Details
| Name / Japanese | Tsurumaru Boy / ツルマルボーイ |
| Birth Year | 1998 |
| Sex | male |
| Earnings | 582,924,000 yen |
| Races-Wins / G1-Wins | 32-7 / 11-1 |
| Sire | Dance in the Dark |
| Dam (Sire) | Tsurumaru Girl (Soccer Boy) |
| Other site link | JBIS / Umanity / netkeiba |
All G1 races + grade races in which he finished 3rd or higher
| Y D/M |
Track | Race | No. | Pl. |  |
| 2002 03/03 |
Chukyo T2000 |
Toyota Sho Chukyo Kinen (G3) | 14 | 1 | |
| 2002 25/05 |
Chukyo T2000 |
Kinko Sho (G2) | 9 | 1 | |
| 2002 23/06 |
Hanshin T2200 |
Takarazuka Kinen (G1) | 9 | 2 | ◆ |
| 2002 06/10 |
Kyoto T2400 |
Kyoto Daishoten (G2) | 4 | 2 | G |
| 2002 27/10 |
Nakayama T2000 |
Tenno Sho (autumn) (G1) | 7 | 11 | ◆ |
| 2003 06/04 |
Hanshin T2000 |
Sankei Osaka Hai (G2) | 13 | 3 | G |
| 2003 04/05 |
Kyoto T3200 |
Tenno Sho (spring) (G1) | 4 | 4 | ◆ |
| 2003 31/05 |
Chukyo T2000 |
Kinko Sho (G2) | 5 | 2 | G |
| 2003 29/06 |
Hanshin T2200 |
Takarazuka Kinen (G1) | 9 | 2 | ◆ |
| 2003 02/11 |
Tokyo T2000 |
Tenno Sho (autumn) (G1) | 7 | 2 | ◆ |
| 2003 30/11 |
Tokyo T2400 |
Japan Cup (G1) | 7 | 15 | ◆ |
| 2003 28/12 |
Nakayama T2500 |
Arima Kinen (G1) | 1 | 4 | ◆ |
| 2004 06/06 |
Tokyo T1600 |
Yasuda Kinen (G1) | 14 | 1 | ◆ |
| 2004 27/06 |
Hanshin T2200 |
Takarazuka Kinen (G1) | 13 | 6 | ◆ |
| 2004 31/10 |
Tokyo T2000 |
Tenno Sho (autumn) (G1) | 5 | 4 | ◆ |
| 2004 26/12 |
Nakayama T2500 |
Arima Kinen (G1) | 13 | 8 | ◆ |
- In the Toyota Sho Chukyo Kinen, he won by 5 lengths.
It was his first grade race win. - In the Kinko Sho (2002), he was 2nd favorite.
He won by 1+1/2 lengths over the 2nd place finisher, Air Shakur. - After that, he was running well but not winning.
- In the Takarazuka Kinen (2002), he lost to Dantsu Flame by a neck.
- In the Kyoto Daishoten, he lost to Narita Top Road and finished 2nd.
- In the Kinko Sho (2003), he lost to Tap Dance City and finished 2nd.
- In the Takarazuka Kinen (2003), he lost to Hishi Miracle by a neck.
- In the Tenno Sho (autumn 2003), he lost to Symboli Kris S and finished 2nd.
- In the Yasuda Kinen, he was 6th favorite.
It was a race in which there was no strong horse and no one was considered to be the leading contender.
Tsurumaru Boy was considered to be good at long distance races since his sire is Dance in the Dark and his dam-sire is Soccer Boy.
He came from the very back of the pack on the home stretch.
He took the lead 100m before the finish line and won by a neck.
He finally won a G1 race at the age of six. - He retired in 2004 and became a stallion.
However, he was not in much demand as a stallion and was retired early.
Besides him, Delta Blues failed to become a stallion, and That’s the Plenty and Three Rolls were retired early due to lack of demand, so the survival of the sire line of Dance in the Dark is doomed.