By Keith Idec

Errol Spence Jr. and Carlos Ocampo have comparable records and came in Friday at almost the same weight.

The similarities among them essentially end there.

The 28-year-old Spence (23-0, 20 KOs) is arguably boxing’s best welterweight and undoubtedly one of the top 10 boxers, pound-for-pound, in the sport. The 22-year-old Ocampo (22-0, 13 KOs) is an anonymous mandatory challenger, considered such an underdog that multiple Internet sports books list Spence as an unusually high 100-1 favorite over him entering their 12-round, 147-pound title fight Saturday night in Frisco, Texas.

Both boxers made weight Friday afternoon in the blazing Texas heat outside the Dallas Cowboys’ training facility, where they’re scheduled to fight for Spence’s title.

The 5-feet-9½ Spence stepped on the Texas commission’s scale at 146¾ pounds for the second defense of a title he won in May 2017 by knocking out Kell Brook in the 11th round in Sheffield, England. The 5-feet-10 Ocampo came in at 146½ pounds.

Showtime will televise the Spence-Ocampo match as the main event of a tripleheader from Ford Center at The Star.

Three of the other four fighters scheduled to compete in bouts broadcast by Showtime also made weight Friday afternoon at the Tostitos Championship Plaza.

Los Angeles’ Danny Roman (24-2-1, 9 KOs), the WBA super bantamweight champion, came in at 121¾ pounds for what was supposed to be his second title defense against Moises Flores. Mexico’s Flores (25-0, 17 KOs, 2 NC), the WBA’s interim champion and Roman’s mandatory challenger, officially weighed 123 pounds, one pound too many to fight for Roman's title.

Flores first weighed 123½ pounds, 1½ pounds over the super bantamweight limit of 122. Flores was given two hours by the Texas commission to come back and make weight, but couldn’t lose that final pound.

Roman and Flores still are expected to fight Saturday night, but Roman can’t lose his title, according to the WBA’s rules.

Before Flores and Roman got on the scale, former 130-pound champion Javier Fortuna (33-2-1, 23 KOs), a Dominican southpaw from Braintree, Massachusetts, officially weighed 139¾ pounds for his 10-round, 140-pound fight against Adrian Granados (18-6-2, 12 KOs). Granados, of Cicero, Illinois, got on the scale first at the same weight, 139¾ pounds.

The Fortuna-Granados fight will open Showtime’s three-bout broadcast at 9 p.m. ET/6 p.m. PT.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.