Rapid · 10 min, 5s delay/move

10 d5 Chess Clock

Ten minutes each with a five-second simple delay per move — the USCF equivalent of a rapid 10+0 game.

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About the 10 d5 time control

The five-second buffer is generous enough to shield fast moves entirely: routine plays, piece retreats and simple checks cost nothing off your main ten minutes. Only genuine thinking time — beyond five seconds — counts against you.

Compared to 10+0, endgames are fairer without the clock-scramble of sudden death; compared to increment controls like 15+10, time can only decrease (never increase), so managing your ten minutes remains important throughout.

In short: 10 minutes per player with 5 second delay, in the rapid range. Tap below to start it now, or read more about how the time-control tiers compare.

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Frequently asked

Is 10 d5 better than 10+0?

For fairer endgames, yes — the delay shields simple moves from costing time. For pure speed and drama, 10+0 keeps more clock pressure. It comes down to preference and whether you are playing USCF-standard events.

Why does USCF use delay instead of increment?

Historical and practical reasons: US tournament clocks were built around delay before Fischer increment became dominant. Delay remains the USCF club standard, though increment has been gaining ground at higher levels.

Other rapid controls

10+015+1025+1015 d5 All rapid Compare time controls