Duong Quoc Hoang and the Call-Shot Test at the 10-Ball World Championship in Ho Chi Minh City

At table number four inside Phu Tho Arena, a player set down his cue and shook his head. The 10-ball had settled cleanly into the corner pocket, the click still ringing in the air, but the referee did not count it. He had called the wrong pocket. At the World Pool-Billiard Association (WPA) Men's 10-Ball World Championship, a ball that drops into a pocket can still fail to count if the player did not first declare which pocket he intended. The call-shot rule is written plainly into the event regulations, and it is the technical spine of the entire tournament now being staged in Ho Chi Minh City. I stayed behind after that match for a long while, long enough to hear the balls rolling across the cloth and the crowd holding its breath each time a player bent to aim. Ten years of watching billiards, from commentating snooker for VTC in the Davis and Hendry era, taught me one thing: the hardest part of this sport is not the shot, it is whether the viewer reads the rules correctly. In 10-ball, luck is stripped away almost entirely, and that is the life-or-death difference from 9-ball. This is what I want to say first, before naming anyone: to understand a billiards event, you read the rules first, the table second, and the person last. A mistake years ago taught me to read the player's name before reading the formation, and I am not repeating it here. This year's edition is the second staging of the WPA Men's 10-Ball World Championship, running from September 19 to 26, with nearly 200 players from 40 countries. The total prize fund is 500,000 US dollars, of which the champion takes 80,000 dollars, roughly 2 billion Vietnamese dong. The event is co-organized by the WPA together with the Ho Chi Minh City Department of Sports, the Vietnam Billiards and Snooker Federation, and the city's Billiards and Snooker Federation. What stands out structurally is the bundled three-tournament format. Alongside the men's 10-ball content, the organizers placed the Poison Saigon Women's 9-Ball Open from September 21 to 25 with a 90,000-dollar prize fund, and a mixed-doubles event branded Box Billiards from September 19 to 23 with 111,000 dollars. Combined, total prize value exceeds 700,000 dollars. I place this structure in the festival-model category, meaning a major event wrapped in satellite content designed to pull in different audience groups. Bringing a women's 9-ball event and a mixed-doubles event into the same window is not a small detail. It shows the organizers want to broaden the viewing base rather than serve only a narrow specialist audience. There is, however, a data gap I have to state plainly. The regulations do not publish the elimination format, the race length per match, or the qualifying pathway. With a field of nearly 200 players, match length directly determines the probability of an upset. If matches are short, variance rises. If matches are long, the technically complete player gains a clear edge. Without this data, any judgment about shock potential is directional, not conclusive. Now comes the most analysable part: Duong Quoc Hoang. He is introduced as Vietnam's number one player, nicknamed Hoang Sao, and the headline figure of the host delegation. Also competing are Luong Duc Thien, Pham Phuong Nam, Nguyen Anh Tuan, and Chu Viet Hoang. Five Vietnamese players in a world championship signals domestic squad depth, no longer the case of a lone flag-bearer. Hoang's record at this very event is the most valuable data I have. He has appeared three times before. In his first appearance, he exited early. In the next, he reached the round of 32. In the most recent, he reached the round of 16. That trajectory moves monotonically upward, and in a sport where the call-shot format rewards repeat experience, it is a format-specific signal of adaptation, not a courtesy compliment. Reaching the round of 16 in a world championship of nearly 200 players is an elite-tier result, and repeating it at home makes his baseline more credible. But I have to separate two things. Reaching the round of 16 is a result. Winning the title is another story. The source article cites an opinion that he is a heavyweight contender for the championship, and that is an opinion, not a fact. The piece provides no world ranking for him, no head-to-head comparison, and names no international rival. When the data is silent, I keep my conclusion conditional. One more technical point. The call-shot format removes random pots, meaning a scoring run is easily cut short by a small error in cue-ball position. This elevates the role of safety play, the defensive shots that push an opponent into trouble. Whoever controls the cue ball better survives longer here. In 9-ball, a lucky ball can swing a rack. In 10-ball with call-shot rules, luck has almost no door. I once wrote that every formation is a confession, and the analyst's job is to hear it speak. Here, that formation is the table after the break. A break