• Edition of tournament: First
• Total number of players: 156
• Format: Stroke play tournament over four rounds of 18 holes with cut after 36 holes to leading 65 professionals plus ties.
• Social media hashtags: #TimeToRise #ThisISEverything

The International Series Japan presented by Moutai trophy. Picture by Graham Uden/Asian Tour.

Field Breakdown

• Order of Merit winners: John Catlin (2024), Sihwan Kim (2022), Jazz Janewattananond (2019), Scott Hend (2016), Jeev Milkha Singh (2006, 2008)
• Nationalities: 29
• Top contenders: Richard T. Lee (CAN), John Catlin (USA), Kazuki Higa (JPN), Lucas Herbert (AUS), Doyeob Mun (KOR), Jazz Janewattananond (THA)
• Highest ranked player on OWGR: John Catlin (USA) #143
• Highest ranked player on 2025 Asian Tour Order of Merit: Doyeob Mun (KOR) #3
• Highest ranked player on the 2025 International Series Rankings: Richard T. Lee (CAN) #7
• Number of amateurs: 1
• Number of Japanese players in the field: 32

Jazz Janewattananond. Picture by Graham Uden/Asian Tour.

Tournament Notes

• Richard T. Lee of Canada won the Woori Bank Finance Championship on the Korean PGA Tour two weeks ago in a three-way play-off, and reaching a career high of 175^th on the OWGR after that win. He had a great season on the Asian Tour last year, finishing third on the Order of Merit thanks to a win at the BNI Indonesian Masters, a runner up at the International Series Thailand and four other top 10s. He also had a good start this season with top-10s in his first two Asian Tour starts, finishing fifth in the International Series Macau presented by Wynn and T10 in the International Series India presented by DLF. Lee continued his impressive cut streak on the Asian Tour to 20 last week at the GS Caltex Maekyung Open, and the last time he missed being around on the weekend was at the International Series Singapore in October of 2023.
• American John Catlin has posted one top 10 in three starts in the 2025 season, placing seventh at the New Zealand Open presented by Sky Sport in early March. His last tournament was Liv Golf Korea last week where he finished T39 filling in for injured Branden Grace on the Stinger GC squad. The 2024 Asian Tour Order of Merit champion had a spectacular season last year, posting wins in Macau and at the Saudi Open presented by PIF, three runners-up and eight top 10s in 15 events on the way to setting the all-time Money List record with US$1,456,800. He also recorded his best result in a Major, finishing T16 in the Open Championship at Royal Troon.
• Japan’s Kazuki Higa started his Asian Tour season with three straight top 10s, including a T2 at the New Zealand Open presented by Sky Sport, a T5 at International Series India presented by DLF and a T8 in the Smart Infinity Philippine Open. In last week’s tournament on the Japan Golf Tour he finished T6 at The Crowns. Higa won four tournaments in Japan in 2022, including the Asian Tour and Korean PGA Tour tri-sanctioned Shinhan Donghae Open, and topped the Japan Tour Money List that year.

Caledonian Golf Club. Picture by Graham Uden/Asian Tour.

• Lucas Herbert from Australia is part of Cameron Smith’s Ripper GC team on the LIV Golf League and is off to a good start to his 2025 LIV season finishing fourth in Hong Kong, T4 in Riyadh and T2 in Mexico City – his best LIV finish to date. After a T13 in Korea last week Herbert is now in fifth place in the individual standings. In his only Asian Tour start this season he was T8 at the International Series Macau presented by Wynn. Herbert was part of Ripper’s two team titles in 2024 when they finished third in the overall team standings. Prior to joining LIV he posted three DP World Tour victories, including one in Japan at the 2023 ISPS Handa Championship, and one PGA Tour win.
• Last week’s winner at the GS Caltex Maekyung Open Doyeob Mun from Korea is in great current form proven by his spectacular final round 63 at the difficult Namseoul Country Club track. He also had a good showing on the Korean PGA Tour the previous week finishing T7.
• The 2019 Order of Merit winner Jazz Janewattananond, a seven-time winner on the Asian Tour, has seen his game return to good form and he finished T2 at last week’s GS Caltex Maekyung Open after being the joint leader after three rounds. He also recorded a top 10 at the International Series Macau presented by Wynn six weeks earlier.
• Crowd favourite Ryo Ishikawa is making his first start in an International Series event, and the 20-time winner on the JGTO will be looking for his first title since winning the Mitsui Sumitomo VISA Taiheiyo Masters on the Japan Tour in November last year. He also won the Japan Players Championship in June of 2024.
• The Asian Tour has been at Caledonian Golf Club in the past when the Asia-Pacific Open Diamond Cup was held here in September of 2017. It was won by Daisuke Kataoka from Japan.