CREATE TABLE table_204_520 (id DECIMAL, "outcome" TEXT, "no." DECIMAL, "date" DECIMAL, "championship" TEXT, "surface" TEXT, "opponent" TEXT, "score" TEXT)

how many consecutive championships occurred in baltimore , u.s. ?
SELECT COUNT("championship") FROM table_204_520 WHERE "championship" = 'baltimore, u.s'
SELECT COUNT("championship") FROM "table_204_520" WHERE "championship" = 'baltimore, u.s'