After winning the first two games, the Tritons withstood a rally from the Seawolves in games three and four to preserve their fourth victory in the last five matches. Set scores were 25-23, 25-21, 22-25, 20-25 and 15-8.
UCSD, which won for just the second time on the road this season, improves to 9-7 overall with the victory and evens its conference mark to 6-6. The Tritons swept the season series with Sonoma (10-6, 7-5 CCAA) after also defeating the Seawolves in straight sets on September 11.
"That was a big win for us," head coach Ricci Luyties said. "We stayed focused when they came back to tie it at two games apiece and we were able to recapture the momentum in the fifth set to get the win. A few weeks ago, we probably would have lost that match, but we fought through it and came out on top tonight."
The Tritons' recent run comes on the heels of a five-match losing streak from September 15-25, with four of those losses coming in five sets.
Brunsting was brilliant on Friday, recording her first-career triple double to pave the way for the victory. In addition to her kill, assist and dig totals, she also hit at a .208 clip and finished with three service aces.
Allyson Sather finished with a match-high 25 kills in a losing effort for Sonoma State, while Keala Peterson sent down 16. Taylor Krenwinker racked up a match-high 31 digs, leading five Seawolves with double-digit totals in that category.
In a match that featured 26 ties and 11 lead changes, both squads finished with similar numbers statistically. Sonoma narrowly outhit UCSD, .221 to .220, while the Tritons finished with just one more block, 7-6. Both teams finished with identical service aces (4) and dig (106) totals.
Many of the ties and lead changes came in the first two sets, as the match was neck-and-neck early on, but the Tritons hit .264 and .244 in the first two games to grab a 2-0 lead.
Sonoma State was in control for the duration of the third set, coming away with the 25-22 win, as UCSD was only able to tie the score once in the frame (21-21).
The fourth set was close throughout, as 14 ties and five lead changes spearheaded an emotional fight by each team, but the Seawolves dug down and forced the deciding fifth set with a 25-20 win.
UCSD then shot out of the gate in the fifth, jumping out to a 6-0 lead, and eventually took the set and match 15-8.
The Tritons will look to make it three straight on Saturday night when they visit Humboldt State in Arcata. First serve is set for 7:00 p.m.