Challenge 01 is now free! Try the Order Book challenge in C++ or Rust — no subscription required. Set up your repo, submit your solution, and see how you rank. Start now

13 Rust challenges now live! Every C++ challenge except Ring Buffer and Seqlock has a Rust counterpart — same problems, same thresholds, separate leaderboards. unsafe is blocked. Prove you can go fast in safe Rust. Browse Rust challenges

Performance Lab

Challenges

Write fast code. Get certified benchmark results.

Your submissions are private. Submit as often as you like — only your best score appears on the leaderboard.

Subscription required. Challenge access is available for $5/month, or included with a HFT University subscription. Challenge 01 (Order Book) is free — try it now, no subscription needed. Log in if you already have access.

Challenge	1st	2nd	3rd
Challenge 01: Best Price Tracker	Jikan 14 cycles/op	Stefan P. 17 cycles/op	Malacarne 18 cycles/op
Challenge 02: Multi-Symbol Order Book	Hang 2148 cycles/op	Suhas G. 3464 cycles/op	Ranadheer K. 4244 cycles/op
Challenge 03: Event Scheduler	Roman Sztergbaum 768 cycles/op	bdcbqa 1240 cycles/op	blumper m. 1348 cycles/op
Challenge 04: Event Scheduler (No Cancel)	bdcbqa 310 cycles/op	h3isenberg 310 cycles/op	Roman Sztergbaum 310 cycles/op
Challenge 05: Ring Buffer	Andrey S. 279 cycles/op	bdcbqa 284 cycles/op	Malacarne 294 cycles/op
Challenge 06: Seqlock	Michael Ostapenko 42 cycles/op	Sarthak Rout 46 cycles/op	Hang 46 cycles/op
Challenge 07: String Map	kkhan 17 cycles/op	Stephane D. 17 cycles/op	Przemek S. 18 cycles/op
Challenge 08: Ticker Lookup	Michael Ostapenko 10 cycles/op	Malacarne 14 cycles/op	blumper m. 14 cycles/op
Challenge 09: FIX Parser	Malacarne 760 cycles/KB	blumper m. 761 cycles/KB	Magnus L. 1120 cycles/KB
Challenge 10: FIX Encoder	blumper m. 107 cycles/msg	Malacarne 161 cycles/msg	Przemek S. 250 cycles/msg
Challenge 11: Rolling Counter	blumper m. 37 cycles/op	Przemek S. 44 cycles/op	bdcbqa 45 cycles/op
Challenge 12: Feed Arbiter	Panos 4 cycles/op	blumper m. 17 cycles/op	Malacarne 20 cycles/op
Challenge 13: Implied Book	blumper m. 92 cycles/op	Hang 189 cycles/op	bdcbqa 272 cycles/op