The Sport Trading Resembles Most
The US Open just finished and I spent a fair amount of time in front of it over the two weeks. Somewhere in the middle of that, an old question came back to me: if trading is like a sport, which one?
Boxing gets a lot of votes. You take damage, you keep standing, nobody can help you. Chess for the pattern recognition. Golf for the internal monologue. Motorsport for the risk management.
I'm going with tennis. Partly because I started playing at five and it's the sport I understand from the inside. But mostly because of something tennis does with its scoring, which I think is the more useful comparison.
Tennis
Tennis is an individual, performance-based sport. No defender to blame, no teammate to carry you, no substitution at half time. You and the scoreboard, for hours. Trading has the same structure and the same loneliness.
Same with the toolset. A player needs a serve, a backhand, a volley, movement, something to fall back on when the main weapon isn't working — and a trader assembles a comparable set of tools for trend, levels, ranges and volatility.
Both of those are real. Both are also shared with boxing and golf, so neither is what makes tennis the closest fit. That comes from the scoring.
Fifty-four percent
Roger Federer once told a graduating class that "In tennis, perfection is impossible," and then gave them the number behind it: across his career he won almost 80% of his matches, and only 54% of the points he played.
That speech got used heavily, usually for the mindset lesson — don't dwell on the last shot, move to the next one. Fair enough. What tends to get skipped is that the number isn't personal to Federer.
Nadal and Djokovic sit in the same place. More than 60 majors between the three of them, career win rates around four matches in five, and point-win rates all hovering a shade above half. Nobody in the recorded era has meaningfully exceeded it.
Three of the greatest careers the sport has produced, built on losing nearly every second point.
And it goes further than that. Roughly one ATP match in twenty is won by the player who won fewer total points. Not a rounding error — it happens throughout every season, including the 2019 Wimbledon final, where Djokovic beat Federer having won fewer points, 204 to 218, and fewer games, 32 to 36.
Tennis makes points unequal
That gap between 54% of points and 80% of matches isn't luck. It's architecture.
Tennis doesn't add points up. It bundles them. Four points make a game, six games make a set, two or three sets make a match — win by two at each level — and every bundle resets to zero when it closes. Win a set 7-6 and you carry nothing forward. Win it 6-0 and you carry exactly the same nothing forward.
Which means the same physical point is worth wildly different amounts depending on where it sits. A point at 40-0 on your own serve is nearly free. A point at 30-40 on your opponent's serve, second set, 4-5 down, is the match. Identical shot, identical effort, completely different consequence.
The scoring could have been built on total points won — simpler, and the better player would win more often. Whatever the origins of the system tennis actually uses, the effect is that when you perform matters more than how much.
One difference is worth naming before going further. A tennis player can see break point on the scoreboard — 30-40, second set, the stakes printed right there in front of them.
Traders get no such display. Every setup looks roughly like the others going in, and which one mattered only becomes clear afterwards. Same structure, with the useful information removed.
Which is exactly why it becomes a mental game
Djokovic put it plainly after a French Open semi-final years ago: at that level everyone is developed, committed and disciplined, and in the end it's mental determination that decides who wins.
At the top of the sport the physical gap between players is small. Everyone has the shots. What separates them is the handful of points where the scoring system has quietly raised the stakes.
There's an old line in tennis that you're always playing two opponents — the one across the net, and yourself. The scoring structure is what gives the second one its openings. Nothing much is at stake in a routine service game. It's 30-40 in the second set where the second opponent shows up.
Watch a professional at 40-0 and then watch the same player facing break point. The intensity isn't the same, and it isn't supposed to be. The serve goes to the pattern they trust most rather than the one that might win the point outright — the charting data shows players reaching for their most reliable delivery roughly twice as often on break points. The low-percentage winner attempt disappears. Some players visibly grow in those moments and some visibly shrink, and that difference has produced more careers and ended more of them than technique ever has.
Conceding a set
There's a tactic in tennis I don't think has an obvious equivalent anywhere else.
Watch a player at 0-5 down in a set. They stop chasing it. Risk goes up on the returns because there's nothing left to protect, the shots get looser, and the mind has already moved to the next set. A shirt change, a slow walk, a bathroom break. The set is treated as spent.
From the outside it looks like giving up. It isn't. It's a calculation about energy — the set is gone, and whatever gets spent fighting for it won't be available twenty minutes later when the score is level again.
The trading version is closing before the stop is hit, because the reason for the trade stopped existing. Not every exit has to be forced by the market.
And here's why conceding is available as a tactic at all: losing a set 0-6 costs exactly one set. Losing 6-7 after two hours of tennis also costs exactly one set. You cannot lose more of a set than one set, no matter how badly it goes.
The scoring system is a stop loss written into the rules of the game. That's why a player can be dismantled in the first set and still win in four — and why a 54% point-win rate produces three of the greatest careers ever instead of a wipeout.
A tennis player only needs to protect the sets. A trader, unable to tell which position was the important one, has to protect all of them.
What does carry over
I'd be overstating it if I said the damage stays inside the set. It doesn't.
Get taken apart 6-1 and something travels into the next one. The doubt. The sense that your opponent has your number. A small hesitation on a shot you'd normally hit without thinking. The scoreboard resets automatically. The head doesn't.
That's the second opponent doing its work. The one across the net gets a rest between sets. The one in your head doesn't.
Traders know this from the far side of a losing streak. The account is down by a defined, survivable amount, exactly as planned. The person sitting in front of the screen is in worse shape than that number suggests, and starts reading the next setup through it.
And here trading is arguably harder than tennis, because the second opponent is the only one you have. The market isn't trying to beat you. It doesn't know you're there.
Where the comparison breaks
Two places, and both are worth stating.
Tennis caps the upside. Winning a set 6-0 earns exactly what winning 7-6 earns — all that extra dominance converts to nothing. Trading doesn't work that way. A trade allowed to run can return several times what a stopped-out trade cost, and that asymmetry simply isn't available to a tennis player.
The second one is bigger. Tennis has no mechanism for ruin. Lose a match and you lose a match. There is no version of the sport where one bad afternoon empties the bank account.
For that, you need a different sport. Years ago I put some hours (maybe too many) into a WRC rally game, and one run has stayed with me. Mexico. Fifteen stages driven cleanly, in contention for the win, everything managed. Then stage sixteen felt like the moment to press the pedal to the floor and go for the win — and the car went off a cliff. Fifteen stages of discipline erased in about four seconds.
So, which sport?
Tennis, for the structure. Unequal points, contained losses, a second opponent the scoring keeps inviting in, and a system honest enough to admit that winning more points and winning the match are two different things.
Rally for the warning about what the tennis analogy leaves out.
Thanks for reading 😊
Which sport would you pick — and what does it get right that tennis doesn't?
TITradingView Ideas16 Sept
