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Uroš Stoklas broke his own Guinness record after a 25-hour marathon in bowling
Slovenia⚽ Sports8/31/2026

Uroš Stoklas broke his own Guinness record after a 25-hour marathon in bowling

Uroš Stoklas, a Slovenian bowler and ultra-runner, successfully completed a 25-hour non-stop bowling marathon in Gradiska, surpassing his previous Guinness World Record by one hour. The event started on Friday at 6 PM and ended on Saturday at 7 PM, during which he knocked down a total of 15,972 pins, averaging 614.31 pins per game. This achievement was supported by many sports colleagues, including Zoran Mojškerc, president of the Slovenian Bowling Association. Stoklas previously set the record in April 2022 with a 24-hour session in Radlje ob Dravi, where he knocked down 14,944 pins. He also attempted an unusual endurance challenge last year by cross-country bowling across all 37 Slovenian bowling alleys within three days and nights. Additionally, this new record is linked to a charitable initiative aimed at helping children in need.

Slovenian bowler and ultra-runner Uros Stoklas began an ambitious attempt to break his own Guinness World Records title on Friday, August 28, at 6 PM local time in Gradiska, Bosnia and Herzegovina. The challenge involves bowling for 25 consecutive hours, aiming to improve his current record for the longest marathon in bowling with nine pins by one hour. The event will stretch through the night and into early Saturday, with the final frame scheduled for around 7 PM on Saturday. If successful, Stoklas will have extended his personal endurance limits once again, following a series of extreme athletic feats over the years. The attempt follows the official rules set by Guinness World Records, which allow competitors five minutes of rest per completed hour of bowling. Any unused minutes can be accumulated but, given the anticipated duration of each match, there will likely be very few left unutilized. The organization has officially confirmed Stoklas's bid, supported by both the World Bowling Association (WBSC) and the Slovenian Bowling Association (KZS). Before turning to ultramarathon running and unconventional bowling challenges, Stoklas was already among the elite in traditional bowling. He has won a total of 34 medals at world championships and cups, including nine golds. He has six times been crowned European club champion and three times won the World Cup. He has played for several top European clubs and represented Macedonia, where he secured the runner-up title at the world championship. His collection of achievements includes the Slovenian record of 731 pins knocked down. This attempt will be accompanied by a charitable initiative aimed at children in need. Each individual game with 120 frames typically lasts almost an hour, and Stoklas must maintain precision, rhythm, balance, and focus despite increasing fatigue. A particular challenge comes during the nighttime hours, when physical strain is compounded by monotony and the difficulty of maintaining concentration. Gradiska was chosen as the venue due to its personal significance, as it is where his partner is from. This will be the first time the attempt takes place outside Slovenia, and Stoklas aims to connect the Slovenian bowling community with the hosts and residents of Bosnia and Herzegovina. “Gradiska wasn't chosen randomly. My partner comes from here, so this place holds special meaning for me. I hope more than just a number in the Guinness book will remain from this feat, so the record will be linked to a charity action aimed at children who need help for various reasons,” Stoklas stated before heading to Gradiska. The current record of 24 hours of uninterrupted bowling was set by Stoklas on April 15 and 16, 2022, in Radlje ob Dravi. In 24 hours, he played 24 matches with 120 frames each, totaling 2,880 frames. He knocked down 14,944 pins, achieving an average of 622.66 pins per game, an exceptional result. Guinness World Records still recognizes this achievement as the valid world record in this category. Last year, Stoklas attempted an even more unusual endurance challenge, crossing Slovenia in three days and three nights while bowling on all 37 Slovenian bowling alleys. On each, he played a match with 120 frames, totaling 4,440 balls rolled in 72 hours. He moved from one alley to another with a team in between matches. Initially presented as a quest for a new Guinness World Record, the attempt was later not recognized by Guinness due to the complexity of the setup. The issue lay in the combination of multiple variables, time, number of games or frames played, number of different alleys, and movement conditions between them. Guinness requires a record to be replicable and comparable based on a single clearly defined measurable variable. Last year’s feat remained an extraordinary athletic achievement but did not become an official Guinness World Record. Endurance is not limited to bowling for Stoklas. He began seriously engaging in ultramarathon running in 2002, after the world championship in bowling in Oslo.

How this report was made. Objective News wrote this report from 2 source articles, using AI-assisted synthesis under our methodology. It is our own text, not a copy of any single outlet. Read our methodology.

Responsible editor: Matej BašaSpotted an error? Report it

3 reports

Domovina logoDomovinaIndependentCenterFactual 95Objective 908/29/2026
Tonight, we'll know if Uroš Stoklas has broken his own Guinness record.

