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BOSTON MARATHON 2025

Shannon Bowen-Kievman

CT

Bib: 23434 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
8:49/mi
27:24
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:49/mi
54:46
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:42/mi
1:21:47
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:41/mi
1:48:47
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:39/mi
1:54:41
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:40/mi
2:15:42
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:28/mi
2:45:06
↑ 181↓ 1480.2%
138 ft elev
20M
9:57/mi
2:58:37
↑ 64↓ 500.2%
148 ft elev
21M
13:48/mi
3:12:25
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:26/mi
3:20:13
↑ 17↓ 861.7%
156 ft elev
23M
10:41/mi
3:33:35
↑ 23↓ 630.6%
116 ft elev
24M
9:40/mi
3:43:15
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:18/mi
3:52:03
↓ 200.3%
20 ft elev
25.2M
10:58/mi
3:55:50
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:42/mi
4:05:43
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:41
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:11:02
Pace10:00 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0827:248:4927:24
8:49
-
10K
6.21 mi11:51:3054:468:4927:22
8:49
0:00
15K
9.32 mi12:18:311:21:478:4627:01
8:42
-0:07
20K
12.43 mi12:45:311:48:478:4527:00
8:41
-0:01
Half
13.11 mi12:51:251:54:418:455:54
8:39
-0:02
25K
15.53 mi13:12:262:15:428:4421:01
8:40
+0:01
30K
18.64 mi13:41:502:45:068:5129:24
9:28
+0:48
20M
20.00 mi13:55:212:58:378:5613:31
9:57
+0:29
21M
21.00 mi14:09:093:12:259:1013:48
13:48
+3:51
35K
21.75 mi14:16:573:20:139:127:48
10:26
-3:22
23M
23.00 mi14:30:193:33:359:1713:22
10:41
+0:15
24M
24.00 mi14:39:593:43:159:189:40
9:40
-1:01
40K
24.85 mi14:48:473:52:039:208:48
10:18
+0:38
25.2M
25.20 mi14:52:343:55:509:223:47
10:58
+0:40
Finish
26.22 mi15:02:274:05:439:239:53
9:42
-1:16

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:39 /mi

Average Pace

9:23 /mi

Slowest Pace

13:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:42

55% of race

Time at Steady Pace

1:11:16

29% of race

Time at Slower Pace

38:45

16% of race

Average Pace: 9:22 /mi

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

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:24:0827:248:4927:24
8:49
#21621
10K
6.21 mi11:51:3054:468:4927:22
8:49
#21525
15K
9.32 mi12:18:311:21:478:4627:01
8:42
#21123
20K
12.43 mi12:45:311:48:478:4527:00
8:41
#20698
Half
13.11 mi12:51:251:54:418:455:54
8:39
#20663
25K
15.53 mi13:12:262:15:428:4421:01
8:40
#20280
30K
18.64 mi13:41:502:45:068:5129:24
9:28
#20173
20M
20.00 mi13:55:212:58:378:5613:31
9:57
#20221
21M
21.00 mi14:09:093:12:259:1013:48
13:48
#20947
35K
21.75 mi14:16:573:20:139:127:48
10:26
#21055
23M
23.00 mi14:30:193:33:359:1713:22
10:41
#21169
24M
24.00 mi14:39:593:43:159:189:40
9:40
#21136
40K
24.85 mi14:48:473:52:039:208:48
10:18
#21147
25.2M
25.20 mi14:52:343:55:509:223:47
10:58
#21122
Finish
26.22 mi15:02:274:05:439:239:53
9:42
#21155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi216218417841720480(Top 72%)7701(Top 63%)7701(Top 591%)
10K6.21 mi3.10 mi21525+968354+638354+6321447(Top 76%)8277(Top 68%)8277(Top 635%)
15K9.32 mi3.11 mi21123+4028100+2548100+25420480(Top 72%)7701(Top 63%)7701(Top 591%)
20K12.43 mi3.11 mi20698+4257871+2297871+22919379(Top 68%)7124(Top 58%)7124(Top 547%)
Half13.11 mi0.68 mi20663+357853+187853+1820122(Top 71%)7562(Top 62%)7562(Top 580%)
25K15.53 mi2.42 mi20280+3837649+2047649+20418221(Top 64%)6552(Top 54%)6552(Top 503%)
30K18.64 mi3.11 mi20173+1077624+257624+2519804(Top 70%)7552(Top 62%)7552(Top 580%)
20M20.00 mi1.36 mi20221-487679-557679-5520772(Top 73%)8235(Top 67%)8235(Top 632%)
21M21.00 mi1.00 mi20947-7268095-4168095-41626016(Top 92%)11052(Top 90%)11052(Top 848%)
35K21.75 mi0.75 mi21055-1088167-728167-7223013(Top 81%)9560(Top 78%)9560(Top 734%)
23M23.00 mi1.25 mi21169-1148252-858252-8522478(Top 79%)9327(Top 76%)9327(Top 716%)
24M24.00 mi1.00 mi21136+338264-128264-1220295(Top 71%)8242(Top 67%)8242(Top 633%)
40K24.85 mi0.85 mi21147-118282-188282-1821358(Top 75%)8850(Top 72%)8850(Top 679%)
25.2M25.20 mi0.35 mi21122+258275+78275+720578(Top 72%)8456(Top 69%)8456(Top 649%)
Finish26.22 mi1.02 mi21155-338311-368311-3621931(Top 77%)9122(Top 75%)9122(Top 700%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20480

Females

7701

F50-54

7701

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21447

Females

8277

F50-54

8277

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20480

Females

7701

F50-54

7701

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19379

Females

7124

F50-54

7124

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

20122

Females

7562

F50-54

7562

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18221

Females

6552

F50-54

6552

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19804

Females

7552

F50-54

7552

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20772

Females

8235

F50-54

8235

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

26016

Females

11052

F50-54

11052

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

23013

Females

9560

F50-54

9560

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22478

Females

9327

F50-54

9327

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20295

Females

8242

F50-54

8242

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21358

Females

8850

F50-54

8850

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20578

Females

8456

F50-54

8456

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21931

Females

9122

F50-54

9122

Passing Analysis

Category:
Athletes Passed
2311
Passed By
1845
Net Change
+466
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21621
5K → 10K321225+96#21621#21525
10K → 15K45654+402#21525#21123
15K → 20K44621+425#21123#20698
20K → Half5116+35#20698#20663
Half → 25K3885+383#20663#20280
25K → 30K283176+107#20280#20173
30K → 20M82130-48#20173#20221
20M → 21M10736-726#20221#20947
21M → 35K35143-108#20947#21055
35K → 23M47161-114#21055#21169
23M → 24M7643+33#21169#21136
24M → 40K4960-11#21136#21147
40K → 25.2M3813+25#21147#21122
25.2M → Finish2962-33#21122#21155
TOTALS23111845+466
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing