Jones Meets Wilson in Belfast Final: Two 6-5 Semi-Finals Decided by Unforced Errors

In frame ten, Sam Craigie led 5-4 and stood one frame from the Northern Ireland Open final. He potted the blue — a shot any professional executes thousands of times in a career. But the cue ball did not stop. It rolled on, hit the cushion and dropped into a pocket. The in-off cost four points on the scoreboard, but it took the table, the momentum and, ultimately, the place in the final. Kyren Wilson stepped up, levelled at 5-5 with a 56 clearance, and won the decider.

A few hours earlier, on the other table, Mark Williams — a three-time world champion — led Jak Jones 4-1 and faced a yellow his own commentators called easy. Pot it and it is 5-1, and the semi-final is effectively over. The yellow missed. Jones won three straight frames to level at 4-4, lost the ninth, then won the last two. Also 6-5.

Two semi-finals in Belfast, two occasions when the winner was not clearly the better player for most of the match. That is the most useful starting point of the week: in the short format, results tend to tell a story about errors rather than about technique.

Belfast, a week for the quiet men

The BetVictor Northern Ireland Open belongs to the Home Nations Series, an official WST ranking event, sitting below the Triple Crown but still an important link in the season's calendar. One structural detail matters here and I repeat it to anyone who asks me about snooker data: the semi-finals are best-of-11, first to six, one of the shortest semi-final formats in the Home Nations system. The final is longer, best-of-17, first to nine. Those two distances produce two entirely different samples.

Across 23 years commentating on snooker for VTC, I have covered nearly the whole era of Davis and Hendry, and the biggest lesson I took away was never the most beautiful shot of a match. It was the moment a player realises he is winning, and his breathing changes. Best-of-11 magnifies that moment many times over compared with best-of-35.

On rankings: Jak Jones arrived at world No. 22. Sam Craigie was No. 72. Mark Williams, close to 50, remains one of the most discussed names of the class of 2026, while Kyren Wilson is the 2026 world champion. Four players at four very different career stages — which is exactly why these two semi-finals read like a cross-section of the sport.

On the specific edition, I keep one note for verification: published WST records show the 2026 Northern Ireland Open final was contested by Kyren Wilson and Judd Trump, Wilson winning 9-3. If that data holds, then the edition in which Jones and Wilson meet in the final is not 2026 but a later one. This does not change the analysis of the semi-finals, but it is a textbook illustration of my working principle: before trusting a number, I ask where it was born. The same way I look at a player before judging him.

Behind the two 6-5 scorelines sits a fact rarely mentioned: neither finalist made a century break on semi-final day. A week people described in terms of big shots, and the data says the tickets were decided by small ones.

Two semi-finals, frame by frame

First match: Jak Jones against Mark Williams. Williams started better, led 4-1, and in the sixth frame faced a yellow that would have made it 5-1. That is the most important data point of the match, because it shows the contest was not decided by Jones's cueing quality in the early phase. Jones trailed by three frames, never controlled the table, and was handed his chance by an opponent's concentration lapse.

From 4-1, Jones won three straight frames to level at 4-4. This is what I call frame-level data: isolated frame wins with no recorded large breaks in the source report. Williams then edged ahead again at 5-4, and Jones had to win the last two. He did. Two comeback sequences in a single session.

Second match: Kyren Wilson against Sam Craigie. This is the more analytically interesting one, because it contains almost all the break data of the day. Wilson led 3-1, then let Craigie win four in a row and move 5-3 ahead. Wilson made three visits of 50 or more: 54, 95 and 98. Craigie made 55, a 56 clearance to level, and a 100 break. The world No. 72 made a century; the reigning world champion did not.

Wilson came back from 3-5 down, levelled at 5-5 with a 56 clearance after Craigie's in-off in frame ten, and won the decider. On the surface this is a brave comeback by the world champion. Read through the data, it is a match the No. 72 gave away rather than one the world No. 1 seized.

Technique: the decisive shot is not the pretty shot

Snooker analysis usually splits a frame into three layers: potting, position play and safety. Match reports tend to describe only the first layer, because that is the one that generates applause. Both Belfast semi-finals were decided in the second layer.

Take Craigie. In frame ten, leading 5-4 and one frame from the final, his error was not a difficult pot. He potted the blue — the potting succeeded. The failure lay in the cue ball's path after contact. In snooker technique, the cue ball must stop in a pre-calculated zone that opens the next shot. Craigie misjudged that zone, the cue ball hit a cushion and dropped. A pure position-play error, at the highest-leverage moment of the match.

Now look at Wilson's break sequence: 54, 95, 98. Two of those sit just below 100, and to me that is more interesting than a century. A break stopping at 95 or 98 usually means the player lost position near the red pack or on the final red-to-colour transition. Wilson scored well but could not close frames in one visit. For a player of his class, two stops in the 95-98 band in one session is a repeating pattern, not bad luck.

