So my baseball bets didn't turn out so well this year. If I made the bets I wanted, I would've lost 14% on my investment...

Team	Investment	Wager	Vegas	Actual	Odds	Return
LAA	31.77	Under	92	95	1.77	0.00
BOS	28.87	Win AL East		0 GB	3.00	0.00
OAK	28.79	Win AL West		7 GB	4.40	0.00
SD	19.67	Under	86	82	2.10	41.31
NYY	16.61	Under	101	95	1.77	29.39
TB	12.86	Under	71	67	1.77	22.75
CHW	12.73	Under	82	99	1.95	0.00
WAS	12.45	Over	71	81	1.83	22.82
PHI	12.24	Over	85	88	1.91	23.36
TOR	11.66	Over	71	80	1.87	21.79
PHI	11.73	Win NL East		2 GB	6.50	0.00
HOU	10.69	Under	82	89	1.91	0.00
NYM	10.69	Under	84	83	1.91	20.41
OAK	9.24	Over	82	88	1.77	16.36
S Green	10.00	Under	31 HR	22	1.80	18.00
D Jeter	10.00	Under	191 Hits	202	1.80	0.00
Overall	250.00					216.20
						-14%

A few lessons to learn from this experiment:

1) You just can't outsmart the Vegas sportsbooks.

2) There's a lot of variance in sportsbetting. Even though my bets were based on the results of 162 games for 12 different teams, the profitability of this investment came down to baseball's tiebreaker rules. Had the Red Sox won the tiebreaker to win the AL East championship, this investment would've returned a 21% profit.

3) Don't put all your eggs in one basket-- or even three. My top 3 investments were all losers, but 6 of my next 7 were winners.

4) I should stick to betting on season win totals-- I would've made a 20% profit had I done so. Picking division winners appears to be less profitable because there's a good chance that at least one other team in the division will play better than I expect...