
The #1 Trader on Polymarket. (12.5+ Million P/L)
KCH123 recently took the #1 spot on the Polymarket leaderboard, so this is the right time to break down HOW he actually enters these markets. We posted the full report on him below, but I wanted to share the general strategy that he is using. One thing to keep in mind is that true reverse engineering will not be possible through his logs. I believe he has his own sports model and execution layer on top of it.
over 33 days KCH123 ran $743K in profit. This is about 16% ROI. 10.7K buys, zero sells, every position held to settlement. he's primarily focused on two sports over the past month. He does partake in NFL as well during the season.
- NBA $990K deployed, +$722K P/L, +72.9% ROI, 82.9% win rate across 1,676 bets
- NHL $3.48M deployed, +$20K P/L, +0.6% ROI (i thought this was interesting...so much more deployed, but so much less return)
HOW HE SCALES IN:
his scale in is clearly automated and runs in three distinct phases:
- probe. cheap, small fills at fair value while the event is still uncertain. his median fill is just $6.67.
- wait. he sits on the probe and lets the event develop. no chasing, no incremental adds.
- slam. once his read confirms, he loads in seconds. his max single fill is $190,452, and the top 5 fills make up 83.5% of all deployed capital. the median time between his fills is 2 seconds, and 86% of fills land within a minute of the previous one.
A WINNING EXAMPLE: SPREAD: NUGGETS (-11.5)
this is his single most profitable market in the dataset. 119 fills, $294k deployed, +$294k P/L. he literally doubled his money on one game.
When you look more granularly.. all 119 fills landed in a 192 minute window..which is roughly the pre-game and full game window for that NBA matchup. every single one of his 119 fills was at exactly $0.50 per share. he found a market that Polymarket was quoting at a coin-flip price for a spread he believed was significantly favored, and he just accumulated every available offer at $0.50 across three hours, scaling fill sizes from $10 probes early to a $933 final clip in the last minute before settle. total shares accumulated: roughly 589k. the Nuggets covered. every share paid $1.00. clean 100% return on the capital he committed to that market.
the lesson here: his single biggest win was not a 4th-quarter "buy at $0.95" slam. it was patient accumulation at what looked like a fair-value quote that he disagreed with.
A LOSING EXAMPLE: OILERS VS. DUCKS
same mechanic, wrong read. one NHL playoff game cost him $143K.
- pregame: small probe on the favored Oilers, plus a couple of cheap long-shot Ducks hedges
- early game, Oilers leading: slams one $38K fill at $0.81, bigger than his stake in most winning markets
- game turns: Oilers price collapses into the $0.50s; he doesn't sell, keeps buying the dip
- brief rebound: price bounces back to the $0.80s, he loads again on the way up
- final: Ducks win, $149K of Oilers shares settle at zero, net -$143K on the game
Sometimes the games just dont go the way they are predicted. With that being said, KCH123 is NOT changing his plan at all if that happens. he is not selling, or exiting positions if they go the wrong way. It's simply the cost of doing business.
OVERALL THOUGHTS
I think he's using his own sportsbetting model that has an automated polymarket execution layer that scales into what the betting model is suggesting. It also seems that he sticks with what the model says. Even when the game isn't going to plan, he doesn't sell, he holds the position. It is most likely more profitable to buy and hold and see it through than buy, and sell if it doesn't go your way in an attempt in limit losses. What would happen in those cases more often than not the original bet would win (just my thoughts)
If you're interested in building your own polymarket bot, or already working on one, Poly Research & Robotics discord -> https://discord.gg/BU9EjyqesV