that leaves the cue ball stuck in the cluster is a player confessing he has not controlled his power. A break that splits the cluster cleanly and keeps the cue ball mid-table is a player saying he has already calculated three shots ahead. This brings me to the contrarian angle I consider most important in this piece. The story told by domestic media is this: Vietnam's number one chases a world title on home soil. Headlines revolve around the 2-billion-dong champion's purse. This framing maximizes general-reader attention, and it is reasonable as a communications choice. But it does not mean the performance pressure has been measured. The expectation gap sits here: Hoang's objective baseline is the round of 16, while the expectation has been pushed up to the championship. Home pressure is a two-way variable. A crowd can lift a player, and it can also drag him down. For someone carrying the national number one label, playing before a home audience, every missed pot is amplified. No data in the source allows me to determine the direction of this variable, so I leave it open. I also have to address a professional trap. In 2026, when Germany faced South Korea in the World Cup group stage, I predicted the gap behind Germany's defence from the 88th minute and wrote the piece that same night. My editor rejected it, saying I was too young to assert it. The next morning, international media discussed exactly that gap. From that shock, I learned that every match is its own distinct space, and old templates must not be stamped onto new events. The same applies to billiards. A 10-ball event in Ho Chi Minh City does not operate on the logic of a football match in Kazan. The only transferable thing is method: read structure first, read people second, and always leave a door open for the conclusion. There is another notable economic detail. The two satellite events carry brand names, Poison and Box Billiards. This is the industry's direct commercial transmission channel: equipment makers sponsor the event, brand names travel with the content, and consumers are reached through the very tables. It is not a new model, but it shows equipment money flowing into the event, not only media money. Ho Chi Minh City hosting this world championship for two consecutive years is a signal of organizational capacity, sponsor confidence, and market scale sufficient to absorb a tournament complex worth over 700,000 dollars. A single staging could be an exhibition. Two in a row is different. On governance, the sanctioning chain here is clean: the WPA is the international rule-making body, the Vietnam Billiards and Snooker Federation and the city federation are the national and local levels, and the Department of Sports is the administrative level. I note one boundary to keep: pool is governed by the WPA, entirely different from snooker, governed by the WPBSA and WST. Match-fixing precedents from snooker carry no applicable value for this event, and mixing the two systems is a methodological error. No sign of violation, rules dispute, or compliance issue appears in the source. When the stands are empty, data becomes the only applause I trust, but here the stands are not empty, and the data holds nothing suspicious either. On competitive risk, I place the overall level at low to medium. The main source is the combination of a nearly 200-player field and the call-shot format. Call-shot rules reduce luck-driven variance, but the large field keeps survivor risk meaningful. The net effect is that upset risk is moderated, not eliminated. Based on my experience following matches, I always check three things before judging a player at a major event: world ranking, direct head-to-head record, and match length. All three are unavailable here. So I set Duong Quoc Hoang's reference benchmark not as the championship, but as repeating the round of 16 and going at least one round further. That is a verifiable measure, whereas a title must wait for the table to answer. There is one human moment I want to keep. After a safety shot pushed the cue ball tight to the rail, Hoang straightened up, exhaled, and looked at the scoreboard rather than at the crowd. That is the gesture of a man telling himself the match is still long. For a player competing at home, not looking at the stands is sometimes the most important skill. Football is the science of margins; the best are not those who never err, but those who err least. Pool under the call-shot format runs on exactly that principle, except here every error is counted by a ball rolling back to its old position. What I want to watch when the tournament closes is not whether Vietnam wins. I want to know whether a national number one, after three editions moving from early exit to the round of 32 and then the round of 16, turns the fourth into a new marker. If he does, the story worth writing will no longer be about chasing 2 billion dong, but about a development system that has begun producing players capable of standing firm in the late rounds of a world championship.