The selection criteria for participating in the games was set strictly based on their ability to win at least a bronze medal for the country. Hence, the Singapore National Olympic Council asked the various sporting federation bodies to nominate their candidates based on their performance between 1 March 2005 to 24 June 2005, with achievements above the bronze medal scores in previous games. While this process was relatively smooth for some sports such as swimming, table tennis and badminton, it raised issues on management and competence for others like athletics, chess and squash.
Loh Wen Liang (Long Distance Qualifiers: 592; Short Distance Qualifiers: 1243; Elimination Round 1/16: defeated Thailand 157–153; lost to Malaysia 154–162)
Ong Chee Bin (Long Distance Qualifiers: 567; Short Distance Qualifiers: 1219; Elimination Round 1/16: defeated Indonesia 157–144; lost to Thailand 159–162)
Soh Wee Peng (Long Distance Qualifiers: 528; Short Distance Qualifiers: 1156; Elimination Round 1/16: defeated the Philippines152–148)
Woo Wei Leong (Long Distance Qualifiers: 569; Short Distance Qualifiers: 1202; Elimination Round 1/16: lost to Indonesia 152–153)
Men's individual compound
Lee Siak Wan Ray (Long Distance Qualifiers: 642; Short Distance Qualifiers: 1316; Elimination Round 1/16: lost to Thailand 161–167)
Heng Fook Hup Vinson (Long Distance Qualifiers: 649; Short Distance Qualifiers: 1320, seventh position; Elimination Round 1/16: lost to Thailand 158-1597)
Kwong Kok Fong Eugene (Long Distance Qualifiers: 630; Short Distance Qualifiers: 1319; Elimination Round 1/16: defeated Malaysia 169–159; Elimination Round 1/8: lost to Myanmar 156–161)
Ong Chong Soon Michael (Long Distance Qualifiers: 646, ninth position; Short Distance Qualifiers: 1322; Elimination Round 1/16: defeated Thailand 164–147; Elimination Round 1/8: lost to Myanmar 161–164)
Women's individual compound
Lee Bee Teng Shirlene (Long Distance Qualifiers: 634; Short Distance Qualifiers: 1300; Elimination Round 1/16: defeated Vietnam 149–128; Elimination Round 1/8: lost to Singapore 153–171)
Maryanne Gul (Long Distance Qualifiers: 660; Short Distance Qualifiers: 1328; Elimination Round 1/16: Bye; Elimination Round 1/8: defeated Singapore 171–153; Elimination Round 1/4: defeated the Philippines 105–100; Quarter-Finals: lost to the Philippines 99–114; Bronze Medal Match: defeated Myanmar 107–104. Finished third position)
Leong Yoke Sim Janie (Long Distance Qualifiers: 627; Short Distance Qualifiers: 1283; Elimination Round 1/16: defeated Vietnam 158–151; Elimination Round 1/8: lost to Thailand 155–163)
Tan Bee Wah Sharon (Long Distance Qualifiers: 590; Short Distance Qualifiers: 1711; Elimination Round 1/16: lost to Thailand 149–150)
100 m freestyle – Chay Jung Jun Mark (heats: 53.20, finals: 52.61. Finished fourth), Tay Zhi Rong Bryan (heats: 53.12, finals: 52.38. Finished third)
200 m freestyle – Chay Jung Jun Mark (heats: 1:59.06, finals: 1:56.97. Finished sixth), Tay Zhi Rong Bryan (heats: 2:02.14, finals: 1:54.39. Finished third)
400 m freestyle – Cheah Mingzhe Marcus (heats: 4:13.64, finals: 4:02.56. Finished fourth), Lee Jiann Yow Lionel (heats: 4:10.67, finals: 4:00.51. Finished first)
100 m backstroke – Chay Jung Jun Mark (heats: 1:00.69, finals: 58.49. Finished second), Lim Zhi Cong (heats: 1:01.18, finals: 1:01.14. Finished ninth)
200 m backstroke – Cheah Mingzhe Marcus (heats: 2:11.05, finals: 2:08.50. Finished third), Tan Lee Yu Gary (heats: 2:10.15, finals: 2:07.26. Finished second)
100 m breaststroke – Lim Zhi Cong (heats: 1:07.94, did not advance), Tan Jinwen Mark (heats: 1:06.89, finals: 1:17.49)
