Washington Nationals Playoff Chances 2015-2 50/50

Beat Phillies 5-2, playoff odds unchanged at 27.8%
4-6   .400

How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

If winner is:HomeAway
Saturday100.0*Chance in playoffs100.0*Average seed
Nationals vs Phillies+2.7-2.7
+0.3-0.3
Blue Jays vs Braves+0.3-0.3
Mets vs Marlins-0.1+0.1

What If

Chances based on how well the Nationals finish out the regular season.   Explain

100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415Count
107-155In10055,365*
106102-49In10003,351
105101-50In100006,834
104100-51In1000013,530
10399-52In1000025,686
10298-53In1000048,034
10197-54In990087,340
10096-55In99100153,263
9995-56In991000262,994
9894-57In982000438,209
9793-58In963010707,387
9692-59100.0%93501001,114,251
9591-60100.090802001,708,073
9490-61100.0841203002,542,193
9389-62100.07717150003,689,197
9288-63100.06723280005,204,235
9187-64100.0553031200007,151,823
9086-6599.9423561710009,574,323
8985-6699.828389223000012,462,709
8884-6799.41736142761000015,811,188
8783-6898.18301930122000019,519,474
8682-6994.332123282051000023,474,996
8581-7084.91112322281220000027,496,556
8480-7167.50520132923810000031,360,984
8379-7244.002156223019610000034,846,037
8278-7322.200921126291751000037,714,857
8177-748.800503142828154100039,745,446
8076-753.10201517292814410040,806,655
7975-761.101001618302713300040,798,316
7874-770.400000172031261120039,732,281
7773-780.10000002923322491037,710,139
7672-790.00000002112733206134,839,253
7571-800.0000001416313214231,359,456
7470-810.000000017233626727,489,326
7369-820.000000021333371423,478,122
7268-830.0000001624432619,522,642
7167-840.0000000216433915,807,771
7066-85Out000019385212,466,078
6965-86Out0000530659,571,854
6864-87Out000223757,153,940
6763-88Out000116835,205,658
6662-89Out000011893,686,003
6561-90Out0007932,543,328
6460-91Out004961,704,365
6359-92Out003971,113,995
6258-93Out0298707,173
6157-94Out0199437,625
6056-95Out0199263,318
5955-96Out00100153,827
5854-97Out010087,998
5753-98Out010048,607
5652-99Out010025,940
5551-100Out010013,467
5450-101Out01006,914
4-53Out10058,854*
Total:27.8%556666777777888632,011,240

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs