A Dorchester man was ordered held in lieu of $10,000 bail today on a variety of charges related to a series of incidents Wednesday night that started when he allegedly drove away after hitting a 15-year-old on a scooter in Dorchester and ended with his capture in Jamaica Plain after police say he crashed into another car.

The teen remains in the hospital Thursday morning with injuries so serious the homicide unit was initially called in after the crash.

At his arraignment in Dorchester District Court today, Assistant Suffolk County District Attorney Brian Brodigan said Manuel Alfonseca, 32, has a record dating back to 1999 that includes driving recklessly, operating without a license, larceny, illegal possession of a gun and possession of marijuana with intent to distribute.

According to Brodigan, after hitting the teen around 8 p.m. at Kingsdale and Standish streets, police spotted his red Infiniti racing up Blue Hill Avenue towards Franklin Park, weaving in and out of traffic. He veered right onto Old Road and then Columbia Road - going the wrong way.

Police lost him at Wolcott Street, but when they got word of a car crash on Glenside Avenue on the other side of Franklin Park in Jamaica Plain, they rushed to the scene, to find Alfonseca getting out of his Infiniti after hitting another car and trying to run away, Brodigan said.

Alfonseca was released last night after his family posted $1,000 bail. Brodigan asked for the increase in bail due to his record, which also includes at least one incidence of not showing up in court on an earlier charge and the seriousness of the victim's injuries.

Alfonseca's attorney, Kate McIntrye Sullivan, asked that Alfonseca be released on the same $1,000 bail. She said Alfonseca may not have stopped after hitting the teen because he noticed "several individuals racing towards his car. ... He got nervous."

Sullivan noted he had shown up in court for his arraignment and said he was a man turning his life around: He is going for his GED, has a job in construction and is active in the lives of his two children, aged 4 and 9. And she said when she first talked to him, his first words were to inquire about the condition of the teen.

Sullivan said that while Alfonseca might have defaulted on an earlier charge in Dorchester, the judge should discount that in his bail consideration - Alfonseca didn't default because he wanted to evade the charge, but because at the time he was being held in connection with a newer charge in Roxbury.