200 m breaststroke – Lim Zhi Cong (heats: 2:29.03, finals: 2:30.08. Finished eighth), Tan Jinwen Mark (heats: 2:26.54, finals: 2:25.12. Finished seventh)
100 m butterfly – Ng Cheng Xun (heats: 57.14, finals: 56.63. Finished fifth), Tan Lee Yu Gary (heats: 57.38, did not advance)
200 m butterfly – Ng Cheng Xun (heats: 2:11.84, finals: ?), Tan Lee Yu Gary (heats: 2:06.37, finals: 2:04.82. Finished third)
200 m individual medley – Lee Jiann Yow Lionel, (heats: 2:11.24, finals: 2:09.56. Finished fifth), Tan Lee Yu Gary (heats: 1:18.27, finals: 2:08.01. Finished third)
100 m freestyle – Ho Shu Yong (heats: 59.86, finals: 58.42s. Finished fourth), Joscelin Yeo (heats: 1:00.48, finals: 56.41s. Finished first)
200 m freestyle – Ho Shu Yong (heats: 2:21.70, did not advance), Mylene Ong (heats: 2:10.60, finals: 2:09.45. Finished sixth)
400 m freestyle – Goh Wan Ting (heats: 4:34.30, finals: 4:34.55.), Quah Ting Wen (heats: 4:26.98, finals: 4:24.75. Finished third)
800 m freestyle – Goh Wan Ting (finals: 9:25.75. Finished seventh), Quah Ting Wen (finals: 9:02.20. Finished second)
100 m backstroke – Bernardette Lee (heats: 1:08.50, finals: 1:07.93. Finished seventh), Tao Li (heats: 1:08.20, finals: 1:03.83. Finished first, new games record)
200 m backstroke – Bernardette Lee (heats: 2:25.19, finals: 2:23.21. Finished fourth), Tao Li (heats: 2:25.53, finals: 2:17.55. Finished first)
100 m butterfly – Tao Li (heats: 1:04.15, finals: 1:01.53. Finished third), Joscelin Yeo (heats: 1:03.59, finals: 59.91. Finished first, new games record)
200 m butterfly – Bernardette Lee (heats: 2:20.02, finals: 2:18.81. Finished third), Tao Li (heats: 2:21.96, finals: 2:14.11. Finished first, new games record)
73 kg – Yin Shanyang (Elimination: lost to Indonesia; 1st Repecharge: defeated Cambodia; 2nd Repecharge: lost to Vietnam, finished fifth position)
90 kg – Wee Pui Seng (Elimination: defeated Thailand 1–0; 1st Repecharge: lost to Indonesia; 2nd Repecharge: lost to Malaysia, finished fifth position)
Individual Kumite (55 kg) – Jeremy Aruldoss Bronze match (withdraw due to rib injury)1st rd- Win 6–5 to Myanmar, Quarter-final Win 12–5 to Cambodia, Semis Lost to Malaysia (Asian Games Gold) 1–9
Individual Kumite (75 kg) – Lee Chia Jun (Disqualified) Technical Fault
Individual Kumite (open weight) – Lee Chia Jun (defeated Thailand 6–3, placed third)
Tanding Class F – Mohd Iswandy (Preliminaries: defeated Malaysia 3–2, Round 2: lost to Vietnam 0–5, finished third position)
Tanding Class G – Abdul Kadir (Preliminaries: defeated Myanmar 4–1; defeated Thailand 4–1; Finals: finished second position)
Tanding Class H – Mohd Imran (Preliminaries: defeated the Philippines 5–0; Semi-Finals: defeated Vietnam 5–0; Finals: defeated Indonesia 5–0, finished first position)
Tanding Class I – Mohd Yusoff (Preliminaries: defeated Indonesia 5–0; Finals: lost to Vietnam 1–4, finished second position)
Yang Zi (Stage 1: defeated Myanmar 3–0; Stage 1: defeated Thailand 3–1; Stage 1: defeated Malaysia 3–0; Semi Finals: lost to Indonesia 2–4, finished third position)
Finals: defeated Thailand 3–1, finished first position
Mixed doubles
Cai Xiaoli and Li Jiawei (Stage 1: defeated Vietnam 3–1; Semi-finals: defeated Malaysia 3–2; Finals: lost to Singapore 1–3, finished second position)
Yang Zi and Zhang Xueling (Stage 1: defeated Indonesia 3–0; Semi-finals: defeated Thailand 3–0; Finals: defeated Singapore 3–1, finished first position)
Taijiquan (taijijian) – Goh Qiu Bin (Elimination: 9.18, first position; finals: 18.56, first position), Shen Pinxiu (Finals: 18.36, third position), Yang Yong Kai (Elimination: 9.16, sixth position)