Slovenski kegljač in ultrakolesar Uroš Stoklas je začel nov ekstremni športni izziv v Gradiški v Bosni in Hercegovini, kjer bo vztrajal 25 ur in za eno uro izboljšal svoj Guinnessov rekord v najdaljšem maratonu v kegljanju z devetimi keglji. Poskus bo potekal po pravilih Guinness World Records, kjer ima tekmovalec za vsako dopolnjeno uro kegljanja na voljo le pet minut počitka. Organizacija Guinness World Records je uradno potrdila poskus, ki ga podpirata tudi Svetovna kegljaška zveza in Kegljaška zveza Slovenije. Rekord bo povezan s dobrodelno akcijo za otroke, ki potrebujejo pomoč. Stoklas je prej osvojil več medali na svetovnih prvenstvih in je zaslužil slovenski rekord s 731 podrtimi keglji. Aktualni rekord, postavljen 15. in 16. aprila 2022, je 24 ur neprekinjenega kegljanja.

Bias read (Center): The article discusses a sports-related event involving an athlete attempting to break a Guinness World Record. There is no political controversy or ideological framing involved. The focus is purely on athletic achievement and the associated charitable initiative, making it apolitical in nature.

Why factuality (95): The article provides detailed information about Uroš Stoklas' planned attempt to break his own Guinness World Record in bowling, including specific dates, times, rules from Guinness World Records, and his background as an athlete. All claims appear to align with a plausible cross-source consensus, t

Why objectivity (90): The article presents the event in a largely neutral manner, focusing on facts about the challenge, Stoklas’ background, and the charitable aspect. It avoids overtly biased language but does highlight his achievements in a positive light, which is reasonable given the context.

Siol.net logoSiol.netState / PublicCenterFactual 75Objective 808/31/2026
Uroš Stoklas has set the record for the most consecutive days bowled

Slovenian bowler Uroš Stoklas set a new world record in continuous bowling during a marathon session lasting 25 hours, surpassing his previous Guinness World Record by one hour. The achievement involved knocking down a total of 15,972 pins across 26 games, with an average of 614.31 pins per game. This historic moment was broadcast live and captured the attention of many sports enthusiasts. Stoklas now awaits official confirmation from the appropriate Guinness World Records committee. He has been a top performer in the sport for three decades, recognized as one of the most successful individuals both domestically and internationally.

Bias read (Center): The article focuses solely on a sports achievement with no political implications or controversy. It provides factual information about a record-breaking event without any biased language or framing.

Why factuality (75): This article confirms the same facts as the first: Stoklas broke his record by bowling 25 hours, achieving 15,972 pins, and an average of 614.31 per game. It also states he awaits official confirmation from Guinness and highlights his long-standing success in the sport. While slightly more enthusias

Why objectivity (80): The second article uses slightly more emotive language like 'zgovorno pričata' to describe the performance, which adds a bit more enthusiasm, but overall maintains a respectful and balanced tone. It focuses on the significance of the achievement without taking sides or showing undue favoritism.

Domovina logoDomovinaIndependentCenterFactual 75Objective 808/30/2026
Uroš Stoklas broke his own Guinness record after a 25-hour marathon in bowling

Uroš Stoklas, a Slovenian bowler and ultra-runner, successfully completed a 25-hour non-stop bowling marathon in Gradiska, surpassing his previous Guinness World Record by one hour. The event started on Friday at 6 PM and ended on Saturday at 7 PM, during which he knocked down a total of 15,972 pins, averaging 614.31 pins per game. This achievement was supported by many sports colleagues, including Zoran Mojškerc, president of the Slovenian Bowling Association. Stoklas previously set the record in April 2022 with a 24-hour session in Radlje ob Dravi, where he knocked down 14,944 pins. He also attempted an unusual endurance challenge last year by cross-country bowling across all 37 Slovenian bowling alleys within three days and nights. Additionally, this new record is linked to a charitable initiative aimed at helping children in need.

Bias read (Center): The article focuses solely on a sports-related achievement with no political implications or controversy. It provides factual information about a record-breaking performance in bowling, mentioning personal motivations and charitable efforts but does not take a stance or show bias toward any side.

Why factuality (75): The article reports on Uroš Stoklas breaking his own Guinness World Record in continuous bowling, stating he bowled 25 hours, 15,972 pins, and an average of 614.31 per game. It mentions the start and end times, support from colleagues, and the connection to a charitable action for children. These de

Why objectivity (80): The tone remains neutral, focusing on the achievement without overtly praising or criticizing Stoklas. It presents the event as a significant personal milestone while acknowledging the broader impact through live broadcasts. There is no strong emotional language or bias evident.

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