Finland's Albert Eckhardt arrived as a relative unknown for the Lytham Trophy. He left with much respect after bettering a star-studded field.
Eckhardt was 430th on the World Amateur Golf Ranking when he turned up at the Open Championship venue. He's now ranked 286 places higher thanks to his impressive win. He moves to 144th on this week's table.
The Finnish player compiled rounds of 73, 72, 69 and 73 for a 7-over-par total of 287 to earn a playoff with Ireland's Jack Hume. Eckhardt prevailed in the playoff to take home the prestigious Lytham Trophy.
Eckhardt is now the world highest ranked Finnish amateur, five spots higher than Toni Hakula. Hume also makes a dramatic move this week. He began the Lytham ranked 700th in the world, but climbs 327 places to world number 373.
Northern Ireland's Reeve Whitson helped his Walker Cup chances with a fifth place finish. He moves nine places to 50th as a result.
Max Homa of the United States was the other impressive winner this week. He won the Pac-12 Championship at the Los Angeles Country Club.
The University of California player won the title thanks to a 9-under-par opening round of 61. He added further rounds of 70, 71 and 69 for a five-shot victory over teammate Michael Weaver.
Homa improves 15 places on this week's ranking to 27th. Weaver, runner-up in last year's US Amateur, climbs 11 places to 18th.
South Africa's Brandon Stone joins Weaver in the top 20, moving up one spot to take 20th place.
James Erkenbeck of the United States is the only other player this week besides Whitson to breach the top 50. The University of New Mexico player climbs 10 places to world number 41.
Amy Boulden entered the Welsh Open Stroke Play Championship as favourite to take the title. The Curtis Cup star lived up to her billing.
Boulden was the only player in the field to match par or better over three rounds at The Vale Resort in South Wales. She began with consecutive level par 75s, before punctuating the victory with a closing 1-under-par 74 for 54-hole total of 224, 1-under. It helped the member of Conwy Golf Club in North Wales to a four-shot victory over Alexandra Peters of England.
Boulden, who helped Great Britain & Ireland win last year's Curtis Cup with two wins and two losses, moves 16 places on this week's World Amateur Golf Ranking to world number 72. Peters breaks into the world top 100, improving 15 places to 86th.
Kimberly Kaufman of the United States is the only player this week to break into the world top 20. The Texas Tech student moves up one spot to 20th. Only one player breaches this week's top 50. Mun Chin Keh of New Zealand takes that honour with a move of 14 places to 40th.
Peters isn't the only player to break into this week's top 100. Three others join her this week. Alexandra Kaui of the United States improves two places to 100th. However, Australian Jo Charlton and Karolina Vlckova of Czech Republic make more dramatic moves.
Charlton jumps a massive 180 places this week to 93rd. Vlckova's rise isn't quite as large but impressive nonetheless. She climbs 102 spots to world number 87 thanks to winning the Czech Tour 1. She takes over from compatriot Katerina Ruzickova as the highest ranked Czechoslovakian golfer, and the only Czech player in the world top 100.