Chess Olympiad 2026 Stats

Biggest Blunder

The Lichess-marked blunder that cost the most winning chances.

Ties: board order.

Updated 22 Sept 2026, 00:46 CEST

Record

95.1% win chance lost

Round 4, 57… Kc4, #−6 → +11.09Sina Tadesse Negi ETH 1447½againstWCM Daisy Simenda ZAM 1857½
Round 6, 42. Kf1, #8 → −14.09Mary Salamatu Farmer SLE0againstCherry-Ann Benjamin ANT1
Round 6, 41… h5, −10.93 → #8Mary Salamatu Farmer SLE0againstCherry-Ann Benjamin ANT1

Round by round

Round 1

90.9% win chance lost

22… Kd8, −7.75 → +8.89Radoslawa Lascar BEL 19751againstWCM Wafa Yaqoob BRN 15340

Wednesday 16 September

Round 2

94.6% win chance lost

24. Bd4, +9.78 → −9.73WCM Walijah Ahmed BAN 19490againstWFM Beren Kalyoncu TUR 20341

Thursday 17 September

Round 3

94.3% win chance lost

33. d5, +9.26 → #−2Nkwanyane Nolwazi SWZ 15701againstPema Yangsel Dorji BHU 14810

Friday 18 September

Round 4

95.1% win chance lost

57… Kc4, #−6 → +11.09Sina Tadesse Negi ETH 1447½againstWCM Daisy Simenda ZAM 1857½

Saturday 19 September

Round 5

92.9% win chance lost

32… Qd5+, −9.15 → +8.80Proudpitcha Suthiponpaisarn THA 17170againstMaria Belen Carvajal Mendoza CHI 18241

Sunday 20 September

Round 6

95.1% win chance lost

Monday 21 September