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BOSTON MARATHON 2025

Lauren Moulton

Bib: 22758•F

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:46
Rank: #20545
Start → 5K
8:37/mi
26:46 split
10K· 6.21 mi
53:39
Rank: #20579 (-34)
5K → 10K
8:39/mi
26:53 split
15K· 9.32 mi
1:20:49
Rank: #20591 (-12)
10K → 15K
8:45/mi
27:10 split
20K· 12.43 mi
1:48:16
Rank: #20478 (+113)
15K → 20K
8:50/mi
27:27 split
Half· 13.11 mi
1:53:59
Rank: #20380 (+98)
20K → Half
8:23/mi
5:43 split
25K· 15.53 mi
2:15:17
Rank: #20116 (+264)
Half → 25K
8:47/mi
21:18 split
30K· 18.64 mi
2:43:40
Rank: #19751 (+365)
25K → 30K
9:08/mi
28:23 split
20M
2:56:19
Rank: #19646 (+105)
30K → 20M
9:19/mi
12:39 split
21M
3:06:13
Rank: #19525 (+121)
20M → 21M
9:54/mi
9:54 split
35K· 21.75 mi
3:13:04
Rank: #19515 (+10)
21M → 35K
9:09/mi
6:51 split
23M
3:24:39
Rank: #19402 (+113)
35K → 23M
9:15/mi
11:35 split
24M
3:33:57
Rank: #19369 (+33)
23M → 24M
9:18/mi
9:18 split
40K· 24.85 mi
3:42:05
Rank: #19347 (+22)
24M → 40K
9:31/mi
8:08 split
25.2M
3:45:42
Rank: #19323 (+24)
40K → 25.2M
10:29/mi
3:37 split
Finish· 26.22 mi
3:55:19
Rank: #19406 (-83)
25.2M → Finish
9:26/mi
9:37 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:59
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time2:01:20
Pace9:15 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2626:468:3726:46
8:37
-
10K
6.21 mi11:51:1953:398:3826:53
8:39
+0:02
15K
9.32 mi12:18:291:20:498:4027:10
8:45
+0:06
20K
12.43 mi12:45:561:48:168:4327:27
8:50
+0:05
Half
13.11 mi12:51:391:53:598:425:43
8:23
-0:27
25K
15.53 mi13:12:572:15:178:4321:18
8:47
+0:24
30K
18.64 mi13:41:202:43:408:4728:23
9:08
+0:21
20M
20.00 mi13:53:592:56:198:4912:39
9:19
+0:11
21M
21.00 mi14:03:533:06:138:529:54
9:54
+0:35
35K
21.75 mi14:10:443:13:048:536:51
9:09
-0:45
23M
23.00 mi14:22:193:24:398:5411:35
9:15
+0:06
24M
24.00 mi14:31:373:33:578:559:18
9:18
+0:03
40K
24.85 mi14:39:453:42:058:568:08
9:31
+0:13
25.2M
25.20 mi14:43:223:45:428:573:37
10:29
+0:58
Finish
26.22 mi14:52:593:55:198:599:37
9:26
-1:03

