Gaithersburg's Solomon Vault turns to run through a host of Sherwood players on his way to scoring a 71-yard touchdown during a Sept. 16 game at Sherwood. (Toni L. Sandys/WASHINGTON POST)

Gaithersburg running back Solomon Vault picked up a scholarship offer from Marshall last week, marking the second offer in as many months for one of the area’s top junior running backs.

The Thundering Herd joins Old Dominion in the race for Vault, and it could be a sign of things to come for the 5-foot-10, 185-pound speedster. Both programs run spread offenses that tailor to Vault’s ability to run in the open field, which was his strong suit during a junior campaign when he rushed for 1,251 yards and 22 touchdowns — the second consecutive year that he amassed 1,000 yards on the ground.

Old Dominion will join the Conference USA in 2014, just in time for Vault’s sophomore season, and he said in December that he was intrigued with the Monarch’s offense. He echoed that sentiment this week in the wake of his second offer, as Marshall’s attack was particularly prolific in 2012. The Thundering Herd finished sixth in the country in total offense, seventh in scoring offense and first in passing offense, averaging 365 yards per game in the latter category.

“They have a great, great tradition at Marshall. . . one of the most prolific offenses in the country. They have great people over there,” Vault said. “It’s very exciting to get that offer.”

Vault expects more offers to come this spring, especially after he takes the SAT. He is enrolled in a Saturday preparation class for the test, which he said isn’t the most thrilling way to spend part of his weekend, but a necessary part of the recruiting process.

“It’s pretty boring,” Vault said, “but it will be all worth it soon.”

Recruit Watch: Offers, commitments and signings