My Puck Line Model paper-trades NHL by fixed rules. Its record can't be edited.
Trades either side of the puck line when the Lineup goals model, weighted against market prices and learning nightly, is 4+ points above the exchange price, at prices from 30 to 70 cents.
“Take either side of the puck line when our goals model, weighted against market prices and learning nightly, gives it at least 4 points more chance than the exchange price, and the price is between 30 and 70 cents. The market weighting is learned for prices 6 hours or more before the start, so it trades up to then. The model is shown with its past-season record, including where it fell short of the market.”
Lineup goals model, weighted against market prices, learning nightly: This model hasn't beaten market prices yet. It runs with the owner's approval while we test it live.
Experimental: these models haven't beaten market prices yet. They run with the owner's approval while we test them live.
On $400.00 in paper positions and fees.
4 positions is too few to separate skill from luck.
Lineup goals model, weighted against market prices, learning nightly (spread, learning setup L1-base4)
Against the market over 1 period tested: tied in 1.
Oct 4, 2024 to Apr 18, 2025, development games, a day before the start · 1,310 games
Prediction error, lower is better (log loss): model 0.669, market 0.669. Calibration: off by 8.8 points on average.
Backtests use past market prices, and past results don't predict future ones.
Early records swing a lot.

Partner offer
Kalshi
Trade $25 and Get $25!
Use code LINEUP
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
PIT @ CHI, Oct 13, 8:00 PM ET · Traded Oct 12, 4:29 PM ET
35¢ · Polymarket order book · fee $3.31 · $96.69 position · model 40.5¢ (+5.5 pts)
Closing price shows once it settles
Model: Lineup goals model, weighted against market prices, learning nightly, learning setup L1-base4Experimental
EDM @ SJS, Oct 10, 4:00 PM ET · Traded Oct 9, 11:59 AM ET
35¢ · Kalshi order book · fee $4.37 · $95.63 position · model 40.8¢ (+5.8 pts)
Closed at 39.5¢, beat the close by 2.9¢ after the fee
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Hypothetical paper trades. Not financial or trading advice.
Model: Lineup goals model, weighted against market prices, learning nightly, learning setup L1-base4Experimental
TOR @ COL, Oct 10, 7:00 PM ET · Traded Oct 9, 11:19 AM ET
40¢ · Kalshi order book · fee $4.03 · $95.97 position · model 45.7¢ (+5.7 pts)
Closed at 45.5¢, beat the close by 3.8¢ after the fee
Model: Lineup goals model, weighted against market prices, learning nightly, learning setup L1-base4Experimental
ANA @ WPG, Oct 9, 8:00 PM ET · Traded Oct 8, 3:19 PM ET
31¢ · Polymarket order book · fee $3.43 · $96.57 position · model 36.4¢ (+5.4 pts)
Closed at 30.5¢, missed the close by 1.6¢ after the fee
Model: Lineup goals model, weighted against market prices, learning nightly, learning setup L1-base4Experimental
SJS @ STL, Oct 8, 8:00 PM ET · Traded Oct 6, 10:04 PM ET
32¢ · Kalshi order book · fee $4.56 · $95.44 position · model 37.6¢ (+5.6 pts)
Closed at 36.5¢, beat the close by 3¢ after the fee
Model: Lineup goals model, weighted against market prices, learning nightly, learning setup L1-base4Experimental
Polymarket: 18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.
Version 1 · current
Take either side of the puck line when our goals model, weighted against market prices and learning nightly, gives it at least 4 points more chance than the exchange price, and the price is between 30 and 70 cents. The market weighting is learned for prices 6 hours or more before the start, so it trades up to then. The model is shown with its past-season record, including where it fell short of the market.
Locked Oct 3, 2026 · 5 positions · 1–3 · 1 open · −$126.78
Editing locks a new version. The agent's record includes every version's positions.