And Williams: the missed yellow at 4-1 was not a hard shot. Yellow is the lowest-value colour in the sequence, and the table at that moment was considered open. Such a miss close to 50 usually carries the signature of a concentration issue rather than a technique flaw. A veteran leading 4-1 in a best-of-11 tends to lower his alertness per shot, and the table forgives nobody in that moment.

On the safety layer, I have to be blunt: the source report provides no defensive data at all. No safety success rate, no counts of opponents put in trouble, no data on locked frames. For an analyst that is a large gap, and the correct handling is not to speculate but to state it plainly: insufficient information to assess the safety layer of any of the four players on semi-final day.

Rankings: an indicator slower than reality

Snooker's ranking list runs on prize money accumulated over the last two seasons. That mechanism has a property fans often forget: it is a lagging indicator. A big result lifts your ranking for two years, then drops out of the system when the cycle ends. It measures the past, not current form.

Jak Jones at world No. 22 is a clean example. He has reached a World Championship final, the longest format in the sport, best-of-35, losing 14-18 to Kyren Wilson. Reaching that final is a top-tier achievement. Yet at the time of the Belfast event his ranking was 22, and there is no ranking title on his public record. For me the gap between "has reached a World Championship final" and "has never won a ranking event" is the single most important piece of information about Jones, and it does not appear in the match report.

Sam Craigie at No. 72 is the number with the heaviest professional weight in the whole article. The WST Tour Card retention line sits around the top 64. A player ranked 72 sits below that line, meaning he is in the zone where professional status is at risk. Craigie's semi-final must be read in that context: he was not just playing a semi-final, he was playing for his career. The in-off in frame ten is the most expensive shot a player in his position can produce in a season.

What makes Craigie analytically fascinating is that he out-scored his opponent: 55, 100 and a 56 clearance, against Wilson's 54, 95 and 98. This is the classic "impressive single-match stats, low conversion" pattern — the most misleading kind of data in sport, because it creates the impression of progress while ranking and results say the opposite.

Mark Williams sits at the other end of the curve. He belongs to the class of 2026, has won the world title three times, and still competes near the top at almost 50. For a player like that, reputation always runs a few months ahead of current form. The missed yellow at 4-1 is data showing that gap, not evidence of broad technical decline.

The counter-intuitive angle: centuries do not measure closing

In popular sports storytelling, the century break is the measure of quality. I think that assumption deserves to be challenged.

Look at these two semi-finals. The only century of the day came from Sam Craigie, ranked 72nd. The world champion made none. If the century is the yardstick, the conclusion is that Craigie played better than Wilson. But the man in the final is Wilson. In this sample, the correlation between centuries and match wins is negative.

The reason lies in the structure of the sport. A century requires an open table, a flawless position sequence and a little luck. Winning a frame requires only more points than your opponent. In best-of-11, the number of frames winnable through three or four small visits far exceeds the number winnable in one visit. A century is an indicator of the moment; the scoreline is an indicator of closing. They do not measure the same ability.

This leads to a second counter-intuitive point about the final. Both Jones and Wilson have their best results in the long format. Jones reached a World Championship final at best-of-35; Wilson won one at best-of-35. But the Northern Ireland Open final is best-of-17, first to nine — the middle ground between their long-format comfort and short-format lottery. In theory that favours the faster frame-closer, Wilson, while leaving real room for variance.

And that variance is real. Based on my experience following matches, a player who reaches a final through two comebacks in one day usually arrives in one of two states: sustained adrenaline, or depleted concentration. Across many seasons of my own data, the second is more common.

One more thing needs saying, because it is the trap of this trade. The narrative that the final is a "repeat of the 2026 World Championship final" sounds compelling, but it rests on a sample of exactly one. The two men have met once in a final, over 35 frames. A 14-18 result cannot predict a best-of-17 on a different table, in a different city, in a different mental state. In statistics, a single observation can suggest; it cannot conclude. I write this not to dismiss that final — I write it to separate emotion from evidence.

Every season is a string of data, but my memory does not sit inside any model.

What remains after the lights go out

There is one truth about these Belfast semi-finals I want to keep longer than the numbers: all four players performed imperfectly. Williams missed an easy yellow. Craigie let the cue ball drop in the decisive frame of his career. Wilson lost four straight frames after leading 3-1 and twice stopped breaks in the 95-98 band. Jones won by assembling small frames rather than large visits.

For a data analyst, an evening like this is hard to write, because it offers no tidy hero. But it offers a tidier truth: in the short format, this sport does not reward the best potter, it rewards the man who errs last.

I am the one who stays with the spreadsheet after the arena lights go out — you may call it work, I call it a calling.

The question I carry into the final is not whether Jones can produce another comeback, but this: over two sessions of best-of-17, which player will be the first to hold his concentration long enough not to hand over the deciding frame? If Belfast has taught us anything these two days, it is that the outcome of a snooker final sometimes lies not in the winner's finest shot, but in the loser's smallest one.