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BOSTON MARATHON 2025

Mary Slocum

Bib: 10612 F IE

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Female)
#0 / 12228
Top 8%
Masters (Masters Women)
#0 / 6759
Top 2%
Division (F60-64)
#0 / 624
Top 0.3%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:56/mi
21:33
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:03/mi
43:26
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:04/mi
1:05:22
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:06/mi
1:27:26
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:05/mi
1:32:16
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:13/mi
1:49:47
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:28/mi
2:12:58
↑ 181↓ 1480.2%
138 ft elev
20M
7:36/mi
2:23:17
↑ 64↓ 500.2%
148 ft elev
21M
7:58/mi
2:31:15
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:04/mi
2:36:32
↑ 17↓ 861.7%
156 ft elev
23M
7:30/mi
2:45:55
↑ 23↓ 630.6%
116 ft elev
24M
7:09/mi
2:53:04
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:26/mi
2:59:25
↓ 200.3%
20 ft elev
25.2M
8:10/mi
3:02:14
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:25/mi
3:09:47
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:32:167:02 /mi⚡ faster
2nd Half
1:37:317:26 /mi+5.7%
Positive split — 5.7% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
21:336:563.11 mi21:33
6:56
-
10K
43:266:593.10 mi21:53
7:03
+0:07
15K
1:05:227:013.11 mi21:56
7:04
+0:01
20K
1:27:267:023.11 mi22:04
7:06
+0:02
Half(13.11 mi)
1:32:167:020.68 mi4:50
7:05
-0:01
25K
1:49:477:042.42 mi17:31
7:13
+0:08
30K
2:12:587:083.11 mi23:11
7:28
+0:15
20M
2:23:177:101.36 mi10:19
7:36
+0:08
21M
2:31:157:121.00 mi7:58
7:58
+0:22
35K
2:36:327:120.75 mi5:17
7:04
-0:54
23M
2:45:557:131.25 mi9:23
7:30
+0:26
24M
2:53:047:131.00 mi7:09
7:09
-0:21
40K
2:59:257:130.85 mi6:21
7:26
+0:17
25.2M
3:02:147:140.35 mi2:49
8:10
+0:44
Finish(26.22 mi)
3:09:477:151.02 mi7:33
7:25
-0:45
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:56 /mi

Average Pace

7:15 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:59:00

94% of race

Time at Steady Pace

10:47

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi7346777777805110521052
10K3.10 mi7786-440922-145922-145825310941094
15K3.11 mi7848-62947-25947-25805110521052
20K3.11 mi7730+118925+22925+227543949949
Half(13.11 mi)0.68 mi7744-14931-6931-6822411621162
25K2.42 mi7717+27946-15946-15778711331133
30K3.11 mi7558+159935+11935+11748911971197
20M1.36 mi7488+70953-18953-18763613821382
21M1.00 mi7407+81960-7960-7718313721372
35K0.75 mi7302+105951+9951+95828870870
23M1.25 mi7191+111953-2953-2660512261226
24M1.00 mi7078+113947+6947+65543901901
40K0.85 mi7002+76946+1946+1638812871287
25.2M0.35 mi6985+17947-1947-1690215741574
Finish(26.22 mi)1.02 mi6996-11987-40987-40856023072307

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

8051

Females

1052

F60-64

1052

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

8253

Females

1094

F60-64

1094

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

8051

Females

1052

F60-64

1052

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7543

Females

949

F60-64

949

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

8224

Females

1162

F60-64

1162

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7787

Females

1133

F60-64

1133

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7489

Females

1197

F60-64

1197

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7636

Females

1382

F60-64

1382

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

7183

Females

1372

F60-64

1372

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

5828

Females

870

F60-64

870

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6605

Females

1226

F60-64

1226

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5543

Females

901

F60-64

901

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6388

Females

1287

F60-64

1287

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6902

Females

1574

F60-64

1574

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8560

Females

2307

F60-64

2307

Passing Analysis

Category:
Passed
1625
Passed By
1275
Net Change
+350
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7346
5K → 10K71511-440#7346#7786
10K → 15K115177-62#7786#7848
15K → 20K19274+118#7848#7730
20K → Half2034-14#7730#7744
Half → 25K12497+27#7744#7717
25K → 30K264105+159#7717#7558
30K → 20M13060+70#7558#7488
20M → 21M11938+81#7488#7407
21M → 35K1138+105#7407#7302
35K → 23M14736+111#7302#7191
23M → 24M12815+113#7191#7078
24M → 40K10125+76#7078#7002
40K → 25.2M3316+17#7002#6985
25.2M → Finish6879-11#6985#6996
TOTALS16251275+350

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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