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BOSTON MARATHON 2025

Lauren Brown

Bib: 27678•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:16/mi
28:47
↑ 97↓ 3451.5%
10K· 6.21 mi
9:00/mi
56:44
↑ 79↓ 1380.4%
15K· 9.32 mi
9:04/mi
1:24:55
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:54:26
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
2:00:48
↑ 19↓ 370.5%
25K· 15.53 mi
9:51/mi
2:24:42
↑ 66↓ 880.2%
30K· 18.64 mi
10:46/mi
2:58:10
↑ 181↓ 1480.2%
20M
10:50/mi
3:12:53
↑ 64↓ 500.2%
21M
11:21/mi
3:24:14
↑ 106↓ 241.6%
35K· 21.75 mi
10:32/mi
3:32:07
↑ 17↓ 861.7%
23M
11:12/mi
3:46:08
↑ 23↓ 630.6%
24M
10:37/mi
3:56:45
↓ 821.3%
40K· 24.85 mi
10:34/mi
4:05:47
↓ 200.3%
25.2M
11:21/mi
4:09:42
↑ 13↓ 160.2%
Finish· 26.22 mi
10:04/mi
4:19:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:48
Pace9:13 /mi
2nd Half
Distance13.11 mi
Time2:19:10
Pace10:37 /mi
📊Positive Split: 15.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4628:479:1628:47
9:16
-
10K
6.21 mi12:12:4356:449:0827:57
9:00
-0:16
15K
9.32 mi12:40:541:24:559:0728:11
9:04
+0:04
20K
12.43 mi13:10:251:54:269:1229:31
9:30
+0:26
Half
13.11 mi13:16:472:00:489:136:22
9:20
-0:10
25K
15.53 mi13:40:412:24:429:1923:54
9:51
+0:31
30K
18.64 mi14:14:092:58:109:3333:28
10:46
+0:55
20M
20.00 mi14:28:523:12:539:3914:43
10:50
+0:04
21M
21.00 mi14:40:133:24:149:4411:21
11:21
+0:31
35K
21.75 mi14:48:063:32:079:457:53
10:32
-0:49
23M
23.00 mi15:02:073:46:089:5014:01
11:12
+0:40
24M
24.00 mi15:12:443:56:459:5210:37
10:37
-0:35
40K
24.85 mi15:21:464:05:479:539:02
10:34
-0:03
25.2M
25.20 mi15:25:414:09:429:553:55
11:21
+0:47
Finish
26.22 mi15:35:574:19:589:5510:16
10:04
-1:17

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

9:00 /mi

Average Pace

9:55 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:58

60% of race

Time at Steady Pace

1:15:43

29% of race

Time at Slower Pace

29:17

11% of race

Average Pace: 9:55 /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 mi11:44:4628:479:1628:47
9:16
#23445
10K
6.21 mi12:12:4356:449:0827:57
9:00
#22945
15K
9.32 mi12:40:541:24:559:0728:11
9:04
#22749
20K
12.43 mi13:10:251:54:269:1229:31
9:30
#22821
Half
13.11 mi13:16:472:00:489:136:22
9:20
#22840
25K
15.53 mi13:40:412:24:429:1923:54
9:51
#22840
30K
18.64 mi14:14:092:58:109:3333:28
10:46
#22978
20M
20.00 mi14:28:523:12:539:3914:43
10:50
#22977
21M
21.00 mi14:40:133:24:149:4411:21
11:21
#22940
35K
21.75 mi14:48:063:32:079:457:53
10:32
#22954
23M
23.00 mi15:02:073:46:089:5014:01
11:12
#22996
24M
24.00 mi15:12:443:56:459:5210:37
10:37
#22997
40K
24.85 mi15:21:464:05:479:539:02
10:34
#22951
25.2M
25.20 mi15:25:414:09:429:553:55
11:21
#22940
Finish
26.22 mi15:35:574:19:589:5510:16
10:04
#22950
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi234459410941022344(Top 79%)8752(Top 72%)8752(Top 160%)
10K6.21 mi3.10 mi22945+5009122+2889122+28822385(Top 79%)8807(Top 72%)8807(Top 161%)
15K9.32 mi3.11 mi22749+1968983+1398983+13922344(Top 79%)8752(Top 72%)8752(Top 160%)
20K12.43 mi3.11 mi22821-729022-399022-3922912(Top 81%)9100(Top 74%)9100(Top 166%)
Half13.11 mi0.68 mi22840-199031-99031-923092(Top 81%)9205(Top 75%)9205(Top 168%)
25K15.53 mi2.42 mi228409056-259056-2522924(Top 81%)9151(Top 75%)9151(Top 167%)
30K18.64 mi3.11 mi22978-1389175-1199175-11923548(Top 83%)9628(Top 79%)9628(Top 176%)
20M20.00 mi1.36 mi22977+19199-249199-2423242(Top 82%)9550(Top 78%)9550(Top 175%)
21M21.00 mi1.00 mi22940+379196+39196+322283(Top 78%)9126(Top 75%)9126(Top 167%)
35K21.75 mi0.75 mi22954-149217-219217-2123261(Top 82%)9684(Top 79%)9684(Top 177%)
23M23.00 mi1.25 mi22996-429262-459262-4523662(Top 83%)9928(Top 81%)9928(Top 182%)
24M24.00 mi1.00 mi22997-19291-299291-2923123(Top 81%)9693(Top 79%)9693(Top 177%)
40K24.85 mi0.85 mi22951+469284+79284+722110(Top 78%)9260(Top 76%)9260(Top 169%)
25.2M25.20 mi0.35 mi22940+119285-19285-121709(Top 76%)9015(Top 74%)9015(Top 165%)
Finish26.22 mi1.02 mi22950-109295-109295-1023161(Top 82%)9748(Top 80%)9748(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22344

Females

8752

F18-39

8752

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22385

Females

8807

F18-39

8807

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22344

Females

8752

F18-39

8752

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

22912

Females

9100

F18-39

9100

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

23092

Females

9205

F18-39

9205

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

22924

Females

9151

F18-39

9151

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

23548

Females

9628

F18-39

9628

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23242

Females

9550

F18-39

9550

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22283

Females

9126

F18-39

9126

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

23261

Females

9684

F18-39

9684

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

23662

Females

9928

F18-39

9928

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23123

Females

9693

F18-39

9693

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22110

Females

9260

F18-39

9260

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21709

Females

9015

F18-39

9015

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23161

Females

9748

F18-39

9748

Passing Analysis

Category:
Athletes Passed
1729
Passed By
1234
Net Change
+495
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23445
5K → 10K56161+500#23445#22945
10K → 15K28084+196#22945#22749
15K → 20K160232-72#22749#22821
20K → Half2241-19#22821#22840
Half → 25K1481480#22840#22840
25K → 30K110248-138#22840#22978
30K → 20M7978+1#22978#22977
20M → 21M8750+37#22977#22940
21M → 35K3953-14#22940#22954
35K → 23M59101-42#22954#22996
23M → 24M5354-1#22996#22997
24M → 40K7226+46#22997#22951
40K → 25.2M2514+11#22951#22940
25.2M → Finish3444-10#22940#22950
TOTALS17291234+495
📊

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