That's the Team's WHIP for the season so far, and currently leads the majors. One reason the Braves have been doing so well is they are keeping runners off the bases. The Starting staff is doing a tremendous job, with four starters having WHIPs below 1.03; Hudson 0.95, Beachy 0.97, Jurrjens 1.01, Hanson 1.02. Obviously, if runners are not on base they cannot score, so WHIP would seem to somewhat relate to winning, though not as well as advanced stats like FIP or xFIP. This seems to hold mostly true, as the top 7 teams in the NL in WHIP all have winning records except for San Diego (12-19) and San Francisco (15-16). However, the Padres are last in the NL in runs scored, having scored just 97 runs in 31 games, and the Giants are next to last with just 110 runs scored.
PHI: 1.13 WHIP (3.03 ERA), 8.2 K/9
SDP: 1.20 WHIP (2.96 ERA), 6.9 K/9
SFG: 1.23 WHIP (3.47 ERA), 8.6 K/9
COL: 1.25 WHIP (3.68 ERA), 7.5 K/9
FLA: 1.26 WHIP (3.56 ERA), 6.8 K/9
STL: 1.31 WHIP (3.49 ERA), 6.8 K/9
The top 3 teams in WHIP in the AL are Tampa Bay (1.171), Cleveland (1.211), and Los Angeles (1.211)
Oakland has the best ERA in the AL by a long shot (2.66, almost half a run better than their next competitor) and is the only team in the majors ahead of Atlanta, but they have allowed 13 unearned runs to the Braves' 4. Philadelphia is the only team to have allowed fewer runs (98 vs. Atlanta's 102).
Another random fact: In the history of the Braves franchise (1876-2011), the Braves' team ERA is 3.65 (they are 6 games under .500, and could go above .500 easily with a good year this year). Only the Dodgers (3.54 from 1884-2011), Giants (3.56 from 1883-2011), and Yankees (3.64 from 1901-2011) have better ERAs in history. Hope this was interesting.