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

8:23 /mi

Average Pace

8:59 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:17

57% of race

Time at Steady Pace

1:08:46

29% of race

Time at Slower Pace

31:16

13% of race

Average Pace: 8:58 /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 mi11:24:2626:468:3726:46
8:37
#20545
10K
6.21 mi11:51:1953:398:3826:53
8:39
#20579
15K
9.32 mi12:18:291:20:498:4027:10
8:45
#20591
20K
12.43 mi12:45:561:48:168:4327:27
8:50
#20478
Half
13.11 mi12:51:391:53:598:425:43
8:23
#20380
25K
15.53 mi13:12:572:15:178:4321:18
8:47
#20116
30K
18.64 mi13:41:202:43:408:4728:23
9:08
#19751
20M
20.00 mi13:53:592:56:198:4912:39
9:19
#19646
21M
21.00 mi14:03:533:06:138:529:54
9:54
#19525
35K
21.75 mi14:10:443:13:048:536:51
9:09
#19515
23M
23.00 mi14:22:193:24:398:5411:35
9:15
#19402
24M
24.00 mi14:31:373:33:578:559:18
9:18
#19369
40K
24.85 mi14:39:453:42:058:568:08
9:31
#19347
25.2M
25.20 mi14:43:223:45:428:573:37
10:29
#19323
Finish
26.22 mi14:52:593:55:198:599:37
9:26
#19406
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi205457833783320729(Top 73%)7843(Top 64%)7843(Top 433%)
10K6.21 mi3.10 mi20579-347813+207813+2020624(Top 73%)7813(Top 64%)7813(Top 431%)
15K9.32 mi3.11 mi20591-127803+107803+1020729(Top 73%)7843(Top 64%)7843(Top 433%)
20K12.43 mi3.11 mi20478+1137748+557748+5520134(Top 71%)7557(Top 62%)7557(Top 417%)
Half13.11 mi0.68 mi20380+987694+547694+5418549(Top 65%)6663(Top 54%)6663(Top 368%)
25K15.53 mi2.42 mi20116+2647553+1417553+14118861(Top 66%)6902(Top 56%)6902(Top 381%)
30K18.64 mi3.11 mi19751+3657382+1717382+17118341(Top 65%)6762(Top 55%)6762(Top 373%)
20M20.00 mi1.36 mi19646+1057347+357347+3518353(Top 65%)6926(Top 57%)6926(Top 382%)
21M21.00 mi1.00 mi19525+1217303+447303+4417926(Top 63%)6756(Top 55%)6756(Top 373%)
35K21.75 mi0.75 mi19515+107312-97312-919012(Top 67%)7463(Top 61%)7463(Top 412%)
23M23.00 mi1.25 mi19402+1137289+237289+2317588(Top 62%)6785(Top 55%)6785(Top 374%)
24M24.00 mi1.00 mi19369+337294-57294-518835(Top 66%)7460(Top 61%)7460(Top 411%)
40K24.85 mi0.85 mi19347+227291+37291+318782(Top 66%)7520(Top 61%)7520(Top 415%)
25.2M25.20 mi0.35 mi19323+247292-17292-118995(Top 67%)7634(Top 62%)7634(Top 421%)
Finish26.22 mi1.02 mi19406-837356-647356-6420970(Top 74%)8641(Top 71%)8641(Top 477%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20729

Females

7843

F45-49

7843

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20624

Females

7813

F45-49

7813

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20729

Females

7843

F45-49

7843

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20134

Females

7557

F45-49

7557

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18549

Females

6663

F45-49

6663

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18861

Females

6902

F45-49

6902

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

18341

Females

6762

F45-49

6762

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18353

Females

6926

F45-49

6926

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

17926

Females

6756

F45-49

6756

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

19012

Females

7463

F45-49

7463

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17588

Females

6785

F45-49

6785

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18835

Females

7460

F45-49

7460

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18782

Females

7520

F45-49

7520

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

18995

Females

7634

F45-49

7634

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

20970

Females

8641

F45-49

8641

Passing Analysis

Category:
Athletes Passed
2268
Passed By
1129
Net Change
+1139
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20545
5K → 10K264298-34#20545#20579
10K → 15K192204-12#20579#20591
15K → 20K238125+113#20591#20478
20K → Half991+98#20478#20380
Half → 25K31147+264#20380#20116
25K → 30K42358+365#20116#19751
30K → 20M14843+105#19751#19646
20M → 21M16342+121#19646#19525
21M → 35K5545+10#19525#19515
35K → 23M15239+113#19515#19402
23M → 24M8350+33#19402#19369
24M → 40K6341+22#19369#19347
40K → 25.2M4521+24#19347#19323
25.2M → Finish32115-83#19323#19406
TOTALS22681129+1139
📊

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