Sopot - Two unrivalled stars of track and field let all their class shine at the World Indoor Championships on Saturday, as unheralded Briton Richard Kilty was crowned a shock winner of the men's 60m.
American combined events king Ashton Eaton retained his heptathlon title, missing out on bettering his own world record in the gruelling seven-discipline event by just 1.18 seconds.
At the same time, New Zealand's Valerie Adams defended her shot put gold with another outstanding display, dominating her rivals and further ensuring her place in the pantheon of all-time field greats.
Day two of the three-day competition also saw Brazil's Mauro Vinicius Da Silva retain his long jump title.
But there was no such luck for Australian Sally Pearson, silver medallist in the 60m hurdles, Morocco's Abdelaati Iguider, bronze medallist in the 1500m, or Costa Rica's Nery Brenes, last in the men's 400m.
The blue running track at Sopot's Ergo Arena was also witness to a shock victory in the men's 60m by Kilty, a late replacement for injured teammate James Dasaolu.
The 24-year-old made a storming start and held his form to time a personal best of 6.49 seconds for a remarkable gold, ahead of rivals such as 2010 champion Dwain Chambers and multi-relay medal-winning Jamaican Nesta Carter, the fifth fastest athlete of all time over 100m.
But the day's real excitement belonged to Ashton, left gasping for air after cruelly failing to better the heptathlon world record and ruing the fact he was "not a robot".
Eaton, whose Canadian wife Brianne Thiesen Eaton won silver in the women's pentathlon on Friday, was overnight leader after the first four events (60m - 6.66sec, long jump - 7.78m, shot put - 14.88m, high jump - 2.06m).
On Saturday, he timed 7.64sec in the 60m hurdles before nailing 5.20m in the pole vault, leaving himself the goal of running 2:33.54 or faster in the final event, the strength-sapping 1,000m.
Leading from the front, Eaton pushed himself all the way, but was left needing to run a final 200 metres in 28 seconds, something that fell 1.18sec beyond an athlete who is also the current world and Olympic decathlon champion and world record holder.
"I'm happy, but I wish I could have got the world record," said Eaton, who missed out on what could have been a $50,000 (36,000 euros) bonus for a new world record.
Eaton eventually crossed the line in 2:34.72 for a total of 6,632 points in the indoor seven-discipline event, 13 short of the world record of 6,645 he set when winning the indoor title in Istanbul in 2010.
"It's hard to break the world record every time. It was a good competition overall, and my wife did well, so it was a good family effort," Eaton said.
For Adams, it was another masterful display and justified her return to action after surgery on her ankle and knee.
"It is very, very sweet," a buoyant Adams said. "Over the last six months, I've been training and rehabilitating after surgery. We didn't want to push it which is hard to do because I love competitions.
"It is what I work for. It is what I crave every day. I love the competitions, everything about track and field. I love my life. This is my job and I love my job."
Despite shining in qualification, Pearson had to be content with silver, 0.05sec behind American Nia Ali, who clocked a personal best of 7.80sec in the 60m hurdles.
Unheralded British sprinter Kilty said he had thrived on his underdog tag, hailing his victory as "compensation" for not making the UK team over the last four seasons.
"Even yesterday, people were telling me I should be happy to be here and I felt like an underdog," said a visibly stunned Kilty.
"Nobody was thinking of me as a favourite and I showed them they were all wrong."
Selected world indoor championships results on Saturday:
1. Richard Kilty (GBR) 6.49
2. Marvin Bracy (USA) 6.51
3. Femi Ogunode (QAT) 6.52
4. Su Bingtian (CHN) 6.52
5. Gerald Phiri (ZAM) 6.52
6. Dwain Chambers (GBR) 6.53
7. Nesta Carter (JAM) 6.57
8. Kimmari Roach (JAM) 6.58
1. Pavel Maslak (CZE) 45.24
2. Chris Brown (BAH) 45.58
3. Kyle Clemons (USA) 45.74
4. David Verburg (USA) 46.21
5. Lalonde Gordon (TRI) 46.39
6. Nery Brenes (CRC) 47.32
1. Ayanleh Souleiman (DJI) 3:37.52
2. Aman Wote (ETH) 3:38.08
3. Abdalaati Iguider (MAR) 3:38.21
4. Ilham Tanui zbilen (TUR) 3:39.10
1. Mauro Vinicius da Silva (BRA) 8.28
2. Li Jinzhe (CHN) 8.23
3. Michel Tornus (SWE) 8.21
4. Lois Tstoumas (GRE) 8.13
5. Aleksandr Menkov (RUS) 8.08
6. Adrian Strzalkowski (POL) 7.96
7. Luis Rivera (MEX) 7.93
8. Christian Reif (GER) 7.75
1. Konstadinos Filippdis (GRE) 5.80
2. Malte Mohr (GER) 5.80
3. Jan Kudlicka (CZE) 5.80
4. Thiago Braz da Silva (BRA) 5.75
5. Xue Changrui (CHN) 5.75
6. Robert Sobera (POL) 5.65
7. Augusto de Oliveira (BRA) 5.65
8. Luke Cutts (GBR) 5.65
9. Yang Yancheng (CHN) 5.55
10. Jrme Clavier (FRA) 5.55
11. Kvin Mnaldo (FRA) 5.55
12. Pawel Wojciechowski (POL) 5.40
1. Ashton Eaton (USA) 6632 pts
2. Andrei Krauchanka (BLR) 6303
3. Thomas van der Plaetsen (BEL) 6259
4. Eelco Sintnicolaas (NED) 6198
5. Oleksiy Kasyanov (UKR) 6176
6. Kai Kazmirek (GER) 6173
7. Damian Warner (CAN) 6129
8. Pascal Behrenbruch (GER) 4983
1. Francena McCorory (USA) 51.12
2. Kaliese Spencer (JAM) 51.54
3. Shaunae Miller (BAH) 52.06
4. Justyna Swiety (POL) 52.20
5. Patricia Hall (JAM) 52.51
6. Joanna Atkins (USA) 52.55
1. Abeba Aregawi (SWE) 4:00.61
2. Axumawit Embaye (ETH) 4:07.12
3. Nicole Sifuentes (CAN) 4:07.61
4. Siham Hilali (MAR) 4:07.62
5. Treniere Moser (USA) 4:07.84
6. Luiza Gega (ALB) 4:08.24
7. Svetlana Karamasheva (RUS) 4:13.89
. Heather Kampf (USA) DSQ
. Rababe Arafi (MAR) DSQ
1. Nia Ali (USA) 7.80
2. Sally Pearson (AUS) 7.85
3. Tiffany Porter (GBR) 7.86
4. Cindy Billaud (FRA) 7.89
5. Janay DeLoach Soukup (USA) 7.90
6. Cindy Roleder (GER) 8.01
7. Nadine Hildebrand (GER) 8.02
8. Yuliya Kondakova (RUS) 8.08
1. Maria Kuchina (RUS) 2.00
1. Kamila Licwinko (POL) 2.00
3. Ruth Beitia (ESP) 2.00
4. Justyna Kasprzycka (POL) 1.97
5. Emma Green Tregaro (SWE) 1.94
6. Blanka Vlasic (CRO) 1.94
7. Levern Spencer (LCA) 1.94
8. Nafissatou Thiam (BEL) 1.90
8. Marie-Laurence Jungfleisch (GER) 1.90
1. Ekaterina Koneva (RUS) 14.46
2. Olga Saladukha (UKR) 14.45
3. Kimberly Williams (JAM) 14.39
4. Patrcia Mamona (POR) 14.26
5. Li Yanmei (CHN) 14.19
6. Kseniya Dziatsuk (BLR) 14.13
7. Yarianna Martnez (CUB) 13.99
8. Dana Veldkov (SVK) 13.75
1. Valerie Adams (NZL) 20.67
2. Christina Schwanitz (GER) 19.94
3. Gong Lijiao (CHN) 19.24
4. Evgeniia Kolodko (RUS) 19.11
5. Michelle Carter (USA) 19.10
6. Anita Mrton (HUN) 18.17
7. Yuliya Leantsiuk (BLR) 18.16
8. Jeneva McCall (USA) 18.05